COMPANY PROFILE · UPDATED 18 NOV 2025

Lightmatter

Lightmatter, Inc. operates as a computer hardware company. The Company provides hardware solutions to create computing platform purpose-built for artificial intelligence. Lightmatter serves clients in the United States.

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Founded: 2017
Headcount: 162
Open roles: 70
Last raised: Series D · Sign in to view

TECH STACK

How Lightmatter builds

Extracted from Lightmatter’s job postings we’ve tracked

Programming Languages

Python×52 MATLAB×17 Verilog×8 C++×5 SystemVerilog×5

Other Software & Platforms

Foundry×14 ANSYS×5 Ansys HFSS×5 reStructuredText×4

DevOps & Infrastructure

Git×8 Linux×6 CMake×4 GDB×4

Design Tools

SolidWorks×6 Altium Designer×5 AutoCAD×3

Data Engineering & Warehousing

Microsoft Fabric×10

Frameworks & Libraries

Metal×4 NumPy×4

Collaboration & Productivity

Smartsheet×4

LEADERSHIP

Founders & key people

Thomas Graham

COO at Lightmatter

Lightmatter

Greg Hausheer

Ben Beecher

Nicholas Harris

CEO at Lightmatter

LightmatterMassachusetts Institute of Technology (MIT)Micron TechnologyBerkeley YeastDone.University of IdahoMassachusetts Institute of Technology (MIT)Boise State University

Darius Bunandar

Chief Officer at Lightmatter

LightmatterMassachusetts Institute of Technology (MIT)Sandia National LaboratoriesCaltechBakerRiskUniversität WürzburgMassachusetts Institute of Technology (MIT)The University of Texas at Austin

OPEN ROLES

Hiring at Lightmatter

View all 70 open roles →

FUNDING

Capital raised

Total raised

$822,000,000

Investors

Spark Capital GvAXIAL PartnersBossa Nova InvestimentosEastward Capital PartnersFidelityGETTYLABHewlett Packard EnterpriseLockheed Martin VenturesMatrixSBXiSIP Global PartnersT. Rowe PriceTrajectory VenturesViking Global Investors

Funding rounds

Series D
T. Rowe Price, Fidelity, GV, Bossa Nova Investimentos
$400MOct 15, 2024
Series C
GV, Viking Global Investors, SIP Global Partners, Eastward Capital Partners, AXIAL Partners
$155MDec 18, 2023
Series C
Viking Global Investors, SIP Global Partners, Fidelity, GV, Hewlett Packard Enterprise, Trajectory Ventures
$154MMay 30, 2023
Series B
Viking Global Investors, SIP Global Partners, GV, Spark Capital, Hewlett Packard Enterprise, Matrix, GETTYLAB, Lockheed Martin Ventures, SBXi
$80MApr 5, 2021
Series A
GV, Matrix, Spark Capital
$22MFeb 25, 2019
Series A
Matrix, Spark Capital
$11MFeb 4, 2018