AI Funding: Most Active Seed AI Investors 2026

# Most Active Seed AI Investors 2026

The most active seed AI investors are firms with the highest count of disclosed seed-stage AI deals, with lead-deal activity indicating how often they set or co-set round terms.

TL;DR

Andreessen Horowitz ranks first with 6 AI deals and 6 lead deals, making it the most active and most consistently leading seed AI investor in this ranking.

Khosla Ventures follows with 5 AI deals and 3 lead deals, while General Catalyst and Y Combinator each record 4 AI deals but show different lead-investor profiles.

The list separates firms that frequently lead seed AI rounds from investors that appear more often as syndicate participants, such as BoxGroup with 3 AI deals and 0 lead deals.

Key Takeaways

1. Andreessen Horowitz ranks No. 1 with 6 AI deals and 6 lead deals: , represented by companies including Replit, Pillar, Pit, Thinking Machines Lab, and Probably.

1. Khosla Ventures ranks No. 2 with 5 AI deals and 3 lead deals: , with representative AI exposure across Sakana AI, Synthetic, Pramaana Labs, Clair Health, and Genesis AI.

1. General Catalyst and Y Combinator both have 4 AI deals: , but General Catalyst has 3 lead deals while Y Combinator has 1, indicating different roles in seed AI financing.

1. Kleiner Perkins ranks No. 5 with 3 AI deals and 3 lead deals: , making it one of the investors with full lead participation among its listed AI seed deals.

1. Index Ventures and Seedcamp each record 3 AI deals and 2 lead deals: , placing both in the middle of the ranking with a mix of lead and syndicate activity.

1. BoxGroup ranks No. 9 with 3 AI deals and 0 lead deals: , while a16z Speedrun ranks No. 10 with 2 AI deals and 2 lead deals, showing that deal count and lead intensity do not always move together.

How is this ranking calculated?

This ranking is based on the number of AI seed deals attributed to each investor, with lead deals shown as a separate measure of conviction and round-setting activity. The order is determined by the authoritative deal counts provided for the ranking, not by assets under management, brand profile, valuation, or portfolio company performance.

Lead deals are important because they suggest a more active role in pricing, diligence, company formation, or early board-level engagement. However, non-lead participation can still be strategically meaningful, especially in competitive AI categories where investors may seek exposure across multiple technical or application-layer companies.

Which investors are most active at seed stage in AI?

Andreessen Horowitz

Andreessen Horowitz ranks first with 6 AI deals and 6 lead deals. Its position reflects both breadth and lead-investor intensity: every listed AI seed deal attributed to the firm is also counted as a lead deal. Representative companies include Replit, Pillar, Pit, Thinking Machines Lab, and Probably, indicating exposure across developer tools, AI-native workflows, and frontier or applied AI company formation.

Khosla Ventures

Khosla Ventures ranks second with 5 AI deals and 3 lead deals. The firm’s representative portfolio (Sakana AI, Synthetic, Pramaana Labs, Clair Health, and Genesis AI) points to participation across model development, synthetic data or AI infrastructure, healthcare AI, and applied automation. Its 3 lead deals show that Khosla Ventures is both participating in AI seed rounds and taking lead roles in a majority of its listed activity.

General Catalyst

General Catalyst ranks third with 4 AI deals and 3 lead deals. Its representative portfolio includes AgentMail, Thinking Machines Lab, Autoscience, and Status AI. The 3 lead deals suggest a high-conviction approach within a smaller deal count than the top two investors. General Catalyst’s presence in both Thinking Machines Lab and application-oriented companies such as AgentMail and Status AI reflects a mix of foundational and product-led AI exposure.

Y Combinator

Y Combinator ranks fourth with 4 AI deals and 1 lead deal. Its representative companies include AgentMail, Leadbay, Status AI, and Proception. The ranking captures Y Combinator’s role as a major seed-stage platform for AI startups, though its 1 lead deal indicates a different pattern from traditional venture firms that more frequently lead priced rounds. Its activity appears more closely tied to early company formation and broad seed-stage access.

Kleiner Perkins

Kleiner Perkins ranks fifth with 3 AI deals and 3 lead deals. Its representative portfolio includes Health Universe, Harvey, and Mirendil. With all 3 of its listed AI deals also counted as lead deals, Kleiner Perkins shows a concentrated lead-investor profile. The portfolio names suggest exposure to AI in healthcare, legal or professional workflows, and technical or enterprise-facing applications.

Index Ventures

Index Ventures ranks sixth with 3 AI deals and 2 lead deals. Its representative companies are Uncovr, NewCore, and Build. The firm’s 2 lead deals out of 3 AI deals indicate a selective but active role in shaping seed rounds. The listed companies suggest interest in AI-enabled software, productivity, and infrastructure or builder-oriented categories.

Seedcamp

Seedcamp ranks seventh with 3 AI deals and 2 lead deals. Its representative portfolio includes Omniscient, Uncovr, and Waniwani. The firm’s position reflects meaningful early-stage AI participation, with lead roles in 2 of its 3 listed deals. Seedcamp’s activity is notable for combining seed-stage access with a relatively high lead-deal share among investors with the same total deal count.

Neo

Neo ranks eighth with 3 AI deals and 1 lead deal. Its representative companies include Bluesky, Miravoice, and Altara. The firm’s 3 AI deals place it alongside several other mid-ranking investors by volume, while its 1 lead deal suggests a more mixed role across lead and syndicate participation. The listed names point to engagement with AI-enabled communication, product, and software use cases.

BoxGroup

BoxGroup ranks ninth with 3 AI deals and 0 lead deals. Its representative portfolio includes Era, Altara, and Proception. BoxGroup’s placement shows that an investor can be active in AI seed participation without leading rounds. The 0 lead-deal count suggests its role in this dataset is more syndicate-oriented, providing exposure across early AI companies rather than controlling round leadership.

a16z Speedrun

a16z Speedrun ranks tenth with 2 AI deals and 2 lead deals. Its representative companies are ZeroDrift and Orbital. Although it has the lowest AI deal count in the top ten, both of its listed deals are lead deals, giving it a high-conviction profile within a narrower set of seed AI investments. Its activity appears focused on targeted early AI company formation rather than broad portfolio volume.

What does the ranking show about seed AI investing in 2026?

The ranking shows that seed AI investing is not defined by deal count alone. Andreessen Horowitz leads on both volume and lead activity, with 6 AI deals and 6 lead deals. Khosla Ventures follows with 5 AI deals and 3 lead deals, while General Catalyst’s 4 AI deals and 3 lead deals place it ahead of Y Combinator despite both investors having the same number of AI deals.

The middle of the ranking highlights a cluster of investors with 3 AI deals, including Kleiner Perkins, Index Ventures, Seedcamp, Neo, and BoxGroup. Their lead-deal counts vary significantly, from Kleiner Perkins at 3 lead deals to BoxGroup at 0. That variation matters because it separates investors that are frequently setting terms from those building exposure through participation.

Why do lead deals matter in seed AI rankings?

Lead deals provide context for how deeply an investor may be involved in a seed round. A high lead-deal count can indicate stronger ownership intent, earlier conviction, and a larger role in financing structure. In this ranking, Andreessen Horowitz, Kleiner Perkins, and a16z Speedrun each lead every AI deal attributed to them.

By contrast, investors such as Y Combinator, Neo, and BoxGroup show lower lead-deal counts relative to total AI deals. That does not make their participation less relevant, but it suggests a different role in the seed ecosystem: company formation, syndicate access, or portfolio breadth rather than consistent round leadership.

The full ranking

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