Arlington County, Virginia

Technology

Eight sectors of the defense industrial base — and where Arlington is strongest

Drone software, research funding, sensing, a degree pipeline running well ahead of the target the state set for it — and, in the last twelve months, some of the largest venture rounds in the region. Arlington's technology sector is a compact one, and it has been growing quickly and in a particular direction.

Reviewed August 2026 Sourced below Eight sectors · the capital behind them
$632M Venture and growth capital raised by the Arlington companies on this page, September 2025 to July 2026
660 New jobs announced in the county across two months of 2026
2,520 Bachelor's degrees under Virginia's tech-talent programme, against a 1,155 target
$5.039B DARPA's FY2027 budget request, up from $4.322B enacted, directed from Ballston

The frame

Eight sectors, borrowed from the people who fund them.

The Defense Industrial Base Consortium runs an Other Transaction agreement for the Department of Defense, sponsored by its Warfighting Investments, Resourcing and Execution office and managed by Advanced Technology International. Its purpose is to reach technologies “typically reserved for commercial development” — across supply chains, industrial workforce, sustained production and scaling — and it sorts that work into eight sectors.

They are a good set of headings for a place like this, because they cover the whole span from raw material to trained engineer. Arlington contributes to every one of them, and in four it has genuine depth: uncrewed systems, microelectronics and sensing, the research funding that sets national direction, and the workforce being built to staff all of it.

ATI, which manages the consortium, keeps its Washington office at 901 North Stuart Street in Ballston — four blocks from DARPA, and a fair illustration of how tightly this county is packed.

What Arlington brings to each sector

Sector Arlington's contribution 01  Strategic and Critical Materials Federal loan capital and price discovery 02  Kinetic Capabilities Two corporate headquarters, and early capital 03  Energy Storage and Batteries Loan capital and grid-scale development 04  Manufacturing — Castings and Forgings The grant programme — and a foundry's investor 05  Sea, Land, Air, Space and Unmanned Systems Headquarters, autonomy software and the buyer 06  Microelectronics, Comms and Sensors Research direction, sensing and cyber 07  Workforce Degrees, at scale and ahead of target 08  Critical Chemicals The sector's national representation
Arlington's strength runs to direction, capital, software and people — the work that sets what gets built everywhere else.

Sea, Land, Air, Space and Unmanned Systems

[ 05 ]

Strongest sector · growing fastest

Arlington's best sector is uncrewed systems, and it is where the recent growth has concentrated.

AeroVironment runs its corporate headquarters from 241 18th Street South in Crystal City, moved from California in 2021 because, as its chief executive put it, the Washington area is “where many of our key customers are located.” The line directed from that office runs from the Puma and Raven aircraft through JUMP 20 to the tEODor and telemax ground robots and the Switchblade loitering munitions.

Auterion followed in May 2024, moving its corporate headquarters to 4250 Fairfax Drive in Ballston, and raised a $130 million Series B the following year for the autonomy software that flies other manufacturers' drones. Innovative Defense Technologies, also in Ballston, announced a $19 million expansion and 210 new jobs in May 2026. Boeing and Leonardo DRS both run from the county.

Quartermaster, also in Arlington, raised a reported $43 million Series A in May 2026 for software that coordinates uncrewed vessels as a single system — the same problem one layer down, on water.

The buyer is close by. The Defense Innovation Unit launched its Drone Dominance Program in February 2026 and its director told the House Armed Services Committee in May that it carries $1.1 billion over eighteen months, structured as four iterative “Gauntlets.”

Recent growth, Arlington-headquartered

$150M raised by Air — the company that was Govini until June 2026 — in a round led by Bain Capital in October 2025, taking it past a $1.25 billion valuation with around 300 employees in Rosslyn.
$130M Series B for Auterion in September 2025, led by Bessemer Venture Partners, of which $25 million is non-dilutive capital backed by the Office of Strategic Capital of the Department of War.
$75M Series C for Shift5 in 2025, for the platform that reads operational data off military vehicles, aircraft and trains from its Rosslyn office.
450 jobs in Spatial Front's Crystal City headquarters, announced in June 2026 with a $6 million company investment and state incentives.
210 jobs in Innovative Defense Technologies' Ballston expansion, announced May 2026 alongside a $19 million investment.
Across the wider region, venture investors put $5.3 billion into 341 deals in 2025, and $950 million into 61 deals in the first quarter of 2026.

Microelectronics, Comms and Sensors

[ 06 ]

Research direction · sensing

The national semiconductor research agenda is set from a building in Ballston.

DARPA's Microsystems Technology Office runs the Electronics Resurgence Initiative, committed at upwards of $1.5 billion over five years, whose second phase added domestic manufacturing, hardware security and supply-chain traceability to the original work on materials and design. The Office of Naval Research funds sensors, communications and power from the next block north.

Commercially, Leonardo DRS runs advanced sensing and network computing from 2345 Crystal Drive. Teledyne FLIR Defense opened a demonstration centre at 1550 Crystal Drive in September 2025 for imaging systems and chemical, biological and explosive detection. Shift5, in Rosslyn, closed a $75 million round in 2025 for onboard operational-technology data.

The fastest-growing company in this part of the county is two years old. Twenty, founded in Arlington in 2024, raised a $100 million Series B led by Accel in June 2026 at a $1 billion valuation and another $30 million from Khosla Ventures a month later at $1.2 billion — $168 million in total, for cyber-warfare software.

Three of the government's principal research funders, one street

675 DARPA
Six technical offices
One block
875 Office of Naval Research
Air Force Office of Scientific Research

North Randolph Street — Ballston, Arlington County

DARPA has worked from 675 N. Randolph since 2012, and the GSA search for its next lease — 354,020 rentable square feet, from December 2026 — is restricted to Arlington. ATI, which manages the consortium these sectors come from, is four blocks away on N. Stuart Street.

Workforce

[ 07 ]

Ahead of the target set for it

The degree programme built for Amazon is outrunning its own bachelor's target.

Virginia's Tech Talent Investment Program came out of the 2018 HQ2 bid and was written into state law the following year, committing participating universities to at least 25,000 additional degrees by 2039 against a state investment usually quoted at $1.1 billion. More than $550 million had been disbursed by the end of FY2025 — and on the bachelor's side the universities have produced 2,520 degrees against an interim target of 1,155, more than double.

The Arlington building for that is Fuse at Mason Square: 345,000 square feet at roughly $254 million, of which the state programme funded $90 million. It opened commercially in December 2024, took its first academic occupants in autumn 2025, and now holds George Mason's School of Computing alongside paying commercial tenants, with 44 engineering and computing faculty and 120 doctoral students in place at the October 2025 opening.

Marymount, on Glebe Road, launched a bachelor's degree in artificial intelligence in 2023 — with a required internship or research project and a course on trust, bias and social impact — and enrolled a record 2,839 undergraduates in 2025–26, up 13 per cent on the year.

Arrivals and expansions, by year

AeroVironment — corporate HQ
Boeing · RTX — global HQ
Auterion — HQ to Ballston
Scale AI — Crystal City office
IDT · Spatial Front — announced
20212022202420252026
Completed Announced in 2026
Scale AI left Washington for 22,000 square feet on Crystal Drive in December 2025, roughly four times the space it held on K Street, to work closer to its federal and defense customers.

Strategic and Critical Materials

[ 01 ]

Capital and price discovery

Arlington's contribution to critical minerals is money and a market.

The Office of Strategic Capital, which works from the Pentagon and so from Arlington County, made its first direct loan to MP Materials to build out critical-minerals supply. DARPA seeded the Critical Minerals Forum and runs the Open Price Exploration for National Security programme, an effort to establish honest pricing for minerals whose markets are thin and easily distorted.

The mining and stockpiling sit elsewhere in the region — the Defense Logistics Agency's Strategic Materials office is at Fort Belvoir, and the US Geological Survey's minerals centre is in Reston, both in Fairfax County.

Kinetic Capabilities

[ 02 ]

Two headquarters

Two Fortune 500 primes chose Arlington for their global headquarters within a year of each other.

Boeing announced its move from Chicago in May 2022 and files from 929 Long Bridge Drive in National Landing. RTX runs from 1000 Wilson Boulevard in Rosslyn. AeroVironment's loitering munitions business — Switchblade 300 and 600, and Blackwing — is directed from Crystal City.

These are headquarters decisions rather than production ones: the assembly lines stay in Arizona, Alabama and elsewhere. What moved to Arlington is where the company is run from, and how close that is to the customer.

The county also has early capital pointed at this sector. Lavrock Ventures, in Ballston, holds both Castelion, which builds long-range strike systems, and Aventra, whose guidance kits convert unguided munitions into precision ones. RTX Ventures, in Rosslyn, is an investor in Ursa Major, which makes solid rocket motors and hypersonic propulsion.

Energy Storage and Batteries

[ 03 ]

Loan capital · grid-scale projects

A $1.4 billion battery commitment was signed here this month.

In August 2026 the Office of Strategic Capital committed a conditional loan of $1.4 billion to Sila Nanotechnologies for silicon-carbon anodes and lithium-ion cell production, citing satellites, uncrewed aircraft and munitions among the end uses. Lightshift Energy, a utility-scale storage developer and operator, is headquartered in the county and has been putting battery portfolios into rural power agencies. Leonardo DRS carries electric power and propulsion among its product lines.

Lightshift is well capitalised for its size. Greenbacker Capital Management put $100 million behind it in March 2024 — $20 million of growth equity and $80 million against infrastructure assets — having first invested $20 million when the company was called Delorean Power. Aiga Capital Partners added a credit facility of up to $40 million in July 2025, and KeyBanc $75 million of project finance in October.

Manufacturing — Castings and Forgings

[ 04 ]

The grant programme, and the capital

Arlington is where manufacturing communities elsewhere get their funding.

The Office of Local Defense Community Cooperation works from 2231 Crystal Drive and administers the Defense Manufacturing Community Support Program, which put $110 million into twenty-three designated communities between 2020 and 2023 to build up their industrial capacity and workforce.

The county's part in this sector is the grant-making end of it, and that is a substantial one. The designations have gone to communities around the country building up exactly the casting, forging and machining capacity the sector depends on.

There is a venture line into it too. Fabri, an investment-casting foundry that describes itself as “software-defined and technology-enabled by default,” is a Lavrock Ventures portfolio company — which puts a Ballston fund directly into the casting supply chain. Steel Atlas, which co-led the seed round of the Arlington-founded GenLogs, invests under the heading “Investing in Resilience” in “the software and hardware technologies re-shaping the industrial economy.”

Critical Chemicals

[ 08 ]

National representation

The specialty chemical industry is represented from Crystal Drive.

The Society of Chemical Manufacturers and Affiliates — the trade association for specialty and fine chemical producers, the constituency this sector is built around — works from 1400 Crystal Drive. The advocacy, standards work and policy engagement for the sector happen here, which is the pattern across several of these sectors.

Capital

Who funds it.

Two kinds of money show up in Arlington technology. The first is capital headquartered here, and almost all of it sits on one street: Lavrock at 4300 Wilson Boulevard, Marlinspike at 4201, FedTech at 4401, EJF at 2107, StoneMill at 1201, Sands Capital and RTX at 1000. Two of those funds invest almost entirely in national-security technology. The second kind is capital that arrives from somewhere else — the growth and venture funds that led the county's largest rounds of the last twelve months, none of them based nearby.

Both are worth reading against the eight sectors, because a fund's portfolio is a statement about where it thinks the industrial base is going. What follows quotes each firm's own description of what it backs, and names the companies it has actually backed. The sector tags are ours: we have placed each portfolio company against the sector its product serves, and where a company does not fit neatly we say so.

Capital headquartered in Arlington, with a defense or industrial thesis

Firm What it says it backs, and what it has backed Sectors Lavrock VenturesBallston · 4300 Wilson Blvd Early-stage investors at the intersection of national security and frontier technologies, with investments spanning advanced manufacturing, space, quantum technologies, and kinetic systems. Portfolio: Castelion and Aventra in strike and guided munitions, PteroDynamics in VTOL uncrewed aircraft, CesiumAstro in space communications, Maybell Quantum in dilution refrigerators, and Fabri, which runs an investment-casting foundry. 02 · 04
05 · 06 Marlinspike PartnersBallston · 4201 Wilson Blvd We invest in companies with pioneering technologies addressing national security needs and possessing massive commercial markets — across aerospace, AI and machine learning, autonomy and robotics, and cybersecurity. It closed an oversubscribed $127 million Fund II in July 2026, to back the companies rebuilding the industrial base and rearming the United States. 04 · 05
06 RTX VenturesRTX corporate HQ · 1000 Wilson Blvd The corporate venture arm of RTX, which names five areas: compute, advanced manufacturing, space, data, analytics and code, and propulsion. It is an investor in Ursa Major, which builds solid rocket motors and hypersonic propulsion, and in Forterra, which builds autonomous ground vehicles. 02 · 04
05 StoneMill VenturesRosslyn · 1201 Wilson Blvd Seed Stage Cyber Security Capital — the firm backs disruptive cyber security companies, primarily at the seed stage. Its portfolio includes Huntress and GreyNoise. 06
  • FedTech, 4401 Wilson Blvd — a fully integrated, equity-free deep tech commercialization platform. It builds companies around vetted federal-lab intellectual property and takes no equity in them.
  • Starburst National Landing Launchpad — an aerospace and defense accelerator announced by Arlington Economic Development on 31 March 2025, supported by a $200,000 grant from the Virginia Innovation Partnership Corporation's Regional Innovation Fund, for up to ten early-stage companies in its first year.
  • Virtus Innovation Center — a 40,000-square-foot dual-use hub in National Landing, launched in December 2024 by Alvarez & Marsal, Energy Innovation Capital, JBG SMITH and Virginia Tech. It plans an early-stage fund once that fund is raised.
  • Arlington Innovation Fund — the county's own Catalyst Grants, non-dilutive co-investment grants of $25,000 to $50,000. The first cohort, announced in February 2024, put $225,000 into five companies, GenLogs among them.
The county's two largest asset managers are bigger than everything above combined and invest elsewhere. Sands Capital, on Wilson Boulevard, held $50 billion in client assets at 30 June 2026, and its Global Ventures strategy names artificial intelligence, cybersecurity, healthcare technology and digital life. EJF Capital, further up the same street, reported about $6.0 billion in regulatory assets at the end of 2025 against a mandate in financials and real estate.

The fund next door

[ VC ]

Four of the eight sectors

One Ballston fund covers half the sector list on its own.

Lavrock Ventures works from 4300 Wilson Boulevard and describes itself as “early-stage investors at the intersection of national security and frontier technologies,” approaching venture “from the perspective of the national security ecosystem, with deep roots in the intelligence community.” It is a small fund by the standards of the names further down this page. Its portfolio is not.

Castelion builds long-range strike systems and Aventra makes guidance kits that turn unguided munitions into precision ones — sector 02. PteroDynamics builds autonomous VTOL aircraft that reach places without runways, and CesiumAstro supplies full-stack space communications — sectors 05 and 06. Maybell Quantum builds the dilution refrigerators that quantum processors have to run inside — sector 06 again.

The one that matters most for this page is Fabri. It is not a software company selling into foundries; it is a foundry, making investment castings and describing itself as “a foundry that is software-defined and technology-enabled by default.” Sector 04, castings and forgings, reaches Arlington through the fund that backs it.

The rounds, and who led them

Company The round, and the syndicate Sectors TwentyArlington · founded 2024 A $38 million Series A in November 2025 led by Caffeinated Capital with General Catalyst and In-Q-Tel, then a $100 million Series B in June 2026 at a $1 billion valuation led by Accel, then a further $30 million from Khosla Ventures in July 2026 at $1.2 billion. $168 million in two years. The product is cyber-warfare software. 06 AirRosslyn · 1735 N. Lynn Street A $150 million growth investment from Bain Capital announced 13 October 2025, alongside more than $100 million in annual recurring revenue and a $919 million government-wide supply-chain risk contract. Accel, Salesforce Ventures and Symphony Technology Group came in at the $20 million Series C in 2015. The company changed its name from Govini to Air in June 2026. 01 · 04 AuterionBallston · 4250 Fairfax Drive A $130 million Series B on 23 September 2025 led by Bessemer Venture Partners. $25 million of that total is non-dilutive, backed by the Office of Strategic Capital of the Department of War and provided by Rochefort. The $10 million seed in 2018 came from Lakestar, Mosaic, Costanoa and Tectonic. 05 Shift5Rosslyn · 1100 Wilson Blvd A $75 million Series C on 3 September 2025 led by Hedosophia, with Insight Partners, 645 Ventures, Booz Allen Ventures, Squadra, AE Industrial, Moore Strategic, Center 15, Disruptive, CSP Equity and Savano. Insight had led the $50 million Series B in 2022; Moore Strategic led a $33 million extension in 2023 that took total venture funding to $108 million. 05 · 06 GenLogsFounded in Arlington, 2023 A $60 million Series B on 3 February 2026 led by Battery Ventures, with IVP, Cathay Innovation, 9Yards, Venrock, Steel Atlas, HOF Capital, TitletownTech and Autotech Ventures, taking the total to $81 million. It was one of five companies in Arlington's first Catalyst Grant cohort in February 2024. 06 QuartermasterArlington A $43 million Series A reported in May 2026, co-led by First Round Capital and Quiet Capital, for software that coordinates uncrewed vessels as a single system. 05 Lightshift EnergyArlington $100 million from Greenbacker Capital Management in March 2024 — $20 million of growth equity and $80 million against infrastructure assets — following Greenbacker's $20 million investment in the company when it was Delorean Power. A credit facility of up to $40 million from Aiga Capital Partners followed in July 2025, and $75 million of project finance from KeyBanc in October 2025. 03
Sector tags are ours, not the investors'. Twenty's cyber-warfare software and GenLogs' roadside sensor network sit closest to sector 06 without being microelectronics in the literal sense. Quartermaster's round is reported rather than company-announced. And not every Arlington round is a defense one: Carecubes raised a $6.5 million Series A in March 2026 from Schooner Capital, Lifeforce Capital and CQuence Health for infectious-disease response.

The pattern

Arlington companies raise at the front of the national market.

Count the leads on the rounds above. Accel, Khosla, Bain Capital, Bessemer, Insight, Battery Ventures, First Round, Hedosophia, Greenbacker — the firms writing the largest cheques into Arlington are the firms writing the largest cheques anywhere, and none of them is based in the Washington region. Two of the syndicate names are close: Booz Allen Ventures in McLean, and Squadra Ventures, which works from Baltimore and from G Street in Washington. First In, which came into Shift5's Series A, publishes no office address at all.

That is a strong position rather than a weak one. A cluster funded only by its neighbours has a ceiling; these companies are competing for capital nationally and winning it, twice in the case of Twenty, which raised again a month after closing a round. The funds that are here — Lavrock and Marlinspike in Ballston, RTX Ventures and StoneMill in Rosslyn — are the early money, which is the money that decides which companies exist at all.

And one instrument sits here in a way it sits nowhere else. The Office of Strategic Capital works from the Pentagon, and the $25 million inside Auterion's Series B came through it. It is the same office behind the first loan to MP Materials in sector 01 and the $1.4 billion battery commitment in sector 03. Federal capital placed alongside private venture money in a single round is a recent invention, and Arlington is where it is administered from.

Outside investors who state an industrial or defense thesis

Investor Its own words Sectors Bessemer Venture PartnersLed Auterion's Series B Publishes a research roadmap titled Deep tech & Defense, arguing that commercialised scientific breakthroughs improve lives, build more sustainable businesses, and strengthen security and democratic resilience. 05 LakestarZurich · Auterion seed investor Closed Lakestar Resilience I at $300 million on 17 July 2026 for European defence and dual-use companies. Auterion is named in the fund's portfolio alongside Helsing, Isar Aerospace, ARX Robotics and Tekever. 05 Steel AtlasCo-led GenLogs' seed Investing in Resilience. The firm invests in the software and hardware technologies re-shaping the industrial economy. 04 · 06 First InShift5 Series A investor Describes itself as a security technology investor and names seven areas: advanced manufacturing, AI and data, communications and networking, cybersecurity, space systems, strategic systems and unmanned systems. 04 · 05
06 AE Industrial PartnersShift5 investor via AEI HorizonX AEI HorizonX is AE Industrial's venture group, formed in partnership with Boeing. It joined Shift5's Series B in July 2022, five months after the round was announced. 05 · 06 Booz Allen VenturesMcLean · Shift5 investor Tripled its venture commitment to $300 million in July 2025, the largest corporate venture programme in the regional consulting sector. 06 Office of Strategic Capital · RochefortThe federal instrument Rochefort Asset Management is a joint venture between Hayman Capital Management and Serengeti Asset Management, created to participate in the new Critical Technologies Initiative, the Office of Strategic Capital's programme with the Small Business Administration. It led a $290 million round into Divergent Technologies on 15 September 2025, contributing $120 million of it, for US defense manufacturing. 03 · 04
05
Quoted language is each firm's own; the sector tags are ours. Several of the largest investors in Arlington companies publish no defense thesis at all and invested anyway — Bain Capital Tech Opportunities, which put $150 million into Air, names application software, infrastructure and security, fintech and payments, and healthcare IT as its verticals.

The capital within half an hour, which is not in Arlington

Firm Its own words, and any confirmed Arlington investment Sectors In-Q-TelTysons · 1800 Tysons Blvd The non-profit strategic investor the intelligence and national-security community has used since 1999, describing its work as investing in global innovation to secure the nation across more than 800 investments. Its published practice areas run from space and microelectronics to energy, biotechnology, cyber and quantum. It came into Twenty's $38 million Series A in November 2025. Until at least 2010 its own registered address was 1000 Wilson Boulevard in Rosslyn — the building RTX now runs from. 03 · 05
06 Squadra VenturesBaltimore · Washington We invest in early-stage national security companies advancing the critical edge, with a growth-stage mindset at the seed stage. It was in Shift5's $20 million Series A in October 2021. 05 · 06 Booz Allen VenturesMcLean Backs startups building advanced technology and reindustrializing America, across AI, defense tech, deep tech, cybersecurity, and reindustrialization. It tripled its commitment to $300 million in July 2025 and is an investor in Shift5. 04 · 06 Razor's Edge VenturesReston · 1875 Explorer Street Investing at the intersection of national security and commercial enterprise — seventeen current holdings across cyber, space and defence hardware. 05 · 06 DataTribeFulton, Maryland · 8110 Maple Lawn Blvd We invest in, and co-build dominant companies focused on generational leaps in cybersecurity. Its portfolio leans Maryland — Dragos, Enveil, Attila. 06 Columbia CapitalAlexandria · 204 South Union Street We partner with entrepreneurs to build category-defining businesses, across enterprise technology, digital infrastructure and mobility. It backed Endgame, reported at the time as Clarendon-based, before Elastic acquired it in 2019. 06 Blue Delta Capital PartnersMcLean · 1751 Pinnacle Drive Exclusively focused on the U.S. federal government market, particularly companies providing technology-enabled solutions and services, offering patient, flexible, long-term capital as partners to our management teams, not owners. —
None of these firms publishes the locations of its portfolio companies, so this is a map of stated intent and driving distance rather than a claim about where the money has landed; where an Arlington investment is confirmed it is named. Blue Delta defines itself by market and stage rather than by technology, so no sector tag applies to it. And the name trap worth knowing: Arlington Capital Partners, which runs a large aerospace and defense practice, describes itself as Washington, D.C.-based.

The short answer

What is Arlington actually good at?

Software for things that move themselves, the research funding that sets national direction, sensing and onboard data, and a university pipeline that is currently beating the target the state set for it. Those four are where the county has both institutions and momentum, and three of the four have added capital or jobs in the last eighteen months.

The growing part is easy to name: software sold to a defense or logistics customer. Autonomy, cyber, supply-chain analytics, onboard data, fleet coordination — that is where the large rounds went. Two of those companies crossed a billion-dollar valuation inside the last ten months, and one of them is two years old.

The shape of it follows from the geography. A county wrapped around a Metro system, with the Pentagon inside it and Georgetown across Key Bridge, is a good place to run a company, fund a programme or teach a graduate seminar. Arlington has specialised accordingly, and the specialisation is paying: two Fortune 500 headquarters, two companies past a billion-dollar valuation, an autonomy company that crossed the Atlantic to be here, a computing building whose commercial space was about three-quarters committed by the time it opened, and a Ballston fund whose portfolio reaches into four of the eight sectors, including the one the county has no plants for.

Getting your bearings

The region shares a labour market and splits across four jurisdictions.

Northern Virginia's technology institutions sit close together and are easy to mix up, so it is worth knowing which is where. Virginia Tech's Innovation Campus — the graduate school that anchored the state's side of the Amazon deal, whose first academic building opened in January 2025 — is in the City of Alexandria at Potomac Yard. Both sides of that boundary market themselves as National Landing, which is where the confusion starts.

Virginia Tech also holds Arlington ground: the Research Center at 900 North Glebe Road in Ballston, 144,000 square feet, open since 2011. This guide has never stopped at the county line, and the people who work in these buildings do not either.

DARPA 675 N. Randolph Street, Ballston — six technical offices Arlington
Office of Naval Research · AFOSR 875 N. Randolph Street, one block north Arlington
Office of Strategic Capital In the Pentagon, which carries a Washington ZIP code and stands in Arlington Arlington
ATI — consortium manager 901 N. Stuart Street, Ballston Arlington
Fuse at Mason Square George Mason's School of Computing, Virginia Square Arlington
Virginia Tech Innovation Campus Potomac Yard — the graduate campus from the Amazon deal Alexandria
DLA Strategic Materials · USGS minerals Fort Belvoir and Reston — the stockpile and the data Fairfax
Data-centre alley 250+ facilities, 25 to 40 miles west Loudoun

Provenance

Every figure on this page came from one of these.

Where a source is dated, the date is given. The tech-talent degree figures come from the most recent published report, which covers production through FY2024. Anything announced but not yet completed is labelled as announced. The $632 million headline figure is the sum of the rounds named on this page between September 2025 and July 2026; it is not a claim to have found every round. Placing an investor or a portfolio company against a sector is our judgement, not the firm's — quoted language throughout is each firm's own. On In-Q-Tel's address, four sources look like they disagree and do not: its own About page says Tysons, its latest IRS Form 990 says McLean, and both describe 1800 Tysons Boulevard, which carries a McLean postal city. A 2024 release datelined Washington is a press-release convention, not an address. The Rosslyn address is from its own 2010 SEC filing.