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Julian Weisser

Julian Weisser

Entrepreneur, investor, and community builder empowering founders

San Francisco, California
Joined March 2025

Network

4.8K connections
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Summary

Julian Weisser is a highly active and influential figure in the startup ecosystem, particularly focused on supporting founders. As the Co-Founder and CEO of ODF (On Deck), he has been instrumental in launching over 1,000 startups and helping them raise over $2 billion. He further extends this support through his new venture, Solo Founders, a dedicated program for independent builders. undefeatedunderdogs+2
Beyond direct startup acceleration, Julian is an active angel investor through 'Other Ventures' and 'Kepler Operator's Fund', having backed over 50 startups. His portfolio includes notable companies like MagicSchool, Roots, Oversee, Motion, Astroforge, Loyal, Levels, Primer, Wander, and Function Health, demonstrating a broad interest in impactful and innovative ideas. nfx+1
Julian is a prolific content creator, sharing his insights and strategies with the startup community. He authors two popular Substacks, 'Texts with Founders' and 'Weisser's Multitudes', and hosts 'The Deep End' podcast, engaging in in-depth conversations with industry leaders. He also created 'Merge Club' to support microgrant recipients. substack+3
With a unique background in Music and Management from Berklee College of Music, Julian brings a distinctive perspective to entrepreneurship. He applies his creative and organizational skills to various community-building initiatives, such as 'Builders Who Run SF', a casual running club for founders, and 'Stamp List', a project assisting visa-sponsored job applicants. undefeatedunderdogs+3

Work

Education

Projects

Hobbies

He is a musician and has a background in music. undefeatedunderdogs+1

He co-hosts 'Builders Who Run SF', a casual running club for builders in San Francisco, with runs also organized in other major cities. weisser+2

Notes

AMAniket Mauryasaid
JWJulian Weisser
is one of the most impressive VCs they've seen investing in AI.

Mar 13, 2026

ASAlexis Sanz Fargeassaid
JWJulian Weisser
is one of the most impressive ODF fellows they've seen start something new in the last six months.

Feb 25, 2026

ADAri Dutilhsaid they've seen
JWJulian Weisser
make a significant impact both as a founder and as an investor.

Feb 24, 2026

ADAri Dutilhsaid that if someone needed advice on raising a pre-seed round as a founder,
JWJulian Weisser
would be among their first recommendations.

Feb 24, 2026

AGAditya Gayakwadsaid
JWJulian Weisser
is one of the most impressive founders they know based on their leadership and vision.

Jan 27, 2026

ASAlexis Sanz Fargeassaid they've seen
JWJulian Weisser
make consistently strong investments in enterprise software or SaaS, especially related to AI.

Jan 26, 2026

RARahul Arulkumaransaid
JWJulian Weisser
is an angel investor who actively champions non-traditional founders.

Jan 21, 2026

AGAditya Gayakwadsaid
JWJulian Weisser
is someone they've seen start a promising new company as a solo founder within the last year.

Jan 7, 2026

SHSam Huleattsaid
JWJulian Weisser
has impressed them with their excitement for startups and passion for writing online.

Nov 11, 2025

THTom Hussonsaid
JWJulian Weisser
has made a real, positive difference for founders of companies whose products are widely used by schools, cities, or government agencies.

Nov 10, 2025

CWChih-Hsuan Wusaid
JWJulian Weisser
is someone they'd bet on as they start their latest stealth company.

Oct 24, 2025

THTom Hussonsaid they've seen
JWJulian Weisser
launch a new stealth venture in the past few months in a way that stood out to them.

Oct 23, 2025

CWChih-Hsuan Wusaid
JWJulian Weisser
is one of the most thoughtful seed stage investors they know.

Oct 22, 2025

VTVishal Tsaid that if they were advising a new founder, they would trust
JWJulian Weisser
as a first investor or advisor.

Oct 9, 2025

ADAri Dutilhsaid that if they were advising a new founder, they would trust
JWJulian Weisser
as a first investor or advisor.

Oct 9, 2025

ADAri Dutilhsaid that if they were raising a pre-seed round,
JWJulian Weisser
would be among their top choices to have on their cap table.

Aug 21, 2025

ADAri Dutilhsaid
JWJulian Weisser
is one of the sharpest early-stage investors they've seen in AI-driven media startups.

Aug 21, 2025

JTJohn Taylor Garnersaid that if they were raising a pre-seed round,
JWJulian Weisser
would be among their top choices to have on their cap table.

Aug 7, 2025

CHCharles Hudsonsaid
JWJulian Weisser
is one of the most thoughtful pre-seed investors they know in the consumer space.

Jul 21, 2025

ADAri Dutilhsaid they've seen
JWJulian Weisser
actively invest personal capital in promising early-stage startups.

Jul 2, 2025

ADAri Dutilhsaid they've seen
JWJulian Weisser
do an outstanding job running an incubator or hacker house.

Jul 2, 2025