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Lightmatter: Valuation, Funding & Investors

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Mountain View, California, United Stateslightmatter.coAdvanced Manufacturing

Lightmatter develops photonic chips that enable data processing and communication using light instead of electricity.

Estimated Valuation

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$25$50$75$100Nov '23May '24Nov '24May '25Nov '25May '26Nov '26

Leadership & Board

Key Executives

Founder & Chief Scientist
Darius Bunandar
Head of Product
Sudarshan Yadav
Founder, CEO
Nicholas Harris
Vice President of Sales
Bob Turner
Current Number of Employees
375
Current LinkedIn Followers
69,702

Latest Estimated Valuation

Total Amount Raised
$400M
Total Funding Rounds
1
Latest Funding Amount
$400M
Latest Funding Round
Series D

Company Momentum

Positive
Articles Published on TipRanks1
LinkedIn Trend+0.31% followers
Workforce Trend+0.0% employees

Lightmatter LinkedIn following is increasing, signaling rising market interest, while its workforce is growing, indicating business expansion.

Employee Trend

Lightmatter had 375 employees as of November 2, 2026. The number of employees increased by 0 (0.00%) week-over-week.

375Latest Employee Count
0(0.00%)Week-Over-Week Change
0100200300400Jul 20, 2026Aug 03, 2026Aug 17, 2026Aug 31, 2026Sep 14, 2026Sep 28, 2026Oct 12, 2026Oct 26, 2026

Social Trend

Lightmatter had 69,702 followers as of November 2, 2026. The number of followers increased by 215 (0.31%) week-over-week.

69,702Latest Followers Count
215(0.31%)Week-Over-Week Change
020,00040,00060,00080,000Jul 20, 2026Aug 03, 2026Aug 17, 2026Aug 31, 2026Sep 14, 2026Sep 28, 2026Oct 12, 2026Oct 26, 2026

Funding Round

Funding DateFunding RoundAmount RaisedPost-Money Valuation
Nov 16, 2024Series D$400.00M―

Investors

Investor NameFunding Round
T. Rowe PriceSeries D

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Related News and Analysis

Lightmatter Showcases Bidirectional Link Architecture for Large-Scale GPU Interconnects

Lightmatter Showcases Bidirectional Link Architecture for Large-Scale GPU Interconnects

According to a recent LinkedIn post from Lightmatter, the company is drawing attention to technical constraints in scaling GPU-based systems using copper and optical interconnects. The post notes that large-scale
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TIME Recognition Highlights Lightmatter’s Photonic AI Infrastructure

TIME Recognition Highlights Lightmatter’s Photonic AI Infrastructure

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Lightmatter Showcases Co-Packaged Optics Hardware for Hyperscale Data Centers

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According to a recent LinkedIn post from Lightmatter, the company is showcasing new co-packaged optics (CPO) hardware at the 2026 OCP Global Summit in collaboration with Flex and other partners.
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Lightmatter Advances Open Rack Photonic Infrastructure With New CPO Switch and XPU Server Trays

Lightmatter Advances Open Rack Photonic Infrastructure With New CPO Switch and XPU Server Trays

New updates have been reported about Lightmatter. Lightmatter has introduced two Open Compute Project–aligned photonic systems that put its Passage co‑packaged optics and Guide DR laser modules at the center
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Lightmatter Highlights Silicon Photonics Strategy To Address AI Data Center Energy Limits

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According to a recent LinkedIn post from Lightmatter, the company is spotlighting the growing energy constraints in data centers as copper interconnects reach physical limits. The post points to heat
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Leadership Recognition Highlights Lightmatter’s Depth in AI Photonics

Leadership Recognition Highlights Lightmatter’s Depth in AI Photonics

According to a recent LinkedIn post from Lightmatter, senior principal product manager Dr. Jessie Rosenberg has been named a nominee for the Global Semiconductor Alliance 2026 WISH Rising Women in
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Recognition Highlights Lightmatter’s Role in Next-Generation AI Infrastructure

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According to a recent LinkedIn post from Lightmatter, the company has been included in Fast Company’s Next Big Things in Tech 2026 list in the “Mid-Market Mavericks: 100–499 Employees” category.
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Lightmatter Seen Aligning With Ecosystem Efforts Around Co-Packaged Optics for AI Data Centers

Lightmatter Seen Aligning With Ecosystem Efforts Around Co-Packaged Optics for AI Data Centers

A LinkedIn post from Lightmatter highlights co-packaged optics, or CPO, as an emerging engine for scaling data centers as AI workloads increase bandwidth and power demands. The post emphasizes that
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Lightmatter Highlights Role in OCP Summit Session on Silicon Photonic Data Center Architectures

Lightmatter Highlights Role in OCP Summit Session on Silicon Photonic Data Center Architectures

A LinkedIn post from Lightmatter highlights the company’s participation in an upcoming session at the OCP Global Summit focused on the Modular Hardware System workstream for high-bandwidth silicon photonic interconnects.
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Lightmatter Highlights Photonic Interconnect Platforms at OCP Global Summit

Lightmatter Highlights Photonic Interconnect Platforms at OCP Global Summit

According to a recent LinkedIn post from Lightmatter, the company plans to showcase its photonic interconnect hardware and systems at the OCP Global Summit. The post highlights the Passage platform,
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