Tower Research Ventures
About Tower Research Ventures
Tower Research Ventures is the venture arm of Tower Research Capital, a quantitative trading firm founded in 1998 and based in New York. Wikipedia lists Mark Gorton and Alistair Brown as the parent's founders. PitchBook counts four professionals at the venture arm and says the parent employs about 1,200 people across more than a dozen offices. The date the venture arm launched is not public, and the sources reviewed do not name the partners who lead its AI investing.
The firm lists AI/ML among its focus areas, alongside deep tech, crypto/web3, fintech and developer infrastructure. Its portfolio includes Assembli, which the firm describes as an AI-native workflow automation product for residential preconstruction, publicly launched after its investment. In February 2026 it led Guard Owl's $3M seed round alongside Pear Ventures; Guard Owl applies AI to physical security operations. It also led the pre-seed round of Procurement Sciences AI, and Battery Ventures later led that company's Series A.
The firm invests at incubation, pre-seed and seed stages, according to its profile on f4.fund and its own site. f4.fund lists a check size range of $250K to $3M. The firm has not published fund sizes, and no fund names or vintages appear in the public sources reviewed.
- Guard Owl: AI-driven transparency and automation for physical security teams; $3M seed round in February 2026, led alongside Pear Ventures
- Assembli: AI-native end-to-end workflow automation for residential preconstruction; public launch announced on the firm's site
- Procurement Sciences AI: business software company; Tower Research Ventures led its pre-seed round, and Battery Ventures led its Series A
- tower-research.com/ventures
- f4.fund/firms/tower-research-ventures
- pitchbook.com/profiles/investor/94239-10
- pitchbook.com/profiles/company/865003-78
- x.com/TowerVentures
- linkedin.com/company/tower-research-capital
- tower-research.com/introducing-assembli-a-tower-research-ventures-port
- en.wikipedia.org/wiki/Tower_Research_Capital
Investing activity
Tower Research Ventures appears in 1 AI deal tracked by the AI Lounge deals desk, and led 1 of them. The rounds are mostly Seed, with a median round size of $3M. The most recent is Guard Owl (Seed, $3M, Jan 2026).
Deals
Frequently asked questions about Tower Research Ventures
Who founded Tower Research Ventures?
Tower Research Ventures is the venture arm of Tower Research Capital, which was founded in 1998 by Mark Gorton and Alistair Brown. The date the venture arm itself was set up is not public.
Does Tower Research Ventures invest in AI startups?
Yes. It lists AI/ML as a focus area and led Guard Owl's $3M seed round in February 2026, an AI company focused on physical security. Its portfolio also includes Assembli, an AI-native workflow automation product.
What check size does Tower Research Ventures write?
The f4.fund directory lists a range of $250K to $3M. The firm has not published its own check sizes.
What stages does Tower Research Ventures invest in?
The firm invests at incubation, pre-seed and seed stages. It works with founders early, before a company is ready for a larger round.
Do founders need a warm introduction to pitch Tower Research Ventures?
A f4.fund listing says a warm introduction is not required. Founders should confirm the current process on the firm's website before submitting.
What AI companies has Tower Research Ventures invested in?
Tower Research Ventures's AI investments include Guard Owl. The 1 round on AI Lounge are listed on this page with amounts, dates and co-investors.
Where is Tower Research Ventures based?
Tower Research Ventures is based in New York, United States.
What stage does Tower Research Ventures invest at?
In the rounds tracked on AI Lounge, Tower Research Ventures has invested at Seed, with a median round of $3M. Tower Research Ventures led 1 of those rounds.
How can founders reach Tower Research Ventures?
Founders on AI Lounge can see Tower Research Ventures's contact details in AI Investor Contacts (paid plans), check for a warm introduction through members who worked with the firm under Warm Paths, and add Tower Research Ventures to their Investor Pipeline to track the conversation.