Mathilde Collin
About Mathilde Collin
Mathilde Collin co-founded Front in 2013 and ran it as CEO until October 2024. Front is a customer service platform with AI-powered support tools. It went through Y Combinator in the Summer 2014 batch. Its $65M Series D in 2022 doubled its valuation to $1.7B.
She moved into the Executive Chair role in 2024, and Dan O'Connell of Dialpad became CEO. Before Front, Crunchbase lists her as a project manager at Concord and a commercial manager at Shopcade.
After stepping down as CEO she took a year off. In a post on X she said she now works full time on KORA, a nonprofit, open-source benchmark and public leaderboard that rates how safe LLMs are for children and teens.
Public databases count roughly 45 to 47 investments, depending on the source: PitchBook lists 45, Tracxn 46 and Crunchbase 47. Tracxn lists Mercury and Loom among her most notable investments, and names Loom, Ai Palette, Search Light and Jumbo as exits. Tracxn says her portfolio is concentrated in enterprise applications and enterprise infrastructure, in the United States and France.
Multifactor is a post-quantum security platform for online account access by people and AI agents. It announced a $15M seed round on December 4, 2025, led by Nexus Venture Partners. Collin took part as an angel alongside Y Combinator and other funds.
PitchBook also lists these investments:
- LlamaIndex (seed, May 2023)
- Dust (seed, June 2023)
- Wordware (October 2024)
- formal.ai (November 2024)
- Double (December 2024)
- Vybe (seed, December 2025)
Crunchbase and Tracxn also record a Double Series A in December 2025.
AngelMatch lists seed, early-stage venture and late-stage venture as her stages. Her listed markets are services, product design, IT and market research. Her recorded deals are mostly software, covering developer tools, productivity software and security. She has no public check size or stated investment thesis that we found.
- Multifactor: post-quantum security for human and AI agent access to online accounts; $15M seed announced December 2025.
- LlamaIndex: seed investment listed by PitchBook, May 2023.
- Dust: seed investment listed by PitchBook, June 2023.
- Wordware: investment listed by PitchBook, October 2024.
- Double: Series A recorded by Crunchbase and Tracxn, December 2025.
- Vybe: seed round listed by PitchBook, December 2025.
- Loom: listed by Tracxn as an exit and one of her most notable investments.
- Mercury: listed by Tracxn as one of her most notable investments.
- pitchbook.com/profiles/investor/184160-08
- crunchbase.com/person/mathilde-collin
- tracxn.com/d/people/mathilde-collin/__dMzMeWJBrDDbpo1RRdJ5M0Ugd4756yIP
- finance.yahoo.com/news/yc-f25-startup-multifactor-raises-191400793.htm
- finsmes.com/2025/12/multifactor-raises-15m-in-seed-funding.html
- x.com/collinmathilde/status/2009009173787476150
- x.com/collinmathilde?lang=en
- linkedin.com/posts/mathilde-collin-bb59492a_mathilde-collin-built-a-17
Investing activity
Mathilde Collin appears in 1 AI deal tracked by the Lounge deals desk, rounds totalling $15M. The rounds are mostly Seed, with a median round size of $15M. The most recent is Multifactor (Seed, $15M, Jul 2026).
Mathilde Collin most often invests alongside Nexus Venture Partners, Padma Warrior, Gokul Rajaram and Liquid 2 Ventures, and the companies they back on Lounge are mostly in AI.
Deals
Frequently asked questions about Mathilde Collin
Who is Mathilde Collin?
She is co-founder and Executive Chair of Front, which she led as CEO from 2013 to 2024. She is also an angel investor based in San Francisco.
Has Mathilde Collin invested in AI startups?
Yes. She was an angel in Multifactor's $15M seed round, announced in December 2025. PitchBook also lists LlamaIndex, Dust, Wordware and formal.ai among her investments.
What stage does Mathilde Collin invest in?
AngelMatch lists seed, early-stage venture and late-stage venture. Her recorded deals include several seed rounds and a Series A.
What is Mathilde Collin's check size?
No check size is public. Databases report round sizes, but not her individual amounts.
How many companies has Mathilde Collin invested in?
The count varies by database: 45 on PitchBook, 46 on Tracxn and 47 on Crunchbase.
What is Mathilde Collin working on now?
She says she works full time on KORA, a nonprofit benchmark that evaluates how safe LLMs are for children and teens. She remains Executive Chair of Front.
Is Mathilde Collin an angel investor?
Yes. Mathilde Collin invests personally as an angel.
What AI companies has Mathilde Collin invested in?
Mathilde Collin's AI investments include Multifactor. The 1 round on Lounge are listed on this page with amounts, dates and co-investors.
What stage does Mathilde Collin invest at?
In the rounds tracked on Lounge, Mathilde Collin has invested at Seed, with a median round of $15M.
Who does Mathilde Collin co-invest with?
Mathilde Collin's most frequent co-investors on Lounge are Nexus Venture Partners (1 deal), Padma Warrior (1 deal), Gokul Rajaram (1 deal), Liquid 2 Ventures (1 deal) and Flex Capital (1 deal).