Quilter
Physics-Driven AI for Electronics Design
San Francisco, United States · Founded 2023 · $35.0M raised
- Headquarters
- San Francisco, California
- Employees
- 11–50
- Founded
- 2023
- Business Model
- B2B
- Website
- quilter.ai
- Total Funding
- $35.0M
- Last Round
- $25.0M Series BOct 2025
- Rounds
- 2
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
Indexed holds 2 funding rounds and 2 investors for this company. The full record is or through the API.
About
Quilter is physics-driven AI that automates PCB placement and routing. Hardware teams in consumer electronics, aerospace, and defense are using Quilter to design boards reaching fabrication today. Engineers upload their existing ECAD design and Quilter handles placement and routing, showing every physics check it ran so the engineer stays in control at every step. Rather than acting as another auto-router, Quilter compiles boards that respect the circuit's electrical behavior instead of just connecting nets.
Summary
Quilter is an Artificial Intelligence company based in San Francisco, United States, founded in 2023. It has raised $35.0M in total across 2 rounds, most recently a $25.0M Series B round in Oct 2025. Investors include Index Ventures and Benchmark.
Tech & App Stack
7 technologies & apps tracked
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Funding History
Oct 2025
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Funding: Series A through Series B. Amounts, valuations, and investors where available.
Investors
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