Peter H. Werner

Partner in Charge – San Francisco
Full contact info

On a daily basis, I interact with some of the smartest, most inspirational, hardworking people on the planet. Being able to play even a small role in the growth and success of their companies and in the proliferation of their ideas is highly rewarding.

About Peter

Peter is co-chair of Cooley’s global emerging companies and venture capital practice group and vice chair of Cooley’s global business department. Peter’s practice primarily focuses on the representation of high-growth companies and their investors. He regularly assists clients with financings and mergers & acquisitions, in addition to entity formation, governance matters and securities transactions. Peter is the partner in charge of Cooley’s San Francisco office, and he is a member of Cooley’s firmwide mental health and wellness committee.

Peter also is one of the founders and curators of Cooley GO, a microsite with tools, forms, guidance, and data for entrepreneurs and emerging companies.

Peter represents companies across many of the industries that are most prominent in the startup ecosystem in the San Francisco Bay Area and beyond, including artificial intelligence, consumer products, fintech, insurtech, spacetech, enterprise software and digital health. His clients include AgentSync, Allbirds, Almanac, AngelList,, Ceres Imaging, Cotopaxi, Cover, Crafty, Cresta, DigiSure, Embodied Intelligence, Enlitic, Framer, Full Harvest, Fundbox, Graft, Hadrian, Handle, K2 Space, Lattice, LeaseLock, Limit Break, LoveFrom, Lytics, Matic, Medely, Mill, NEXT Trucking, nTop, Origin Materials, Particle, Polywork, Remedy Robotics, Swing Education, System, VSCO, Varda and Verifiable.

Investors Peter has recently represented include 01 Advisors, Accel, Amplify Partners, Andreessen Horowitz, Anthos Capital, Better Ventures, BlueCross BlueShield Venture Partners, Coatue, Founders Fund, General Catalyst Partners, Mucker Capital, Nano Dimension, Polaris Partners, Root Ventures, Cultivian Sandbox, SoftBank Vision Fund, Telstra Ventures and Temasek.

Mergers & acquisitions on which Peter has worked include the sale of to Niantic; the sale of 100+ to Practice Fusion; AOL’s purchase of Vidible; the sale of Aggregate Knowledge to Neustar; the sale of Airpost to Box; the sale of Baton Trucking to Ryder; the sale of DeskConnect to Apple; the sale of eMeter to Siemens; the sale of ContainerX to Cisco; the sale of Earnest to Navient; the sale of Emailage to LexisNexis Risk Solutions; the sale of Frontleaf to Zuora; Granular’s sale of its soil testing business to Monsanto; the sale of Granular to DuPont/Pioneer; the sale of Harbor to BitGo; the sale of Ingenuity Systems to QIAGEN; the sale of LookFlow to Yahoo; the sale of OneFinance to Walmart’s fintech venture; Opera Software’s purchase of Handster; Olive Al’s purchase of Verata Health; the sale of Ringadoc to Practice Fusion; the purchase by of Assistly; the sale of Sora to ADP; the sale of StackCommerce to TPG; the sale of Stemma to Teradata; Sverica International’s sale of Accuvant to Blackstone and Sverica’s purchase of 7Summits; the sale of TravelBank to US Bank; the sale of Vibrant Data to Slice Technologies (Rakuten); VSCO’s purchase of Rylo and Trash; the sale of Wagon to Box; the sale of Wand Labs to Microsoft; and the sale of Zeega to BuzzFeed.

Peter serves on the board of directors of the Full Circle Fund, a nonprofit engaged philanthropy organization, and Imagine H2O, a nonprofit organization accelerating solutions to water challenges. He also serves as a mentor at MuckerLab, a Los Angeles-based startup accelerator.


University of Chicago Law School
JD, 2001, with honors, John M. Olin Law and Economics Fellow

University of California, Berkeley
BA, 1997, with honors

Rankings & accolades

Chambers USA: Startups & Emerging Companies – Nationwide (2023)

Super Lawyers: Northern California Rising Star

The Legal 500 US: Leading Lawyer in Venture Capital and Emerging Companies (2023)

Memberships & affiliations

American Bar Association

The Bar Association of San Francisco