Team

Sweeping the floors like co-founders

 


Dan Von Kohorn

Managing Partner

Dan has been a founder or co-founder 14 times, and participated in 35 tech startups resulting in 10 exits totaling $900m+ in enterprise value prior to Broom Ventures. Sold companies include an online IP exchange, a financial data provider, an online education service, and most recently a data pipeline company co-founded with Jeff.

Dan began his career in the Applied Research Group at JP Morgan Investments and built software for 9 years at a hedge fund. He has worked on management of more than $4.3B over a career in investment management and venture capital.

In public service, Dan volunteered with the US Secret Service NY Electronic Crimes Task Force (2002 – 2009) and founded the EEA’s Oracle Working Group and Trusted Compute Task Force (2019).

Dan has a passion for nature, and restores and manages Massachusetts native forests. He received his A.B. in Economics and Certificate in Applied and Computational Mathematics from Princeton University.


Jeff Rosen

Managing Partner

Jeff is an experienced entrepreneur, COO, and software engineer. Previously, he was co-founder and COO of Rhombus, a data pipeline company that securely delivered real-world data to decentralized applications, acquired by Chainlink.

Before that, he was a Senior Software Engineer at a variety of San Francisco Bay Area startups, where he built financial exchange systems for private company shareholders, invoice management software for restaurants, and injury prevention technology for professional athletes and Navy SEALs.

Jeff has a passion for education and math. After college, he taught in a high school in inner-city Oakland, where he founded “Panthers Go to College” and raised a fund to take his students on college visits across the country.

Jeff received his B.A. with Distinction in Mathematics and Philosophy from Yale University, where he was awarded the Benjamin F. Barge Prize in Mathematics and Clarence W. Mendell Prize for his original research.

Getting it done together