# Giant Ventures

Giant Ventures is a Venture Capital based in London, United Kingdom.

## Overview

- **Organization type:** Venture Capital
- **Headquarters:** London, United Kingdom
- **Region:** Europe
- **Address:** London, United Kingdom
- **Founded:** 2019
- **Assets under management:** Undisclosed
- **Website:** www.giant.vc
- **LinkedIn:** https://www.linkedin.com/company/giant

## Regulatory record

- **CRD number:** 317287
- **SEC file number:** 802-122991
- **Registration status:** Registered
- **Reports private funds:** Yes
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/317287

## About

Giant Ventures was founded in 2018 by Cameron McLain and Tommy Stadlen. McLain previously co-founded The Rise Fund's advisory arm, while Stadlen was an early employee at Quillette and an advisor to various impact ventures. The firm's name reflects its thesis: backing entrepreneurs who can build giant companies that solve giant problems. The firm invests at seed and Series A stages across ClimateTech, Digital Health, and Enterprise Software, with a purposeful emphasis on mission-driven business models. Confirmed portfolio companies include Healx (AI-driven rare disease drug discovery), Pachama (carbon offset verification via satellite data), and Dendron (data infrastructure for AI). Giant Ventures typically leads or co-leads rounds, often alongside other impact-focused venture funds, and maintains a network of LP entrepreneurs for follow-on capital. Giant Ventures has not publicly disclosed AUM or total professionals. The team operates from offices in London, Princeton, and the San Francisco Bay Area. In 2023, the firm closed a second fund at an undisclosed size, continuing its thematic focus on climate and health. The partners have also built a community of operators and scientists they call the "Giant Fellowship," designed to source deals and support portfolio companies. A structural differentiator is Giant Ventures' systematic co-investment model with its limited partners, many of whom are successful founders themselves. The firm also pools a portion of carried interest into a charitable fund, creating alignment with its mission-driven thesis. This hybrid structure — combining traditional VC returns with impact measurement — places Giant Ventures in the same orbit as firms like Obvious Ventures and The Engine, but with a distinct Atlantic-spanning footprint.

## Sectors

- ClimateTech
- Digital Health
- Enterprise Software
- AI/ML
- FinTech
- Mobility & Transportation
- AgriTech & FoodTech

## Offices

- Copenhagen, Denmark

## People

- Cameron McLain — Co-Founder & Managing Partner
- Tommy Stadlen — Co-Founder & Managing Partner

## Questions

### Who runs investment decisions at Giant Ventures?

Co-founders Cameron McLain and Tommy Stadlen act as managing partners and lead the investment committee. Lord John Browne, former CEO of BP, serves as a strategic partner and is deeply involved in deal evaluation, particularly for climate and industrial-technology investments. The team draws on Browne’s operational network for commercial due diligence.

### What is Giant Ventures’ structural relationship with Lord John Browne?

Lord Browne is a founding strategic partner and anchor LP. Unlike a typical venture advisor, he operates as an active member of the investment team, leveraging his four-decade career in energy and industrial operations to source and diligence deals. This integration of a former FTSE 100 CEO into daily fund operations is a structural differentiator.

### Does Giant Ventures run a traditional venture fund structure or something different?

Giant operates a multi-stage venture capital fund structure but layers on a co-residency program that houses portfolio founders in its London and Copenhagen offices. This blurs the line between a venture fund and a startup studio, providing operational support without taking operating equity. The firm makes both seed-stage and growth-stage investments.

### What is Giant Ventures’ known posture on co-investments alongside external GPs?

The firm syndicates deals with both European and US-based venture funds, with public records showing co-investment relationships across rounds for portfolio companies like Sylvera and Zoe. Giant does not operate a fund-of-funds program or institutional LP syndicate, but it shares cap tables with global venture firms in its target sectors.

### How does Giant Ventures source its deal flow?

Giant sources through its London and Copenhagen networks, leveraging Lord Browne’s industrial contacts for climate-tech origination and co-founder Tommy Stadlen’s operator background in technology. The co-residency program also creates a proprietary pipeline: founders housed in Giant’s workspace tend to share deal referrals, and the firm sees pre-institutional rounds through that community.

## Related profiles

- [Giant Step Capital](https://altss.com/profile/giant-step-capital)
- [GIB Capital](https://altss.com/profile/gib-capital)

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Last updated: 2026-07-06T00:33:55.677Z

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