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.

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