Mueon

Mesh Optical Technologies, founded in 2025 in Los Angeles, California, USA, by three former SpaceX Starlink optical communications engineers, mass-produces high-performance optical transceivers for high-speed optical interconnects in AI data centers. Its flagship product, the Alpha C1, achieves a transmission rate of 1.6 Tbps.

Series A · $50M · 2026-02

VEIR designs and manufactures superconducting power-delivery systems that combine high-temperature superconducting cables with cryogenic cooling, controls, terminations and monitoring, moving 5–10x more electricity through a smaller footprint with ~90% less resistive loss than copper, for AI data centers, utilities and renewable projects. Founded in 2019, based in Woburn, Massachusetts.

Series C · $225M · 2026-10

Accelsius, founded in 2022 in Austin, Texas, provides two-phase direct-to-chip liquid cooling systems, branded NeuCool®, for AI data centers.

Series B · $65M · 2026-01

Haiguang Xinzheng is a provider of silicon photonics chips and high-speed optoelectronic interconnect products, including optical modules, active optical cables (AOC), and high-speed active electrical cables. Its products are deployed in AI data centers to support high-speed, high-density data transmission. The company is among the few globally with both silicon photonics chip design capabilities and the ability to develop and mass-produce silicon photonic optical modules.

IPO · $181M · 2026-06 · Valuation $2.3B

Fangqing Technology, founded in 2022 in Shanghai, China, develops multi-core NPU and decoupled distributed AI computing chips.

Series A · $71M · 2026-08 · Valuation $1.5B

Founded in 2025 in Hangzhou by CityU Hong Kong chair professor and HyperLight co-founder Cheng Wang, the company develops thin-film lithium niobate (TFLN) photonic chips, including frequency-comb sources, high-speed EO modulators, coherent IQ modulators and photonic engines for AI data-center optical interconnect.

Series A · 2026-09

Fractile, founded in 2022 in London, UK, develops advanced AI chips that run AI models 100x faster than traditional methods at 10x lower cost.

Series B · $236M · 2026-05

Operates carrier-neutral colocation data centers in Africa

Undisclosed · $30M · 2026-07

DataCrunch, founded in 2018 in Helsinki, provides AI cloud infrastructure powered by hydroelectric and wind energy, emphasizing data sovereignty and renewable energy.

Series A · $71M · 2025-09

AirTrunk is a Sydney-headquartered hyperscale data centre operator founded in 2015, building and operating campuses across Asia-Pacific and expanding into the Middle East, serving cloud, content and large enterprise customers under long-term leases.

Stathera is a fabless semiconductor company headquartered in Montreal, originating from MEMS technology research at McGill University (formerly Nxtsens, founded in 2015, operating independently since 2020). Its DualMode architecture MEMS silicon clock oscillators reduce package size by up to 85% with lower power consumption, with applications spanning smartphones, IoT, and clock synchronization for AI data center GPU clusters.

Series B · $55M · 2026-06

Helix Digital Infrastructure was launched by KKR in June 2026 with former AWS CEO Adam Selipsky as co-founder and CEO. It combines hyperscale data center development and operations, baseload and flexible power generation, transmission and fiber connectivity in a single company serving hyperscalers. KKR and the Kuwait Investment Authority are founding investors, NVIDIA is a strategic partner and Vistra its preferred power partner, with more than $10 billion of long-duration capital committed at launch.