PROOF stands for the Pro Rata Opportunity Fund. We invest strategic capital alongside select early stage VC firms, to maximize upside in their best performing companies. Venture capital firms investing in early stage companies typically negotiate ‘pro-rata investment rights,’ allowing them to maintain ownership in subsequent rounds of funding as they grow. Since early stage VCs invest across a broad swath of portfolio companies, over time, they inevitably run out of capital to maintain their pro-rata ownership in their best performing companies. When pro-rata is surrendered, board seats and the right to invest in future rounds are at stake. Through our investments, we allow our network partner VCs to maintain their influence on the board, preserve their position in the cap table and optimize returns in companies experiencing meteoric growth.
Looking for a particular PROOF employee's phone or email?
The PROOF annual revenue was $5.8 million in 2026.
John Burke is the Managing Partner of PROOF.
16 people are employed at PROOF.
PROOF is based in Reston, Virginia.
The NAICS codes for PROOF are [52, 5239, 523].
The SIC codes for PROOF are [679, 67].