The Most Active Venture and Growth Investors

Most active measures the number of distinct companies each firm backed. Altss derives the ranking from investor-company pairings in deal announcements tracked over the trailing 12 months to 17 July 2026. Y Combinator stands first with 263. Andreessen Horowitz places second with 216. General Catalyst holds third at 189. The count uses confidence-filtered data and merges name variants. Scope stays limited to independent venture-capital and growth-equity firms at every stage from seed to late growth. The list omits buyout and PE firms, banks, asset managers, sovereign-wealth funds, and corporate strategics. These 20 firms produced 2,497 of the more than 100,000 pairings Altss recorded across all investor types.

Activity rankings differ from AUM or fund-size tables. High deal volume can come from accelerator models rather than large capital pools. Y Combinator runs two batches a year of pre-seed and seed startups. That model produces the highest company count. Multi-stage firms such as Andreessen Horowitz and Sequoia Capital place near the top. The list shows geographic spread. US firms dominate the upper ranks. Peak XV Partners represents India and Southeast Asia from Bengaluru and Singapore. Balderton Capital and Index Ventures bring London bases. Accel spans Palo Alto and London. General Atlantic and Insight Partners both sit in New York with 109 companies each. The ranking captures breadth of company relationships, not capital deployed.

The ranking highlights seed and early-stage volume in the venture market from the firms present. Accelerators and multi-stage firms fill the top spots. Y Combinator, Khosla Ventures, and Menlo Ventures emphasize early stages. Growth-equity names such as General Atlantic and Insight Partners appear lower yet remain active. Crossover investors including Tiger Global, Coatue, and RA Capital Management enter the list. European and Asia-focused firms secure mid-table places. Peak XV Partners covers India and Southeast Asia. The top 20 produced 2,497 pairings. This concentration shows a core group of firms drives much of the tracked activity. Each firm links through to its Altss profile for full announcement history.