The TellApart team includes some of the best minds from online retail, finance and software companies like Google, Oracle and LinkedIn. We bring a unique blend of skills and perspectives which help us reinvent the way e-commerce data is stored, managed and utilized to drive incremental revenue growth for our clients.

Josh McFarland, Founder & CEO

While serving as an Entrepreneur in Residence at Greylock Partners, Josh worked with Mark to incubate TellApart and also advised the firm in the areas of consumer Internet products and their monetization. Prior to this, he spent over five years at Google as a lead Product Manager on many of its advertising platforms including AdWords, Audio Ads and Google's display ads efforts. He has held senior product management roles at a number of top venture-backed startups and earned his Bachelor's degree with distinction in Economics at Stanford, where he was a Mayfield Fellow.

Mark Ayzenshtat, Founder & CTO

In the nine months leading to TellApart's founding, Mark was also an Entrepreneur in Residence at Greylock Partners. Prior to this, he was a Senior Software Engineer for four years at Google, having started and led several high profile projects including the Android Marketplace, the AdWords API, and natural language processing-based improvements within the core Search Quality team. Mark earned his Bachelor's degree in Computer Science from Columbia University.

Josh and Mark worked together closely at Google too, founding the AdWords API team in 2004. This team brought to market the world's largest commercial API, which today interacts with well over half of Google's total revenue and in late 2008 won Google's prestigious all-company EMG Award.