
David Yamaguchi
Attorney at Law
California
CA
"Took the time to explain all the steps and laid out my options clearly. Very experienced!"
About
clients
upcounsel
experience
Representative Clients
Practice Areas
Client Reviews
"Working with David Yamaguchi was an outstanding experience. He delivered a full suite of foundational legal documents for my tech startup—including NDAs, software development agreements, and master contractor agreements—with precision, clarity, and founder-first protection built into every line. David was responsive, efficient, and incredibly sharp when it came to aligning legal strategy with business goals. His ability to turn feedback into actionable revisions while keeping the documents clean and enforceable made the process smooth and stress-free. If you're a founder, entrepreneur, or growing business in need of high-quality legal work, I highly recommend David. He’s professional, detail-oriented, and clearly understands how to protect companies without overcomplicating things. Would absolutely work with him again."
"Great experience"
"Fast feedback, clear communication and great individual approach! Highly Recommend!"
"I had an excellent experience working with David Yamaguchi on drafting a business agreement. His clear communication made the entire process seamless, ensuring that every detail was well understood. He was highly responsive, addressing my questions quickly and thoroughly. His deep knowledge of business law was evident, and he provided valuable insights that helped strengthen the agreement. I highly recommend David Yamaguchi to anyone looking for a knowledgeable and efficient attorney."
"David was great to work with. He was so communicative helping us work through multiple legal documents for our LLC. I would definitely work with him again!"
"David is fantastic - he helped me draft agreements that were fair to all parties involved. He is knowledgeable and gives honest advice."
Work History
Seagen, Inc.
Outside Counsel
May 2022 - Present
Support Technology Procurement Group
Beyond Limits Inc.
Outside General Counsel
Jan 2014 - Present
Provide General Counsel and transactional services
Workday Inc.
Outside Counsel
Nov 2021 - Jul 2022
Support Software Partnership group
Roku Inc.
Outside Counsel
Dec 2019 - Feb 2022
SaaS, Sales and Procurement support
Intel Corporation
Outside Counsel
Jan 2013 - Nov 2019
Sales and Procurement Work
PacketVideo Corporation
Vice President and General Counsel
Nov 2006 - Dec 2012
Nokia Corporation
Group Counsel
Dec 2001 - Nov 2006
Citizens Communications
General Counsel
Dec 1999 - Nov 2001