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Tom Blomfield

Tom Blomfield

YC Group Partner. Co‑founder of Monzo and GoCardless.

tomblomfield
San Francisco, California
Joined September 2025
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Network

67.6K connections
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Summary

Serial fintech founder and product-led builder: Tom co‑founded GoCardless (payments) and later Monzo (challenger bank), and during his time at Monzo led product, community and growth efforts that scaled the company from a prepaid‑card experiment into a large, consumer-facing bank with millions of users. wikipedia+2
Investor / mentor at Y Combinator: after founding two large fintech companies, Tom joined YC as a visiting partner (from 2021) and then as a full Group Partner (2023–present), where he focuses on advising early-stage founders, running office hours and supporting YC batches. ycombinator+1
Public on leadership and mental health: Blomfield has spoken candidly about the personal toll of scaling Monzo during the pandemic, describing anxiety and the reasons behind stepping back from day-to-day leadership responsibilities. theguardian+1
Writer and hands‑on builder experimenting with AI and personal projects: Tom publishes essays on his personal site, builds side projects (e.g., RecipeNinja.ai), and writes about technology, productivity and AI; his 2025 AI recipe project attracted media attention and debate. tomblomfield+1

Work

Education

Projects

Writing

The Age Of Abundance

April 1, 2025

Personal essay on technological progress, AI and societal impacts, published on his personal blog.

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Taking Risk

May 17, 2024

Personal essay about risk-taking, entrepreneurship and teaching/mentoring experiences.

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How I Created Two Billion-Dollar Fintech Startups (talk/essay)

January 1, 2024

A long-form talk/essay (YC/YouTube/guest posts) where Blomfield describes founding GoCardless and Monzo and lessons learned building fintech startups.

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Hobbies

Pottery wikipedia

Travel (has travelled in East Africa) and singing; early hobby programming wikipedia

Notes

IBIlariia Belovasaid
TBTom Blomfield
's involvement with Y Combinator has made a notable positive impact on startups or founders they've worked with.

Dec 5, 2025

GRGirish Radhakrishnansaid they've worked with
TBTom Blomfield
while they were at Y Combinator and found their support for founders especially valuable.

Nov 25, 2025

GRGirish Radhakrishnansaid they consider
TBTom Blomfield
to be a go-to angel investor for early-stage YC companies.

Nov 20, 2025

RMRabii Maliksaid that if they wanted to learn about launching a startup through Y Combinator,
TBTom Blomfield
would be at the top of their list to talk to.

Nov 6, 2025

GLGabriel Loblsaid that if they wanted to learn about launching a startup through Y Combinator,
TBTom Blomfield
would be at the top of their list to talk to.

Oct 24, 2025

EMEdoardo Maschiosaid
TBTom Blomfield
is one of the most impressive founders they've seen come out of Y Combinator.

Oct 23, 2025

PBPhelim Bradleysaid that if they wanted to learn about launching a startup through Y Combinator,
TBTom Blomfield
would be at the top of their list to talk to.

Oct 23, 2025

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