Walden Catalyst Ventures
San Francisco, California, United StatesFounded 2021
Walden Catalyst Ventures is an early-stage venture capital firm focused on deep-tech investments in data and AI across the U.S., Europe, and Israel. Founded in 2021 as a spinoff of Walden International, the firm is led by Lip-Bu Tan and Young Sohn and manages over $550 million in committed capital.
Deal activity decreased year-over-year (2 deals in the last 12 months vs 6 prior). Average disclosed round size is $57.2M (across 29 rounds with reported amounts).
Portfolio
25
Fund Size
$550M
Top Stage
Series A
Last 12 Mo
4
Team
Lip-Bu Tan
Founding Managing Partner
Young Sohn
Founding Managing Partner
Teresa Smith
Chief Financial Officer
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
32 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Opaque Systems | Series B | $24M | Feb 2026 |
| OOpaque | Series B | $24M | Jan 2026 |
 NeoCognition | Seed | $40M | Jan 2026 |
 Empower Semiconductor | Series D | $140M | Sep 2025 |
 Speedata | Series B | $44M | Jun 2025 |
 Virtue Ai | Seed | — | Apr 2025 |
 Ati Motors | Series B | $20M | Jan 2025 |
 ANYbotics | Series C | $60M | Dec 2024 |
 Nearfield Instruments | Series C | — | Jul 2024 |
| NNearfield | Series C | — | Jul 2024 |
 AI21 | Series C | $155M | Aug 2023 |
| ANYbotics | Series B | $50M | May 2023 |
 3D Glass | Series C | $30M | Apr 2023 |
 Artera | Unknown | $90M | Jan 2023 |
 Galileo | Series A | $18M | Nov 2022 |
| AI21 | Series B | $64M | Jul 2022 |
| Opaque Systems | Series A | $22M | Jun 2022 |
| OOpaque | Series A | $22M | Jun 2022 |
 Peptone | Series A | $40M | Jan 2022 |
| Speedata | Series A | $55M | Sep 2021 |
| 33D Glass Solutions | Series C | $30M | Jan 2021 |
| 3D Glass | Series C | $30M | Jan 2021 |
 Clarity | Seed | $16M | — |
 Rivos | Unknown | $250M | — |
 Voltron Data | Seed | $22M | — |
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Top Co-Investors
Intel Capital8 shared
Factory6 shared
Koch Disruptive Technologies5 shared
Bessemer Venture Partners5 shared
Pitango VC4 shared
Thomvest Ventures4 shared
Cambium Capital4 shared
NGP Capital3 shared
GV3 shared
Lightspeed Venture Partners3 shared
Alphabet Inc.3 shared
Coatue Management LLC3 shared
Lockheed Martin Ventures3 shared
Battery Ventures2 shared
Accel2 shared
83North2 shared
Viola Ventures2 shared
Samsung Next2 shared
NVentures2 shared
Last updated: 8 September 2026