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Mark Johnson

Mark Johnson business lawyer Washington D.C.

Attorney, Member of the Firm
Email: mjohnson@outsidegc.com

Mark Johnson is a highly skilled privacy lawyer with over 20 years of experience in both private practice and in-house in the Washington, D.C area. Working with clients across a broad range of industries, including e-commerce, SaaS, online advertising, healthcare, educational, gaming, telecommunications, location and data mining providers, Mark regularly advises on issues relating to:

  • CCPA, GDPR and other privacy law compliance matters
  • Drafting, updating and implementation of public-facing privacy policies, as well as client-internal policies and training materials
  • Data breach notification and mitigation efforts
  • Drafting and negotiation of data processing agreements and other contracts related to data processing and transfer arrangements

His privacy clients at Outside GC include Megaphone (a subsidiary of Slate), Florence Healthcare, UST Global, Simpli.fiand Jaanu. He is also a Certified Information Privacy Professional (CIPP/US) and Certified Information Privacy Manager (CIPM).

In addition to his privacy work, Mark also has significant experience representing nonprofit organizations, including 501(c)(3) charitable organizations and 501(c)(6) industry trade associations; and for more than 10 years, has served as outside General Counsel to the OmniAir Consortium, a Washington, D.C. trade association with transportation- and telecommunications-related concerns. He also represents clients in the telecommunications and transportation industries, including Tata Communications, a leading global digital infrastructure provider. For over two decades, Mark has handled transactional matters, as well as regulatory issues and policy matters, in this space. He works closely with several federal regulatory agencies, including the Federal Communications Commission, U.S. Department of Transportation, U.S. Department of Commerce and the U.S. Congress.

Prior to joining the firm, Mark was a Senior Attorney in the Washington, D.C. office of the international law firm, Squire Patton Boggs, as a member in its Telecommunications and Data Privacy practice groups. Previously, Mark was Deputy General Counsel for the Intelligent Transportation Society America, a technology and transportation trade association. 

Mark received his JD from the American University Washington College of Law, where he served as Executive Articles Editor of the Law Review. He is a member of the Washington, D.C. and Virginia Bars. 

Mark is a fluent Spanish speaker and lived and worked in Buenos Aires, Argentina from 2006 to 2009. He currently serves on the Board of Directors of Escuela Argentina, a part-time Spanish-language school in Potomac, Maryland. Mark is also very involved with kids’ soccer club, spending many weekends on the sidelines cheering on his son and daughter.