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Quilter AI

AI-driven PCB layout automation platform

Overview

Quilter AI builds software that automates PCB design. It converts circuit schematics into manufacturable PCB layouts using a physics-driven engine and reinforcement learning, rather than relying on large language models. The platform runs high-performance simulations to honor real-world constraints and generates dozens of layout options, enabling engineers to skip manual placement and routing. This approach differs from typical EDA tools by treating PCB layout as a compilation task, optimized through physics-based design and ML, instead of hand-tuned heuristics. Quilter targets electronics companies, startups, and prototyping teams, offering an open beta with free testing and a future usage-based pricing model. Its goal is to shorten the design cycle from weeks to hours, reduce costs, and accelerate hardware iteration and adoption.

Significant Headcount Growth

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About Quilter AI

Simplify's Rating
Why Quilter AI is rated
C
Rated C on Competitive Edge
Rated C on Growth Potential
Rated C on Differentiation

Industries

Industrial & ManufacturingEnterprise SoftwareAI & Machine LearningDesign

Company Size

11-50

Company Stage

Series B

Total Funding

$35M

Headquarters

Los Angeles, CA

Founded

2021

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Simplify's take

What believers are saying

  • October 2025 Series B from Index Ventures gives runway for sales and R&D.
  • September 9, 2026 hiring Eric Bogatin strengthens technical credibility with signal-integrity buyers.
  • March 10, 2026 SOC 2 Type II improves enterprise readiness for defense and cloud deployments.

What critics are saying

  • Cadence, Siemens, and Zuken can bundle AI into entrenched EDA workflows by 2027.
  • Automating dense HDI boards remains incomplete; blind vias and full clearance support stay in development.
  • If pilots stall, Quilter becomes a niche prototype tool, not the PCB operating system.

What makes Quilter AI unique

  • Sergiy Nesterenko founded Quilter in 2019 after SpaceX avionics work exposed PCB bottlenecks.
  • Quilter uses physics-driven reinforcement learning, not LLMs, to generate fabrication-ready PCB layouts.
  • July 8, 2026 BGA fanout and ECAD integrations expanded support across Altium, Cadence, Xpedition.

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Funding

Total Funding

$35M

Below

Industry Average

Funded Over

2 Rounds

Series B funding is typically for startups that have proven their business model and need more funding to expand rapidly—often by entering new markets or adding more products. Investors are usually venture capital firms that specialize in later-stage investments.
Series B Funding Comparison
Below Average

Industry standards

$35M
$30M
$45M
$65M
$100M

Benefits

  • Health Insurance
  • Dental Insurance
  • Vision Insurance
  • Unlimited Paid Time Off
  • Paid Parental Leave

Growth & Insights and Company News

6 month growth

6%

1 year growth

6%

2 year growth

2%
Associated Press
Jul 8th, 2026
Quilter automates BGA fanout for PCB layout, removing manual setup step for dense boards

Quilter, a physics-driven AI platform for PCB layout automation, has released automated BGA fanout capabilities, eliminating a major manual setup step for customers. The feature automatically generates fanout and breakout for ball grid arrays based on board placement, stackup, and routing requirements. The 2026 updates have expanded Quilter's ability to handle larger, denser, and more complex boards. Additional releases include project grouping for design iterations, calculated impedance profiles using Simbeor solver, editable impedance overrides, ground net comprehension, restructured setup flow, and custom component proximity constraints. Quilter reads design intent directly from ECAD files, replacing earlier calculated guesses with first-class capabilities. The platform supports Altium, KiCad, Cadence, and Xpedition formats, available as cloud or on-premise deployment. Future releases will include full clearance constraint support and blind and buried vias support.

Amy Ventures
Oct 17th, 2025
Quilter $25M Series B Funding Round

Quilter $25M Series B funding round. Quilter.ai has secured a $25 M Series B round led by Index Ventures, following its Feb 2024 $10 M Series A. The company offers a physics-driven AI platform to automate PCB layout - cutting design cycles from weeks to minutes and targeting aerospace, defense and consumer electronics. Executive summary. * Company Name: Quilter.ai (Legal Name: Allegro Labs, Inc.) * Description: Quilter.ai is developing a physics-driven AI platform to fully automate Printed Circuit Board (PCB) layout, aiming to reduce design cycles from weeks to minutes. * Key Business Metrics: * 31 employees (33% YoY growth) * $10M Series A (Feb 2024) led by Benchmark * Recent $25M Series B (Oct 2025) led by Index Ventures * Primary Value Proposition: To significantly accelerate hardware development and innovation by transforming PCB design into a rapid, autonomous, and physics-validated process. Company overview: * Business Model: Quilter operates on a B2B model, providing its AI-powered software to enterprises in the electronics sector. The platform integrates with existing CAD tools (Altium, Cadence, Siemens), suggesting a SaaS or licensing revenue model. * Target Market: The primary focus is on high-stakes, mission-critical industries including Aerospace & Defense, Semiconductor, and Consumer Electronics, where design speed and reliability are paramount. * Product/Service Portfolio: * The core offering is an AI platform that automates the entire PCB layout process, including component placement, routing, and verification, using a "physics-driven" reinforcement learning approach. * Geographic Presence: Headquartered in Los Angeles, CA, with web traffic indicating user interest from the US, Germany, and India. Leadership team: * Founder: * Sergiy Nesterenko is the Founder and CEO. * Professional Background: * Sergiy Nesterenko has a strong technical background with degrees in Physics, Mathematics, and Chemistry from UC Berkeley. * Previous Experience and Track Record: Prior to founding Quilter, Nesterenko was a Senior Radiation Effects Engineer at SpaceX, working on mission-critical systems. This experience in a high-stakes engineering environment is directly relevant to Quilter's target market. Competitive landscape: * Direct Competitors: * Established EDA Giants: Cadence (Allegro X AI), Zuken (CR-8000 AIPR), Siemens. These companies are integrating AI into their established, comprehensive platforms. * Emerging Startups: DeepPCB, Flux.ai, Celus, SnapMagic, AllSpice. These companies offer more focused or alternative approaches to design automation and collaboration. * Competitive Advantages: * Strong technical founder with relevant SpaceX experience. * Backing from top-tier VCs (Benchmark, Index Ventures). * A clear, ambitious vision for full automation that resonates with the market's need for speed. * Intense Competition: The EDA market is dominated by well-resourced incumbents (Cadence, Zuken) who are rapidly developing their own AI capabilities. * Technical Hurdles: Delivering on the promise of "fully autonomous" design for complex, mission-critical hardware is an enormous technical challenge. * Sales Cycle: Enterprise sales cycles in aerospace and defense can be long and complex. * Risk Factors: The primary risk is the ability to execute on their ambitious technical roadmap and compete with the R&D budgets of incumbents. Recent developments & insights: * Latest News and Announcements: The most significant recent news is the announcement of a $25M Series B funding round on October 8, 2025, led by Index Ventures. This provides significant capital for growth and market expansion. * Product Updates and Launches: The company is actively promoting its platform's ability to integrate with existing enterprise workflows (Altium, Cadence, Siemens) and its availability for on-premise and GovCloud deployments. * Strategic Partnerships: While no formal partnerships have been announced, the company is actively engaged with major players in the aerospace, defense, and automotive sectors. Key insights. * Strengths and Opportunities: * Strong Founder-Market Fit: Sergiy Nesterenko's background at SpaceX provides immense credibility. * Significant Market Pull: The electronics industry faces a major bottleneck in PCB design, and there is clear demand for solutions that can accelerate this process. * Top-Tier Investors: Backing from Benchmark and Index Ventures provides strong validation and access to a powerful network.

Quilter AI
Oct 10th, 2025
Quilter Raises $25M Series B

Today we’re announcing Quilter’s $25M Series B to accelerate electronics design with physics-driven AI.

Genaro Palma Consulting EOOD
Oct 8th, 2025
Index Ventures Leads $25M Round for Quilter AI

* Quilter raised $25 million in Series B funding led by Index Ventures to automate PCB design using physics-driven AI, cutting weeks of work down to minutes.

FinancialContent
Oct 8th, 2025
Quilter Raises $25M to Automate PCB Design

Quilter, backed by Index Ventures, has secured $25M in Series B funding to automate PCB design using physics-driven AI. This technology reduces design time from weeks to minutes, transforming hardware development. Quilter's AI, based on fundamental physics, surpasses human design capabilities. Major aerospace, defense, and electronics companies are adopting Quilter's solution, signaling a shift in the $1 trillion hardware industry. Quilter has raised $40M to date.

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