Neurophos is an Austin-based semiconductor company developing photonic AI inference chips. It builds optical processors and metasurface-based compute systems designed to improve AI speed and energy efficiency.
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| Date | Round | PPS (split-adj.) | Valuation |
|---|---|---|---|
| Jan 2026 | Series A | ||
| Dec 2023 | Seed |
Neurophos announced a $110 million oversubscribed Series A in January 2026, bringing total funding to $118 million. The Austin-based company said it plans to expand its North Austin headquarters and hire 80 local employees.
Neurophos says it is leveraging decades of metamaterials research and more than 300 patents to build its optical compute-in-memory platform. Its architecture targets AI inference speed and energy efficiency gains of more than 100x.
Neurophos develops ultra-dense Optical Processing Units that it says can match workloads equivalent to 100 leading GPUs while using only 1% of the power. The company describes the chips as a drop-in replacement for data-center GPU environments.
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No. As of August 2026, Neurophos is a private company and does not trade on any public stock exchange. Accredited investors can access Neurophos shares through UpMarket, a FINRA-registered broker-dealer that specializes in pre-IPO investments.
Neurophos does not have a public stock price because it is privately held. The most recent known share price comes from its last funding round. Pre-IPO share prices on the secondary market may differ from the last round price depending on supply, demand, and market conditions.
Yes. Accredited investors can indicate interest in Neurophos shares through UpMarket by filling out the form on this page or creating an account at upmarket.co. All pre-IPO offerings are subject to availability and require a $50,000 minimum investment. UpMarket is a FINRA-registered broker-dealer and has brokered more than $500M in alternative investments since 2019.
Pre-IPO investments carry significant risks. Neurophos shares are illiquid, meaning there is no public market to sell them quickly. There is no guaranteed exit timeline or return. The investment is speculative in nature, and investors should be prepared for the possibility of total loss. Valuations of private companies can fluctuate substantially between funding rounds. Investors should consult their financial advisor and review all offering documents before investing.
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Neurophos is an Austin-based semiconductor company developing photonic AI inference chips and optical processors, raised $110M in Series A funding to scale its metasurface-based compute systems, accredited investors can access Neurophos stock through UpMarket.