Skip to content
Sectors How it works Pricing Client stories

Insights

Companies Live signals Events Markets Trends Company lists
Log in
Platform Signal Tracker API Radar Book a 7-day Readout
Lightmatter logo — A Giant Leap

Lightmatter

A Giant Leap

Founded 2017 United States Mountain View, United States 375 employees Series C Total: $422.00M AI, Hardware +2

General Information

Company Name Lightmatter
Founded Year 2017
Location United States Mountain View, United States
Employees 375
Industries AI, Hardware, Semiconductor +1
Funding Stage Series C
Business Model B2B, Platform, B2B2B
Revenue Model Product Sales, Licensing
Hiring 23 roles posted in the month to 24 Oct 2026
Offices as of Sep 2026
Mountain View, United States Boston, United States Toronto, Canada
Social

BounceWatch is an independent company data service, not affiliated with Lightmatter. To contact Lightmatter, visit lightmatter.co.

Is this your company?

Confirm with your work e-mail, get the Verified badge and keep this profile correct yourself. Search engines and AI assistants read it every day.

Get Verified

How does Lightmatter compare?

A PDF of Lightmatter and up to 10 competitors you pick: team, funding, traffic and every dated move of the last 90 days. Each company is re-checked on the day you order, so it is current.

See a sample report

This takes a few seconds: we look beyond our own index too.

Meeting Lightmatter soon?

A one-page PDF brief: what it does, key facts, the last 90 days of dated moves and questions worth asking. Re-checked on the day you order. See a sample

Recorded by Bounce Watch from public sources. Every entry below carries the date we observed it, and when we have not looked recently the page says so rather than leaving silence to imply nothing happened.

Actively Hiring Oct 22, 2026

Hiring for 23 positions in the last 30 days.

Event Participation Oct 19, 2026

Lightmatter is participating as an exhibitor at the Optics + Photonics Fall Career Fair 2026 held at Boston University Photonics Center.

In The News Oct 15, 2026

Featured on Time Magazine: Lightmatter Guide: The Best Inventions of 2026

Award Received Oct 15, 2026

Lightmatter's Guide VLSP light engine has been selected as one of TIME's 2026 Best Inventions, recognized for its advanced data center optics.

New Partnership Oct 13, 2026

Lightmatter announced a partnership with Flex to co-develop a next-gen 204.8 Tbps CPO switch tray.

Lightmatter a competitor of yours? Have our desk watch it

AI Insight

Bounce Watch AI
2 months ago

Lightmatter is strategically gearing up for a significant period of expansion and market engagement by August 2026. This forward-looking strategy is evident through their planned recruitment of 60 new positions, an anticipated major website overhaul (70.67% change), and scheduled representation at the PECC Summit. These coordinated efforts suggest a concerted push towards scaling operations, enhancing their digital presence, and reinforcing industry visibility for their advanced photonic computing platform, likely in preparation for a major market unveiling.

Signal Types
Hiring Event Website Update
Strategic Labels
Planned Growth Market Expansion Prep Digital Transformation
Next Move: Product Launch
·
Impact: 8/10
·
Ideal For: AI Hardware Investors — Series C/D

About Lightmatter

Lightmatter, founded in 2017, is on a mission to drive technological breakthroughs by developing a powerful computation engine that will redefine the capabilities of computers and humans alike. Operating at the intersection of AI, Hardware, Semiconductor, and Machine Learning industries, this United States-based startup embodies its slogan, "A Giant Leap."

In a significant endorsement of its vision and potential, Lightmatter secured a $155.00M Series C investment on 19 December 2023. This latest funding round saw participation from a strong lineup of investors, including GV, Eastward Capital Partners, SIP Global Partners, and Viking Global Investors. This capital injection propels the firm towards its goal of engineering disruptive technology crucial for future discoveries and progress across various sectors.

Business keywords: photonic computing, AI hardware, next-generation computing, processor performance, Moore's Law, Dennard Scaling, electronics, photonics, new algorithms, sustainable technology, compute chips, technology innovation, performance scaling, energy-efficient computing

Services & Products

Development of photonic chips and interconnects
Provision of high-bandwidth, energy-efficient networking solutions
Manufacturing of co-packaged optics and light engines
Supporting frontier-scale AI model training and inference

Target Customers

AI and data center operators Hyperscalers GPU cluster managers Companies involved in large-scale AI model training

Funding Rounds & Investors (5)

View All
Funding Stage Amount Investors Lead Investors Date
Series C $155.00M 4
GV Eastward Capital Partners SIP Global Partners
GV, Eastward Capital Partners +2
19 Dec 2023
Series C $154.00M 6
GV Fidelity Hewlett Packard Enterprise
GV, Fidelity +4
31 May 2023
Series B $80.00M -
06 Apr 2021
Series A $22.00M -
26 Feb 2019
Series A $11.00M -
05 Feb 2018

Latest News

View All
Lightmatter Guide: The Best Inventions of 2026 — Time Magazine
Lightmatter Guide: The Best Inventions of 2026
Time Magazine Oct 15, 2026
Lightmatter Links with ODMs to Pave a Glide Path for CPO — Counterpoint Research
Lightmatter Links with ODMs to Pave a Glide Path for CPO
Counterpoint Research Oct 14, 2026
Lightmatter and Flex Bring 204.8 Tbps Co-Packaged Optics Into Open Racks — The Futurum Group
Lightmatter and Flex Bring 204.8 Tbps Co-Packaged Optics Into Open Racks
The Futurum Group Oct 13, 2026
Lightmatter launches an optical module that cuts AI cluster fiber in half — Digitimes
Lightmatter launches an optical module that cuts AI cluster fiber in half
Digitimes Sep 23, 2026
The AI Boom Is Fueling a Need for Speed in Chip Networking — Wired
The AI Boom Is Fueling a Need for Speed in Chip Networking
Wired Nov 12, 2025

Lightmatter Alternatives & Competitors

View All Alternatives
Lightmatter vs
Neurophos
Neurophos United States

Photonic ExaFLOPS AI chips

Series A
41 employees
AI, Hardware
Compare Lightmatter vs Neurophos
Lightmatter vs
Celestial AI
Celestial AI United States

We are excited to announce that Celestial AI is now part of Marvell Technology!

Acquired
60 employees
AI, Data Analytics
Compare Lightmatter vs Celestial AI
Lightmatter vs
Tachyum
Tachyum United States

Tachyum is disrupting data center, HPC, and AI markets by providing the world’s first Universal Proc...

Grant
41 employees
AI, Computing
View all alternatives

FAQ About Lightmatter

A Giant Leap
Lightmatter was founded in 2017.
Lightmatter is headquartered in Mountain View, United States. As of Sep 2026, it also has offices in Boston, United States and Toronto, Canada.
Lightmatter operates in AI, Hardware, Semiconductor and Machine Learning. Its work centres on photonic computing, AI hardware, next-generation computing and processor performance. Its customers include AI and data center operators, Hyperscalers and GPU cluster managers.
Lightmatter has a B2B, Platform and B2B2B business model. Its revenue comes from Product Sales and Licensing.
Lightmatter has approximately 375 employees.
Lightmatter has completed 5 funding rounds, raising a total of $422.00M. The latest funding stage is Series C.
Lightmatter offers: Development of photonic chips and interconnects, Provision of high-bandwidth, energy-efficient networking solutions, Manufacturing of co-packaged optics and light engines, Supporting frontier-scale AI model training and inference.
Top alternatives and competitors to Lightmatter include Neurophos, Celestial AI, Tachyum, d-Matrix, PsiQuantum. These companies operate in related industries and serve comparable markets. You can compare them side by side on Bounce Watch.
Lightmatter and Neurophos are both companies in similar industries. Compare their funding, team size, growth signals, and market position on Bounce Watch to see which one fits your needs.

Source: BounceWatch company record for Lightmatter, https://www.bouncewatch.com/company/lightmatter, updated 12 October 2026. When citing, please name BounceWatch and link this page.

Analytics cookies (ours + Google). Cookie Policy

Talk to an analyst Book a 7-day Readout