Peter Mobbs is the Managing Director of Greyrock Investments. See contact routes.
Peter Mobbs is the Managing Director of Greyrock Investments, a Sydney-based single-family office he co-founded with his wife Yvette in 2017 after holding 15+ years of experience as an entrepreneur and executive in the private education industry. Greyrock’s investment mandate focuses on education and technology across asset classes, prioritizing quality, ethical investments with a long-term horizon and excluding gaming or tobacco sectors. The firm invests globally in market-leading EdTech businesses, though specific check sizes and lead/follow behavior are not publicly detailed for Greyrock itself, while Mobbs separately leads $2M–$20M Series B+ investments at Five Sigma, a global EdTech growth fund. Notable portfolio companies linked to Mobbs include Crimson Education, where he participated in its Series D, and other global EdTech leaders identified in his Five Sigma activity. Mobbs distinguishes himself as a “CEO-turned-investor” who applies operator insights to scaling ventures and has reported a 10.1x return on invested capital from his own balance sheet investments prior to launching Five Sigma.
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