ChainCatcher, citing tracking data from financial data provider FINTRX, reported that family offices participated in 109 deals in August. The disclosed financing raised across the relevant rounds totaled $16.9 billion.
Follow-on rounds accounted for 27% of the transactions. These are rounds in which a family office continues investing in a company it already holds in its portfolio. Based on the data, family offices were more active in finding and backing new projects than in adding capital to existing investments.
a16z Perennial led deal participation
a16z Perennial was the most active institution in August, joining 17 deals. Founded in 2022, it is a joint family office within venture capital firm Andreessen Horowitz’s network. The office provides wealth-management and investment services for core partners Marc Andreessen and Ben Horowitz, as well as entrepreneurs supported by the firm.
As of the end of 2025, a16z Perennial managed about $2.74 billion in regulatory assets. The financing rounds involving the institution had a combined disclosed size of about $10.45 billion.
YZi Labs ranked second
YZi Labs, backed by Binance founder CZ, ranked second after participating in 10 deals. The firm manages more than $10 billion in assets globally and invests across Web3, artificial intelligence and health care. Its portfolio includes companies at different stages of development.
The financing rounds linked to YZi Labs’ August transactions totaled $42.1 million. Many of the transactions appeared in large financing rounds worth hundreds of millions or even billions of dollars.
FINTRX’s figures require a qualification: the reported amounts represent the combined financing raised by all investors in the relevant rounds, not the family offices’ actual contributions. Because family-office investing is highly private, the specific amount invested by an individual family office in each transaction is usually difficult to obtain.