TYLsemi, a San Jose-based chiplet-first silicon company, has raised $43 million in oversubscribed early-stage funding led by Matter Venture Partners. The company delivers production-ready chiplets for connectivity, power delivery, and memory that let AI hardware teams build custom silicon faster and with less risk. The capital will accelerate its product roadmap and expand engineering teams across silicon design, packaging, and systems.
Chiplet Market Explodes Amid AI Demand
The timing comes amid explosive growth in chiplet adoption. DreamBig Semiconductor raised $75M Series B in July 2024, while Eliyan secured $150M total across multiple rounds including a $50M strategic round in 2026. Baya Systems raised $36M Series B in January 2025. TYLsemi's approach — a full-stack portfolio spanning IO, power, and memory plus custom silicon via TYL.Forge — addresses the gap between fragmented IP vendors and hyperscaler-only custom silicon providers.
AI Accelerators Hit Physical Limits
Monolithic chip designs are approaching reticle limits, forcing the industry toward multi-die architectures. The AI accelerator market is projected to reach $604 billion by 2033, with custom XPUs as the fastest-growing segment. Hyperscalers like Meta have already shifted: the company built four distinct XPU designs in two years using chiplets versus four-plus years with traditional monolithic methods.
Production-Ready Chiplets Replace Custom Builds
TYLsemi offers TYL.IO for connectivity, TYL.Power for in-package voltage regulation, and a roadmap for memory connectivity, all built on UCIe standards and manufactured with TSMC. Samples are slated for 2027. Unlike interconnect-PHY specialists or fabric-IP providers, TYLsemi delivers complete, validated silicon blocks that integrate into full custom programs through TYL.Forge.
"At that scale, chiplet-based design is no longer optional, yet there is no pure-play chiplet company serving this market with a full portfolio," said co-founder and CEO Mohit Gupta.
Mission Capital Validates Platform Thesis
Lead investor Matter Venture Partners and co-investors Viola Ventures, GHOVC, and strategic backer Egis Technology bring both growth capital and ecosystem validation. Egis, developing its own Mobius100 datacenter CPU, cited TYLsemi chiplets as essential building blocks. Investor Zvika Orron of Viola Ventures noted that the funding makes advanced custom silicon accessible beyond the largest hyperscalers.
Chiplet Market to Reach $492B by 2035
The chiplet market is forecast to grow from $12.96 billion in 2025 to $492.66 billion by 2035 at a 44% CAGR. Structural drivers include UCIe standardization, 2.5D/3D packaging maturity at TSMC, and hyperscaler capex exceeding $750 billion for 2026 data center infrastructure. TYLsemi positions itself as the missing platform layer that lets mid-tier AI companies pursue workload-specific silicon without billion-dollar programs.
Team Pedigree Accelerates Execution
Founders Mohit Gupta and Sunil Bhardwaj previously held executive roles at Alphawave Semi, acquired by Qualcomm for approximately $2.4 billion in 2025. Recent hires include veterans from Microsoft, TSMC, Ampere, and Intel, bringing more than 110 cumulative years of experience in just five weeks.