Our Team

These are the people who make SIGMA strong!

From the leadership team that strategically directs the organization, to the development team who provides a solid foundation for coding, cleaning and creating outstanding databases, to the data insights team who have perfected the recipe that makes the magic happen, to our account services team – the best in the business – we are completely dedicated to our clients and their goals.

Stefan Willimann

Stefan Willimann

CEO
Data proves concepts and data transforms business.

Paul Raca

Paul Raca

EVP, Data Science
Data excites me because it loves all of my questions and always has an interesting answer…usually one that leads to another question!

Gregg Sullivan

Gregg Sullivan

EVP, Account Services and Strategy
Data excites me because it is the central point of truth.

Michelle Tahara

Michelle Tahara

VP, Finance and Administration
Data excites me because I love looking at numbers.  I love even more when things tend not to always fall into place and love the challenge of finding out why and how to fix it!

Adam Smith

Adam Smith

Data Scientist
Data excites me because it helps make our world ever better.

Ben Husband

Ben Husband

Data Scientist
Data excites me because it is an input to fact-based decision making.

Stacy Xu

Stacy Xu

Data Analyst
Data excites me because it has natural sound and rhythm waiting to be transcribed!

Robert Morris

Robert Morris

Data Analyst
Data excites me because of how often it surprises you with evidence to the contrary of claims that you thought were rock solid just 30 seconds ago.

Frank Sanseri

Frank Sanseri

IT Director
Data excites me because it is the best and most complete way to view the world. It uncovers gems of truth, and leads to insight about of everything.

Brett Markham

Brett Markham

Database Developer
Data excites me because it’s like a puzzle: with the right key you can unlock insights.

Andres Gonzalez

Andres Gonzalez

Database Developer
Data excites me because of patterns. Patterns in data are fun to analyze and find trends.

Scott Tria

Scott Tria

IT Support Specialist
Data excites me because it’s just what I do. Data works for me!

Melissa Beedham

Melissa Beedham

Account Director
Data excites me because of the extent to what is has to offer.  The more diving in, discovering and understanding what is available allows us to put a story together.

Ruth Altpeter

Ruth Altpeter

Senior Account Director
Data excites me because it holds hidden gems that we can uncover for our clients to help them solve challenges or, even better, see new opportunities.

Sue Eichorn

Sue Eichorn

Senior Account Director
Data excites me because of its power and the valuable insights it can uncover.

Mallory Tabolt

Mallory Tabolt

Senior Account Manager
Data excites me because it helps shape and evolve client strategy.

Teddy Malone

Teddy Malone

Account Manager
Data excites me because it is more real than real.

Julia Mezzoprete

Julia Mezzoprete

Account Manager
Data excites me because it allows me the opportunity to answer questions and make logical decisions on the data all the while increasing the ability for positive proactive data based decisions.

Rich Sutton

Richard Sutton

VP, Account Development
Data excites me because of the potential it unlocks in the expansion of business.

Zac Yousey

Zac Yousey

Manager, Multi-Channel
Data informs strategy for more relevant, personalized, and targeted messaging.

Laurie Gilzow

Laurie Gilzow

Human Resources
Data excites me because it provides detailed insight to help answer life’s questions for business, home, or self.