Fundraising Fox
Find your path to Justin
Sign up to see every warm intro you have to Justin
- Paths you didn't know you had: your email and LinkedIn already hold routes to Justin. We find them for you
- 2nd- and 3rd-degree connections: the friend-of-a-friend routes that take hours to manually find through your inbox or LinkedIn
- Answers now, not in days: momentum is everything in a raise. Skip asking around whether someone knows someone
Days of research, done the moment you sign in, with every route ranked by how warm it is.
About
Co-founder of Den, which develops AI agents that learn from user conversations to handle communications on behalf of their owners via text or phone.
Founder at DenYC X25
Intro paths
Justin went through Y Combinator (Spring 2025) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Tom Blomfield, Monzo and GoCardless co-founder; Y Combinator partner on leave and Anthropic compute-team member. — the partner who ran Den's batch and knows the company first-hand. YC profile ↗
In turn, Justin can intro founders to Den's investors below.
Den's investors · 7
.png)
Co-founders at Den
Frequently asked questions
- Who is Justin Lee?
- Co-founder of Den, which develops AI agents that learn from user conversations to handle communications on behalf of their owners via text or phone.
- Where does Justin Lee work?
- Justin Lee is Founder of Den.
- What companies did Justin Lee found?
- Justin Lee founded Den.
Founder mafias
Y Combinator mafia10,594
Also came through, then founded or led a company.
University of Melbourne mafia135
Also came through, then founded or led a company.
Atlassian mafia59
Also came through, then founded or led a company.
Lyrebird Health mafia2
Also came through, then founded or led a company.
St Leonard's College mafia2
Also came through, then founded or led a company.
About this profile. Compiled from public sources — Den's own website and public professional profiles — and summarised by Fundraising Fox; every fact is kept with where it came from. Spotted an error, or would rather not be listed? Email privacy@fundraisingfox.com · How we build profiles · Your rights