Diede van Lamoen
About Diede van Lamoen
Diede van Lamoen is a serial founder, startup executive and investor. According to a bio on the Amulet site, he founded Groupon China, MyLuxBox and Commure. He holds a Bachelor's degree in Computer Science and Economics from Dartmouth College.
He was an early executive at Stripe and led its international expansion. The same bio says that took the company to 25 markets across Asia, Europe and Latin America. Yahoo Finance describes him as Stripe's head of international from 2013 to 2016.
General Catalyst's Quentin Clark wrote that van Lamoen joined Commure as an early co-founder and builder. Commure is a healthcare technology platform with ambient AI clinical documentation and revenue cycle automation. Yahoo Finance also reports that he co-founded Lemma, a fintech for healthcare practices. He is managing partner of Go Global Ventures in San Francisco. A LinkedIn post by Gabriella Giglio says he helped launch Responsible Innovation Labs with her and Jon Zieger.
Public databases list roughly six to seven personal investments, and the counts differ by source. Tracxn dates his start in startup investing to 2021, with the Pento Series A. Pento was his one recorded portfolio exit, in February 2024 per CB Insights.
Later recorded rounds include Fintoc (Series A, April 2024), Amulet (Series A, August 2024), Nolla Health (seed, September 2025), Radial (Series A, December 2025) and Laurence (seed, May 2026). Some of these are listed under Go Global Ventures rather than as personal angel checks.
On the Lounge deals desk, he is recorded in the Proximal seed of $15M, dated 2026-09. Sacra reports General Catalyst led the round at a $300M valuation, with SV Angel, Chemistry and several angels also taking part. Sacra lists him as "of Go Global Ventures".
Proximal is a San Francisco research lab that builds coding reinforcement learning environments and post-training data for frontier labs and enterprises. Radial and Nolla Health are also in his recent record. The sources reviewed do not describe what Radial does.
Data aggregators list him as backing seed and Series A rounds. The sectors named are fintech, SaaS, accounting and enterprise applications, with healthcare companies such as Amulet and Nolla Health also in his record. Tracxn lists the United States and United Kingdom as his main geographies. Other trackers also show a Chile-based fintech (Fintoc). His check size and any stated investment criteria are not public.
- Proximal: research lab for coding RL environments and post-training data; seed round announced September 2026.
- Radial: Series A in December 2025 with General Catalyst and BoxGroup.
- Nolla Health: seed round in September 2025.
- Amulet: Series A in August 2024.
- Fintoc: Series A in April 2024.
- Pento: Series A in May 2021; his one recorded exit, in February 2024.
- Laurence: seed round in May 2026, per CB Insights.
- sacra.com/c/proximal
- rl-list.com/vendors/proximal
- recentfunding.com/companies/proximal
- crunchbase.com/person/diede-van-lamoen
- cbinsights.com/investor/diede-van-lamoen
- tracxn.com/d/people/diede-van-lamoen/__jlyH9SKdTEEMOq8PPIKO7q58iv3HClX
- allergyamulet.com/diede-van-lamoen
- linkedin.com/pulse/commure-longer-stealth-quentin-clark
Investing activity
Diede van Lamoen 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 Proximal (Seed, $15M, Sep 2026).
Diede van Lamoen most often invests alongside General Catalyst, Liam Fedus, SV Angel and Chemistry, and the companies they back on Lounge are mostly in AI.
Deals
Frequently asked questions about Diede van Lamoen
Who is Diede van Lamoen?
He is a serial founder and managing partner at Go Global Ventures in San Francisco. He founded Groupon China and Commure and was an early Stripe executive who led its international expansion.
Did Diede van Lamoen invest in Proximal?
Yes. He took part in Proximal's $15M seed round, announced in September 2026 and led by General Catalyst. Sacra lists him as of Go Global Ventures.
What stage does Diede van Lamoen invest in?
His recorded deals are mostly seed and Series A rounds. He has not published a formal thesis.
What is Diede van Lamoen's check size?
His check size is not public. Databases show round sizes, not his own cheque, so founders should ask him directly.
What sectors does Diede van Lamoen back?
His record covers fintech, SaaS, accounting, healthcare and AI. Recent AI-related deals include Proximal, and he co-founded the healthcare AI company Commure.
Is Diede van Lamoen a good fit for a healthcare or fintech AI startup?
His operating background fits both areas. He built Commure and Lemma in healthcare and was an early Stripe executive in payments. He has also invested in Amulet, Nolla Health and Fintoc.
Is Diede van Lamoen an angel investor?
Yes. Diede van Lamoen invests personally as an angel.
What AI companies has Diede van Lamoen invested in?
Diede van Lamoen's AI investments include Proximal. The 1 round on Lounge are listed on this page with amounts, dates and co-investors.
What stage does Diede van Lamoen invest at?
In the rounds tracked on Lounge, Diede van Lamoen has invested at Seed, with a median round of $15M.
Who does Diede van Lamoen co-invest with?
Diede van Lamoen's most frequent co-investors on Lounge are General Catalyst (1 deal), Liam Fedus (1 deal), SV Angel (1 deal), Chemistry (1 deal) and Go Global Ventures (1 deal).