Since 2004, Amplitude Digital has been helping connect great companies with their clients online with efficiency, purpose and style.

Amplitude Digital, a leading SEO and PPC digital marketing agency in Los Angeles, delivers sales and leads through data-centric strategies that reduce wasteful media spend and maximize ROI. Our award-winning combination of technology and talent excels with performance-based strategy, high-touch communication, efficient spending and transparent reporting to produce stellar results every time.

We are a recipient of the Los Angeles Agency Award of Excellence, recognizing our efforts in Paid Search, Search Engine Optimization, Facebook Ads, Display Media, Native Ads and Amazon.

Clients depend on Amplitude’s veteran search experts, deep analytic understanding and real-time data dashboards to keep one step ahead of competition at all times.

Since 2004, we’ve helped leading brands such as Toyota, The Hollywood Sign, Spafinder, Experian, McKesson and Costco exceed their goals. For more information, visit AmplitudeAgency.com or follow us on Twitter @AmplitudeAgency.


  • Founded in 2004 in Los Angeles, CA
  • Principals average 20 years of digital marketing experience
  • Strength in financial services, wellness, healthcare, automotive, retail ecommerce and non-profit
  • Leadership experience from Fortune 15 to early-stage startup
  • Winner: 2016 Los Angeles Advertising Agency Award
  • Winner: 2016 Softech International Business Awards


Amplitude was built by a small team of principals averaging over 20 years each in marketing experience for great companies both large and small.

Partner, Founder

Company founder Duff Ferguson has created and implemented high quality communication programs for companies ranging from Fortune 15 to pure startup, in industries as diverse as global financial services, technology, healthcare and entertainment. His national issue advocacy programs have increased medical safety awareness, opened emerging markets and influenced financial industry regulatory policy.

He has been a trusted advisor on internal and external communications, CEO communications, branding, corporate philanthropy, sponsorship, and community relations.


Joe Livingston joined Amplitude Digital in 2015 with the acquisition of Konnect Digital Media, an ecommerce agency he founded in 2013. At Amplitude, Joe oversees all digital media efforts including PPC, SEO, email and conversion rate optimization. With almost 20 years of online marketing experience, Joe has worked with organizations including Costco, PayPal, AOL, Hostway, Dr. Schulze, Microsoft, Goldline, American Greetings and Target.

From 2010 to 2013, Joe worked closely with Google on beta testing and was recognized for managing multi-million dollar search and display campaigns, being invited to speak about display advertising at Google’s 2011 national conference.

Joe has also served as a consultant for the 35th Director of the United States Mint, Philip N. Diehl, and in 2003 was a recipient of CUNA Marketing Council’s Diamond Award.


Life is too short to spend in a job you hate! At Amplitude, we push the envelope together every day for our clients, keep learning and never rest on our laurels. We also have a lot of fun along the way. Sound like your kind of company?


Client Acquisition Sales Executive

SEO Director

SEM / PPC Director

Digital Marketing Account Manager