# Investors based in Arlington (2026 list) > 139 investors based in Arlington, 11% active in the last 12 months. Led by In-Q-Tel, Washington Harbour Partners Lp, Sands Capital Management. Source: https://millionrounds.com/lists/investors-based-in-arlington (Millionrounds; every figure on the page links to its filing or article) [Investor Lists](https://millionrounds.com/lists) # Investors based in Arlington Updated 7 November 2026 Firms with an address in Arlington. A head office is a fact about the firm; where it invests is on its own page. [See all 139 *→*](https://millionrounds.com/login?join=1&next=%2Fapp%2Finvestor-lists%2Finvestors-based-in-arlington)The top 25 **139** investors on the list No change this week **94** cheques in 12 months *+73%* against the market **$19M** median round they joined *+141%* against the market median **11%** wrote a cheque in 12 months **6%** have led a round ## The Top 25 Ordered by cheques observed, never by anything anyone paid for Deploying now (14) - 1 [In-Q-Tel](https://millionrounds.com/fund/iqt) *Deploying now* Accelerator · United States **273** **$20M** median round **Nov 2026** last seen - 2 [Washington Harbour Partners Lp](https://millionrounds.com/fund/washington-harbour-partners-lp) *Deploying now* Private equity · United States **52** **$60M** median round **Nov 2026** last seen - 3 [Sands Capital Management](https://millionrounds.com/fund/sands-capital) *Deploying now* Growth equity · United States **18** **$740M** median round **Nov 2026** last seen - 4 [GEF Capital Partners](https://millionrounds.com/fund/gef-capital-partners) *Deploying now* Private equity · United States **7** **$66M** median round **Aug 2026** last seen - 5 [Lavrock Ventures](https://millionrounds.com/fund/lavrock-ventures) *Deploying now* VC firm · United States **6** **$12M** median round **May 2026** last seen - 6 [Amex Ventures](https://millionrounds.com/fund/amex-ventures) *Deploying now* Growth equity · United States **5** **$120M** median round **Nov 2026** last seen - 7 [DARPA](https://millionrounds.com/fund/darpa) *Deploying now* VC firm · United States **5** **$7.2M** median round **Oct 2026** last seen - 8 [Corporate Executive Board (CEB)](https://millionrounds.com/fund/corporate-executive-board-ceb) dormant Corporate VC · United States **4** **$3M** median round **Jul 2015** last seen - 9 [RTX Ventures](https://millionrounds.com/fund/rtx-ventures) *Deploying now* Growth equity · United States **4** **$125M** median round **Apr 2026** last seen - 10 [Graham Holdings](https://millionrounds.com/fund/graham-holdings) quiet VC firm · United States **3** **$20M** median round **Jun 2015** last seen - 11 [LNC Partners](https://millionrounds.com/fund/lnc-partners) *Deploying now* Private equity · United States **3** **$30M** median round **Oct 2026** last seen - 12 [Crystal Tech Fund](https://millionrounds.com/fund/crystal-tech-fund) quiet VC firm · United States **3** **$2M** median round **Nov 2014** last seen - 13 [America's Frontier Fund](https://millionrounds.com/fund/america-s-frontier-fund) *Deploying now* VC firm · United States **2** **$19M** median round **Jan 2026** last seen - 14 [Conservation International Ventures](https://millionrounds.com/fund/conservation-international-ventures) *Deploying now* VC firm · United States **2** **$2.5M** median round **Jun 2026** last seen - 15 [EJF Ventures](https://millionrounds.com/fund/ejf-ventures) *Deploying now* VC firm · United States **2** **$40M** median round **Aug 2026** last seen - 16 [Raytheon](https://millionrounds.com/fund/raytheon) quiet VC firm · United States **2** **$22M** median round **Mar 2005** last seen - 17 [AeroVironment](https://millionrounds.com/fund/aerovironment) quiet Government · United States **1** **$14M** median round **Feb 2002** last seen - 18 [Boeing HorizonX Ventures](https://millionrounds.com/fund/boeing) *Deploying now* Corporate VC · United States **1** **$300M** median round **Jul 2026** last seen - 19 [CRDF Global](https://millionrounds.com/fund/crdf-global) quiet VC firm · United States **1** **$10K** median round **Dec 2013** last seen - 20 [Capital Sports Ventures](https://millionrounds.com/fund/capital-sports-ven) quiet VC firm · United States **1** **$5M** median round **Jan 2015** last seen - 21 [D.R. Horton](https://millionrounds.com/fund/d-r-horton) *Deploying now* Corporate VC · United States **1** **$15M** median round **Sept 2026** last seen - 22 [DS Ventures](https://millionrounds.com/fund/ds-ventures) quiet VC firm · United States **1** **$10M** median round **Nov 2017** last seen - 23 [E2MC (Earth-to-Mars Capital)](https://millionrounds.com/fund/e2mc-earth-to-mars-capital) quiet VC firm · United States **1** **$4.3M** median round **Jul 2025** last seen - 24 [EJF Capital](https://millionrounds.com/fund/ejf-capital-lp) quiet Private equity · United States **1** **$17M** median round **Sept 2023** last seen - 25 [Excel Group](https://millionrounds.com/fund/excel-group-2) quiet Private equity · United States **1** **$12M** median round **Apr 2017** last seen **114 more on this list** All 139 are in the app, with filters for stage, sector and market. A free account shows 10 per search, Pro up to 1,000. [See the whole list *→*](https://millionrounds.com/login?join=1&next=%2Fapp%2Finvestor-lists%2Finvestors-based-in-arlington) ## The Newest Cheques Rounds this list's investors joined most recently - **6** Nov **[Ocient](https://millionrounds.com/company/ocient)** Series C · $100M *With* [In-Q-Tel](https://millionrounds.com/fund/iqt) - **5** Nov **[CesiumAstro](https://millionrounds.com/company/cesiumastro)** Series D+ · $730M *With* [Sands Capital Management](https://millionrounds.com/fund/sands-capital) - **3** Nov **[Traversal](https://millionrounds.com/company/traversal)** Series B · $120M *With* [Amex Ventures](https://millionrounds.com/fund/amex-ventures) - **2** Nov **[Pathfinder](https://millionrounds.com/company/pathfinder)** Series A · $12M *With* [Stand Together Ventures Lab](https://millionrounds.com/fund/stand-together-ventures-lab) - **2** Nov **[Northwood Space](https://millionrounds.com/company/northwood-space)** Series C · $375M *With* [In-Q-Tel](https://millionrounds.com/fund/iqt) - **30** Oct **[Baseten](https://millionrounds.com/company/baseten)** Other · $2B *Led by* [Sands Capital Management](https://millionrounds.com/fund/sands-capital) ## Stages This Year 91 rounds - Series B **19%** - Series A **15%** - Seed **12%** - Venture **11%** - Series C **11%** - Other **32%** ## What They Backed Sectors, last 12 months - AI **36** - Aerospace & Space **16** - Defence Tech **15** - Big Data & Analytics **10** - Cybersecurity **7** - Energy **7** ## Cheques by Quarter Led Joined 15 Q1 25 12 Q2 25 15 Q3 25 15 Q4 25 23 Q1 26 31 Q2 26 16 Q3 26 19 Q4 26 The last bar is the quarter still running. ## Lists Like This - [Investors based in London 4,496](https://millionrounds.com/lists/investors-based-in-london) - [Investors based in CA 3,746](https://millionrounds.com/lists/investors-based-in-ca) - [Investors based in NY 3,658](https://millionrounds.com/lists/investors-based-in-ny) - [Investors based in WA 2,473](https://millionrounds.com/lists/investors-based-in-wa) - [Investors based in San Francisco 2,377](https://millionrounds.com/lists/investors-based-in-san-francisco) - [Investors based in TX 2,250](https://millionrounds.com/lists/investors-based-in-tx) - [Investors based in Dubai 1,922](https://millionrounds.com/lists/investors-based-in-dubai) - [Investors based in Los Angeles 1,261](https://millionrounds.com/lists/investors-based-in-los-angeles) - [Investors based in Chicago 1,255](https://millionrounds.com/lists/investors-based-in-chicago) [All investor lists *→*](https://millionrounds.com/lists) ## Quick answers about investors based in Arlington ### Who are the most active investors based in Arlington? By cheques observed, the most active are In-Q-Tel, Washington Harbour Partners Lp, Sands Capital Management, GEF Capital Partners and Lavrock Ventures. ### How many investors based in Arlington are there? 139 are on record. 11% made an investment in the last 12 months and 6% have led a round. ### Which stages do investors based in Arlington back? Of the rounds with a named stage in the last 12 months, mostly Series B (24%) and Series A (20%). ### How big are the rounds investors based in Arlington join? The typical (median) round among the leading investors here is $17M. ### Which sectors do investors based in Arlington back most? In the last 12 months, mostly AI, Aerospace & Space and Defence Tech. ### Which investors based in Arlington lead the most rounds? Washington Harbour Partners Lp (9 led), GEF Capital Partners (7 led) and Sands Capital Management (4 led). ### What have investors based in Arlington invested in recently? Recent rounds include Ocient (Series C, Nov 2026, with In-Q-Tel), CesiumAstro (Series D+, Nov 2026, with Sands Capital Management) and Traversal (Series B, Nov 2026, with Amex Ventures). ### How is this list of investors based in Arlington ranked? By cheques observed, from the rounds and filings we watched, and never by anything anyone paid for. It is rebuilt every night. Built from the rounds we watched, refreshed every night. [How we count](https://millionrounds.com/methodology) · [Report a correction](https://millionrounds.com/corrections)