Startup investors — March 2026

Investor activity and startup funding rounds for the selected month.

1,516 investors

Y Combinator (YC)

Seed · Series A +2 stages

Markets
AICybersecurity
19rounds19 companies

Andreessen Horowitz (a16z)

Series A · Series B +2 stages

Markets
Climate techCybersecurity
14rounds14 companies

General Catalyst

Seed · Series A +2 stages

Markets
AIClimate tech
14rounds14 companies

Accel

Series A · Series B +1 stages

Markets
CybersecurityEnterprise software
7rounds7 companies

Sequoia Capital

Series A · Series B +2 stages

Markets
AICybersecurity
7rounds7 companies

8VC

Series A · Series B +1 stages

Markets
AICybersecurity
6rounds6 companies

Coatue

Series A · Series B +2 stages

Markets
AIDefense tech
6rounds6 companies

Index Ventures

Seed · Series A +2 stages

Markets
AICybersecurity
6rounds6 companies

Menlo Ventures

Pre-seed · Series A +1 stages

Markets
AIClimate tech
6rounds6 companies

Alumni Ventures

Seed · Series A +2 stages

Markets
CybersecurityDefense tech
5rounds5 companies

Antler

Pre-seed · Seed

Markets
AIClimate tech
5rounds5 companies

Bain Capital Ventures

Series A · Series B +1 stages

Markets
AIConsumer
5rounds5 companies

Benchmark

Series A · Series B +1 stages

Markets
AIEnterprise software
4rounds4 companies

Founders Fund

Series A · Series B +1 stages

Markets
AgritechDefense tech
4rounds4 companies

GV (Google Ventures)

Series A · Series B +1 stages

Markets
CybersecurityDefense tech
4rounds4 companies

ICONIQ

Seed · Series C+

Markets
AIEcommerce
4rounds4 companies

IVP

Series B · Series C+

Markets
AICybersecurity
4rounds4 companies