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Stanford University, BS 2000
Mathematical and Computational Science

Current Companies

Co-Founder & CTO

Former Companies

Sr Scientist
Sr. Analytics Scientist
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Former Financial Organizations

Women's Squash Coach
Growth Hacker-In-Residence

Web Presences


Mike Greenfield

Mike is co-founder of TeamRankings. After graduating with honors from Stanford University with a B.S. in Mathematical and Computational Science, Mike served as an early employee of PayPal, where he designed and built some of the company’s first fraud prevention models as a Senior R&D Scientist. He then moved on to manage the analytics team at LinkedIn, gathering and processing intelligence about the patterns and behaviors of millions of site users. Inspired to create objective and sophisticated methods to more accurately gauge the performance of sports teams, Mike started the original web site from his Stanford dorm room in 2000. In addition to his current role with Team Rankings, Mike is also co-founder and CTO of, the creator of Circle of Friends, one of the fastest growing applications on Facebook and Bebo. He is a rabid Stanford basketball fan and served as the captain of the Stanford squash team while a student, and as the coach of the Stanford women’s squash team after graduating.

Recent Milestones


Company Date Round Size Participants
BabyList 6/2013Seed$620k5
Hullabalu 5/2013Seed$1.8M19
Cover pay 5/2013Seed$1.5M14
Kicksend 4/2013Seed$1M8
Reclip.It 6/2012Seed$70k3
Datahero 5/2012Seed$1M7



  1. BabyList, A Universal Baby Registry Built By An Ex-Amazon Developer & Mom, Raises $650K ( [edit]
  2. To Spark Children’s Imaginations, Hullabalu Raises $1.8 Million From SV Angel, Great Oaks & Others For iPad Storytelling App ( [edit]
  3. Cover Raises $1.5M From OATV And Others To Bring Uber-Like Payments To Restaurants ( [edit]
  4. Citation Needed [add]
  5. [edit]
  6. Datahero Wants To Democratize Data Visualization And Analysis, Raises $1M Round Led By Foundry Group ( [edit]
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Last Edited 3/14/14

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