Ayar Labs Raises $150 Million More, Reaching $650 Million for 2026

Ayar Labs has secured an additional $150 million, extending its Series E round and bringing the co-packaged optics company's total primary capital raised in 2026 to $650 million. Taiwanese data center equipment manufacturer Wiwynn joined existing backers Nvidia, AMD, and MediaTek in the extension. Separately, a $225 million secondary share purchase led by Antero Peak Group at Artisan Partners, alongside Sequoia Global Equities, ARK Invest, and Greycroft, valued the company at more than $5 billion.

Shortening the Path Between Light and Silicon

Ayar Labs builds co-packaged optics, technology that replaces traditional copper interconnects with optical links transmitting data using light, integrated directly alongside compute chips within the same package. Shortening the electrical path and moving optical conversion closer to the processor reduces both energy loss and latency, two of the biggest constraints on scaling AI data centers as compute clusters grow larger and more power-hungry.

A New Design Center in India

Part of the new capital will fund a new design center in Bengaluru, India, alongside continued investment in product development, validation, and scaling the manufacturing ecosystem as the company moves toward high-volume production. Opening a dedicated design center in India, rather than simply hiring remote engineers, signals Ayar Labs is treating the market as a long-term talent and engineering hub rather than a short-term cost-saving measure.

A Secondary Sale as a Retention Tool

The $225 million secondary transaction, letting early employees and investors sell equity while the company remains private, is increasingly common among well-capitalized deep tech companies that expect to stay private for several more years while capital-intensive hardware development continues. Allowing early team members to realize some liquidity without waiting for an eventual IPO or acquisition helps a hardware company retain the specialized engineering talent a multi-year silicon and optics development program depends on, particularly when competitors are actively recruiting from the same narrow pool of photonics and chip-packaging expertise.

What This Means for Founders

Ayar Labs' extension shows that capital-intensive deep tech companies solving a genuine physical bottleneck in AI infrastructure can continue raising substantial follow-on capital within the same calendar year, provided the underlying technology addresses a constraint, like data center power and latency, that every major AI infrastructure buyer shares. AngelLinx's deep tech investor directory helps founders identify investors experienced with capital-intensive hardware and infrastructure bets, and the fit-scoring match tool surfaces the right match as a company's capital needs scale. The live listings page shows current founder campaigns performing against real investor interest today, and AngelLinx's guide to managing burn rate is useful for founders planning multi-round, capital-intensive development cycles. The AngelLinx newsroom tracks major AI infrastructure funding as it develops. Founders building capital-intensive deep tech can register at https://angellinx.ai/register today.

AngelLinx Intelligence | angellinx.ai