Pseudolithic
Santa Barbara, US · 18 employees on LinkedIn · 3 known investors
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PseudolithIC develops mm-wave RF components including power amplifiers, low-noise amplifiers, and transmit/receive front-ends, using heterogeneous integration of compound semiconductors and silicon. The company targets high-performance RF applications with smaller, scalable solutions.
Founders & leadership

Investors · 3
How we know: a partner's Signal profile · funding news · compoundsemiconductor.net · the VCSheet dataset · Not right? Tell us
How we know: Foothill Ventures's portfolio page · funding news · compoundsemiconductor.net · the VCSheet dataset · open dataset · 5k.vc investor directory · Not right? Tell us
Funding
SEC filings, press & company announcements- Undisclosed amountseed fundingJan 2025
Entrada Ventures (lead), Foothill Ventures, Uncork Capital
Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
Non-dilutive funding · 10 SBIR/STTR awards
Federal grants — no equity taken| Agency | Phase | Year | Amount |
|---|---|---|---|
| U.S. Air ForceAir Force | Phase II | 2023 | $1.2M |
| Department of Energy | Phase II | 2023 | $1.1M |
| National Science Foundation | Phase II | 2023 | $995.1K |
| Defense Advanced Research Projects Agency (DARPA)Defense Advanced Research Projects Agency | Phase II | 2022 | $1.5M |
| Defense Advanced Research Projects Agency (DARPA)Defense Advanced Research Projects Agency | Phase II | 2022 | $1.5M |
| Department of Energy | Phase I | 2022 | $200K |
| U.S. ArmyArmy | Phase ISTTR | 2022 | $172.9K |
| U.S. Air ForceAir Force | Phase I | 2022 | $146.2K |
| National Science Foundation | Phase I | 2021 | $256K |
| U.S. NavyNavy | Phase I | 2021 | $240K |
Source: SBIR.gov award data (U.S. Small Business Administration). SBIR/STTR awards are competitive federal R&D grants and contracts — non-dilutive capital alongside any venture rounds above.
Frequently asked questions
- What does Pseudolithic do?
- PseudolithIC develops mm-wave RF components including power amplifiers, low-noise amplifiers, and transmit/receive front-ends, using heterogeneous integration of compound semiconductors and silicon. The company targets high-performance RF applications with smaller, scalable solutions.
- Who founded Pseudolithic?
- Pseudolithic was founded by Dr. Florian Herrault, Prof. James Buckwalter.
- Who are Pseudolithic's investors?
- Pseudolithic's investors include Entrada Ventures, Foothill Ventures, Uncork Capital.
- Where is Pseudolithic headquartered?
- Pseudolithic is headquartered in Santa Barbara, US.



