Don Keller, a partner in the Silicon Valley office, is a member of the Technology Companies Group.

Don advises high growth technology companies, public companies, venture capital firms and investment banks. He has advised clients on more than 60 public offerings, 75 acquisition transactions and several hundred venture financings.

Chambers USA recognized Don for his work in the areas of Venture Capital and Startups & Emerging Companies Department, noting he "is valued for his knowledge of venture capital firms and his strength in advising technology companies on public offerings, acquisition transactions and venture financings. One client insists that 'I would not dream of starting a company without him as my outside counsel.'" (2018)

Don has held many leadership positions at Orrick. Don currently leads Orrick’s Technology Sector, which is one of the three focus areas (along with energy and finance) for the firm. Don is a former member of Orrick’s Board of Directors, served as head of the firm’s global corporate practice,  served as head of the firm’s Silicon Valley Office and served as co-head of the firm's diversity efforts. 

Don also previously served for many years on the Executive Committee of Venture Law Group.

Don has recently represented companies being sold in the following transactions: Wavefront to VMware; Nervana to Intel; TOA to Oracle; Altiscale to SAP; Twin Prime to Salesforce; 3Scale to Red Hat; Vendavo to Francisco Partners; Yieldex to AppNexus; and LS9 to Renewable Energy Group.

Don has worked on transactions for  Google (Nasdaq GS: GOOG), Oracle (Nasdaq GS: ORCL), Tibco (Nasdaq GS: TIBX), Adaptec (Nasdaq GS: ADPT), Shutterfly (Nasdaq GS: SFLY), Martha Stewart Living Omnimedia (NYSE:MSO), Sum Total Systems (Nasdaq GS: SUMT) and Rambus (Nasdaq GS: RMBS). He also has represented many investment banking clients in public offering transactions, including representing Goldman, Sachs & Co. in offerings for many issuers.

Don is a past member of the Board of Overseers of Boston College Law School.

  • Some of Don's clients include:

    • Avaamo (funded by Intel Capital and others)
    • Avegant Corp. (funded by Intel Capital and others)
    • Bitrock (funded by angels)
    • Change Research (funded by angels)
    • ClearCost Health (funded by angels)
    • Crosslink Capital
    • eHarmony
    • Eversight (funded by Emergence and Sutter Hill)
    • Fidelity
    • Foody Direct (funded by founder and angels)
    • Frame (funded by CNTP, Microsoft and Bain Capital)
    • GLM (funded by Sutter Hill)
    • Lava (founded by Vivek Ranadive)
    • Mezu (funded by Draper Triangle Ventures)
    • NakedPoppy (funded by Polaris, Cowboy Ventures and Khosla Ventures)
    • New Globe (funded by NEA and others)
    • Parley Pro (funded by Cloud Apps Capital Partners and others)
    • Pica8, Inc. (funded by VantagePoint and others)
    • PocketWatch (funded by Third Wave Ventures and others)
    • SailThru (funded by Benchmark, Scale and RRE)
  • Don has represented the company or the underwriters in the following initial public offerings:

    • Acuate Corporation
    • Asante Technologies, Inc.
    • Atmel Corporation
    • Baan
    • Corporation
    • Cadence Systems Corporation
    • CKS Group
    • Collaborative Research, Inc.
    • Connect, Inc.
    • Creative Technologies Ltd.
    • Delphi Systems
    • E Tek Dynamics
    • Electronic Arts
    • ELoan, Inc.
    • Geocities
    • Inference Corporation
    • Infinity Financial Corporation
    • Inktomi Corporation
    • Integrated Systems, Inc.
    • MIPS Technologies, Inc.
    • MSI Data Corporation
    • Paradigm Technology
    • PC Order
    • Peoplesoft
    • Pilot Networks
    • Silicon Valley Group
    • Tenfold Corporation
    • Trident Microsystems
    • Vestar, Inc.
    • Vitalink
    • Worlds of Wonder

    Don has represented the company or the underwriters in the following other public offerings:

    • Adobe Systems Corporation (secondary offering)
    • Amgen (follow on offering)
    • Atmel (multiple offerings)
    • Autodesk (follow on offering)
    • Baan (follow on offering)
    • Cadence Design Systems (follow on offering)
    • CKS Group (follow on offering)
    • Collagen (follow on offering)
    • Consolidated Freightways (debt offering)
    • Creative Technologies Ltd. (follow on offering)
    • General Cinema Corporation (debt offering)
    • Nordstrom Credit (multiple debt offerings)
    • Oracle Corporation (multiple offerings)
    • Pacific Gas & Electric Company (multiple debt offerings)
    • Peoplesoft (follow on offering)
    • Quantum (follow on offering)
    • Transamerica (multiple debt offerings)
    • Vestar (follow on offering)
    • Worlds of Wonder (follow on offering)