Quartet Ventures

The three directors — Sam Linz, Mark Rohald and Robert Gavshon — collectively make investment decisions. The firm states they have built, scaled and exited multiple businesses and contribute their operational experience to each deal through active board participation. No other investment committee members or external delegates are publicly named.

Quartet operates as a private equity specialist that invests the directors' own capital, which gives it some characteristics of a single-family office. However, it does not brand itself as a family office and does not disclose the underlying wealth source. It functions as a direct co-investment vehicle, not a regulated venture capital fund, and does not accept outside limited partner commitments.

Quartet only pursues direct co-investments. It states that it does not operate as a passive investor and aims to take minority positions where it can add value through active board involvement. There is no indication that it makes commitments to external venture capital or private equity funds.

Quartet targets expansion-stage and later-stage enterprises. Its published criteria require current or near-term EBITDA between $1.0 million and $10 million and explicitly rule out early-stage, non-profitable startups. The firm invests for the long term and does not use the venture capital model of staged seed-to-growth rounds.

The firm publicly states it will not invest in mature businesses, early-stage non-profitable enterprises, low-growth industries, mining and resources, or property and construction ventures. It focuses on enterprises with proprietary technology or processes where it can see a clear opportunity to add value.