Nicola Sinclair
About Nicola Sinclair
Nicola Sinclair is a London-based angel investor and early-stage venture capitalist. Her LinkedIn profile lists her as Founder and General Partner of Twin Track Ventures since 2024, and says she studied at the University of Edinburgh. Vestbee describes her as a former Royal Air Force officer.
Allocator.one credits her with 20 years of defence sector experience, including setting up a venture capital arm for the UK Royal Air Force. LinkedIn lists her as Fund Manager of the Air Innovation Fund (2019 to 2021), Partner at Metrea (2022 to 2023) and Partner at Allied (2023 to 2024). She was a board observer at Wayland Additive (2022 to 2024) and has advised Cambium since 2022.
She co-founded the Quantum Investors Network (2023) and is a member of the UK Business Angels Association and European Women in VC. She writes on Medium about venture capital, dual-use and defence tech, and how teams work together.
Her public profiles describe her as an angel investor and VC focused on early-stage dual-use deep tech. A full list of her personal angel cheques is not public. Her LinkedIn also lists a board seat at Uplift360 since 2025.
Sinclair is named as a strategic angel investor in Outerlimit's $16M pre-seed round, announced in September 2026. AlbionVC, Evolution Equity Partners and Crane Venture Partners supplied the round. Outerlimit is building a decentralized security and authorization layer for agentic AI, which applies Zero Trust principles to the actions AI agents take. Its founders are Tony Pepper, Neil Larkins and Dr Peter Vincent.
The press coverage that names her describes her as a Twin Track Ventures partner. Her other AI-specific investments are not public.
Her stated focus is early-stage dual-use deep tech. Twin Track Ventures backs startups that serve both commercial and national security customers across NATO countries. Its areas include computing, communications, sensors and supply-chain resilience, including energy, materials and manufacturing. Vestbee lists the fund as pre-seed and seed, based in London.
These figures are for Twin Track Ventures, not her personal angel cheques. Vestbee gives a ticket size of £150k to £500k. Allocator.one gives £250K to £500K, a fund size of GBP 10 million, and plans for 15 to 20 startups. Her LinkedIn asks people to message her before connecting if they have not met.
- Outerlimit: security and authorization layer for agentic AI; she joined as an angel in the $16M pre-seed announced September 2026.
- Hadean: listed by Vestbee as a Twin Track Ventures portfolio company; investment year not stated.
- SE3 Labs: listed by Vestbee as a Twin Track Ventures portfolio company; investment year not stated.
- Oshen: listed by Vestbee as a Twin Track Ventures portfolio company; CB Insights shows Twin Track in a seed round in 2026.
- Uplift360: listed by Vestbee as a Twin Track Ventures portfolio company; she has been on its board since 2025 per LinkedIn.
- linkedin.com/in/nicola-sinclair-
- medium.com/@nicola.sinclair/about
- medium.com/@nicola.sinclair
- allocator.one/allocators/nicola-sinclair
- vestbee.com/insights/articles/europes-defence-and-dual-use-investors
- crunchbase.com/funding_round/outerlimit-pre-seed--235c1be3
- regtechanalyst.com/outerlimits-16m-pre-seed-bets-agents-cant-be-truste
- albion.vc/spotlight/news/outerlimit-raises-16m-in-pre-seed
Investing activity
Nicola Sinclair appears in 1 AI deal tracked by the Lounge deals desk, rounds totalling $16M. The rounds are mostly Pre-seed, with a median round size of $16M. The most recent is Outerlimit (Pre-seed, $16M, Sep 2026).
Nicola Sinclair most often invests alongside AlbionVC, Crane Venture Partners, Evolution Equity Partners and David Garfield, and the companies they back on Lounge are mostly in AI.
Deals
Frequently asked questions about Nicola Sinclair
Does Nicola Sinclair invest in AI startups?
Yes. She is named as an angel in Outerlimit's $16M pre-seed round for agentic AI security, announced in September 2026. Her stated focus is broader, covering early-stage dual-use deep tech.
What stage does Nicola Sinclair invest at?
Twin Track Ventures, the fund she leads, is listed as pre-seed and seed. Her Outerlimit angel investment was in a pre-seed round.
What is Nicola Sinclair's check size?
She has not published a personal angel check size. Twin Track Ventures is listed with tickets of £150k to £500k (Vestbee) or £250K to £500K (Allocator.one).
Where is Nicola Sinclair based?
She is based in London. Twin Track Ventures backs dual-use deep tech across NATO countries.
What is Nicola Sinclair's background?
She is a former Royal Air Force officer with about 20 years in the defence sector, and she set up a venture capital arm for the RAF. She was Fund Manager of the Air Innovation Fund and now runs Twin Track Ventures.
How should founders approach Nicola Sinclair?
Her LinkedIn profile asks people to message her before connecting if you have not met. She also writes on Medium about how she meets founders and makes decisions.
Is Nicola Sinclair an angel investor?
Yes. Nicola Sinclair invests personally as an angel.
What AI companies has Nicola Sinclair invested in?
Nicola Sinclair's AI investments include Outerlimit. The 1 round on Lounge are listed on this page with amounts, dates and co-investors.
Who does Nicola Sinclair co-invest with?
Nicola Sinclair's most frequent co-investors on Lounge are AlbionVC (1 deal), Crane Venture Partners (1 deal), Evolution Equity Partners (1 deal), David Garfield (1 deal) and Manish Madhvani (1 deal).
How can founders reach Nicola Sinclair?
Founders on Lounge can see Nicola Sinclair's contact details in AI Investor Contacts (paid plans), check for a warm introduction through members who worked with them under Warm Paths, and add Nicola Sinclair to their Investor Pipeline to track the conversation.