COMPANY PROFILE · UPDATED 22 SEP 2026

Atrium LTS

Atrium is a full-service corporate law firm that uses modern technology to give startups a legal experience that is fast, transparent, and price-predictable.

Bozeman, MT · San Francisco, CA

www.atrium.co ↗

Legal, Gov & Public Sector AI & Machine Learning Legal Tech AI Infrastructure B2b Software And Services San Francisco 61-150 Management Consulting Legal Y Combinator Companies In San Francisco Software Companies In San Francisco Financial Services Companies Sofware Companies In San Francisco First Round Capital Portfolio Companies In San Francisco A16z Portfolio Companies In San Francisco Series B Has Woman Founder

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Founded: 2017
Headcount: 22
Open roles: 0
Last raised: Series B

LOCATIONS

Where they work

Atrium LTS offices

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Bozeman, MT
San Francisco, CA260 Townsend Street Suite 400

FUNDING

Capital raised

Total raised

$75,500,000

Investors

Y Combinator First Round Capital 500 Startups Kleiner Perkins Sv Angel Founders Fund Greylock Slow Ventures Initialized Capital Andreessen Horowitz Caffeinated Capital Quiet Capital General Catalyst Shasta Ventures Soma Capital Struck Capital Aarjav Trivedi Adrian Aoun Alan Arman Amitt Mahajan Andrew Chen Argonautic Ventures Ari Kardasis Armaan Ali Arram Sabeti Avichal Garg BEENEXT Balance Ventures Bennett Rogers Binary Capital BoxGroup Brainchild Holdings Brent Goldman Brian Goodman Brian Shin CSC Upshot Ventures Chang Charles Forman Charlie Songhurst Chris Fanini DCM David Schellhase Desmond Lim Dharmesh Shah Early Impact Ventures Emmett Shear Eusden Shing Gil Penchina Greenoaks Human Capital Immad Akhund JSV Jack Newton Jason Tan Jenny Haeg John Hering Jon Dahl Josh Buckley Karim Atiyeh Kevin Lin Kindred Ventures Kyle Vogt Lee Linden Liquid 2 Ventures Loren Straub Manish Shah Matt Brezina Matt Gamache-Asselin Maxim Basov Michał Borkowski Mike Ghaffary Mikhail Seregine NEA - New Enterprise Associates Notable Capital Oriza Ventures Outlander Fund I Archimedes Palapa Ventures Palm Drive Capital Paul McKellar Ranidu Lankage Rene Reinsberg Robin Chan Ruchi Sanghvi S2 Capital Sam Altman Samvit Ramadurgam Saurabh Gupta Scott James Signia Venture Partners Socii Capital Sohail Prasad Sound Ventures Steve Jang Sujay Tyle Tekton Ventures Thrive Capital Tikhon Bernstam Travis VanderZanden UpHonest Capital Wayne Chang Wei Guo

Funding rounds

Series B
Andreessen Horowitz, Y Combinator, Sound Ventures, Socii Capital, Quiet Capital
$65MSep 9, 2018
Series A
General Catalyst, 500 Startups, Outlander Fund I Archimedes, BEENEXT, Binary Capital, BoxGroup, Brainchild Holdings, Caffeinated Capital, Founders Fund, Notable Capital, Greylock, Initialized Capital, JSV, Liquid 2 Ventures, Oriza Ventures, Palapa Ventures, Palm Drive Capital, Signia Venture Partners, Slow Ventures, Soma Capital, Struck Capital, SV Angel, Tekton Ventures, Thrive Capital, Balance Ventures, NEA - New Enterprise Associates, Mike Ghaffary, First Round Capital, Aarjav Trivedi, Adrian Aoun, Amitt Mahajan, Andrew Chen, Ari Kardasis, Alan Arman, Arram Sabeti, Avichal Garg, Bennett Rogers, Charlie Songhurst, David Schellhase, Emmett Shear, Gil Penchina, Immad Akhund, Kleiner Perkins, Kyle Vogt, Matt Gamache-Asselin, Ranidu Lankage, Michał Borkowski, Wayne Chang, Travis VanderZanden, Tikhon Bernstam, Ruchi Sanghvi, Loren Straub, Chris Fanini, Eusden Shing, Matt Brezina, Karim Atiyeh, Maxim Basov, Mikhail Seregine, Rene Reinsberg, DCM, Lee Linden, Sujay Tyle, Brent Goldman, Brian Goodman, Charles Forman, Desmond Lim, Kevin Lin, Paul McKellar, Early Impact Ventures, Armaan Ali, Brian Shin, Josh Buckley, Dharmesh Shah, Jack Newton, Jason Tan, Jenny Haeg, John Hering, Jon Dahl, Manish Shah, Robin Chan, Saurabh Gupta, Scott James, Steve Jang, Wei Guo, Argonautic Ventures, Shasta Ventures, Kindred Ventures, Samvit Ramadurgam, S2 Capital, Sohail Prasad, Human Capital, Chang, UpHonest Capital, CSC Upshot Ventures, Sam Altman, Greenoaks
$10.5MJun 14, 2017

Funding data via Diffbot, SEC EDGAR filings and company announcements — a round from a filing or announcement links to it

OPEN ROLES

Roles at Atrium LTS

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LEADERSHIP

Founders & key people

Justin Kan

American internet entrepreneur

YouTubeFractalResumeGemPhenomenCitconSeekmiYale UniversityUniversity Preparatory AcademyY CombinatorEvergreen Middle School

Bebe Chueh

CEO at Basis

AtriumAI IncubeBasisUniversity of Illinois College of Law

Chris Smoak

CTO at Atrium

Atrium Windows & DoorsVolume11 MediaAnchor HealthDigital BrickAmazon.com Inc.Amazon Web ServicesCarnegie Mellon University

Augie Rakow

Owner at BetterSeriesA.co

BetterSeriesA.coLaw Office of Augie RakowPalo Alto Legal SupportAtherton RanchAtriumOrrick Herrington & SutcliffeHastings College of the LawHarvardUniversity of California Berkeley