SAC people help customers keep the world connected with new ideas, innovations and solutions. SAC is the #1 U.S. turnkey builder of wireless networks.

We put customers first. We encourage our people to grow and learn, work as one team, keep 100% safe, and act with integrity.

The SAC team includes more than 2,000 of the best and brightest people based in 25 offices across the country, building networks nationwide.

We help customers acquire and develop sites to build, commission, maintain, operate and upgrade wireless networks.


Cari Trevor Shyiak
Cari Trevor ShyiakChief Executive Officer
CEO since 2018, Cari joined SAC as Chief Operating Officer in 2016. He brings SAC more than 30 years of telecom experience. He is responsible for leadership, organization and process improvements to increase SAC’s visibility, customer satisfaction, and operational effectiveness.

Before joining SAC, Shyiak worked in North America, Europe and Asia as Managing Partner of the North Star Management Group, Chief Operating Officer of Goodman Networks, Senior Vice President at Alcatel-Lucent, and Vice President at Lucent Technologies. Previously, he worked at Airtouch International and Rogers Wireless Communications.

Shyiak holds an Executive Master of Business Administration degree from the International Institute for Management Development.

Scott Pomykalski
Scott PomykalskiChief Development Officer
Scott joined SAC in 2010. He brings SAC 26 years of experience in the construction industry. He is responsible for SAC sales, marketing and client relationships, which includes developing SAC clients across new vertical markets, and expanding market share with existing customers.

Before joining SAC, Pomykalski owned and operated a successful construction and development business for 18 years, specializing in commercial and industrial projects. Upon joining SAC, Pomykalski led efforts resulting in over 10X revenue growth.

Joseph Sanzo
Joseph SanzoChief Strategy Officer
Joe joined SAC in 2006 as Chief Operating Officer. He brings SAC 28 years of telecom experience. He is responsible for developing growth strategies and implementing a new enterprise resource planning platform.

Before joining SAC, Sanzo worked in North America, Asia, Australia and Europe as Vice President-Operations of CH2M Hill and Managing Vice President-Professional Services of Lucent Technologies. Previously, he worked at Phoenix Wireless, Comsearch, KDC, LCC Incorporate and the NASA Goddard Space Flight Center.

Sanzo holds a bachelor’s degree in Computer Science from Radford University.

Chris Bondurant
Chris BondurantChief Operating Officer
Chief Operating Officer since 2018, Chris joined SAC in 2018. He is responsible for Customer Delivery, Supply Chain, the PMO (project management office), and Professional Services, including all site acquisition and site development activities and strategies.

Before joining SAC, Bondurant was an assistant vice president at AT&T from 1998 to 2017. He was responsible for network construction and engineering.

Bondurant holds a bachelor’s degree in Business Administration and Management from the University of Mississippi.

Jonathan McKinley
Jonathan McKinleyChief Field Services Officer
Chief Field Services Officer since 2018 and an SAC co-founder, Jonathan has served SAC in leadership roles since 1996. He is currently responsible for SAC’s 100+ tower construction crews, creating a best-in-class construction organization focused on safety, quality and production, and building SAC’s 5G and small-cell business.

Initially focused on site acquisition, under McKinley’s leadership, SAC expanded into construction in 1999 and entered architecture and engineering (A&E) by acquiring Alcoa’s Wireless A&E Division in 2006. McKinley served as Executive Vice President for Professional Services, with responsibility for site acquisition services, the SAC Engine Room and A&E services, following SAC’s acquisitions by Hall Capital Partner in 2008 and by Nokia in 2014.

Michael Foy
Michael FoyChief Financial Officer
Michael joined SAC in 2018. He brings SAC more than 30 years of financial experience and is responsible for financial reporting and controls, financial planning, forecasting and analysis.

Before joining SAC, Foy worked as Chief Financial Officer of Inventus Power Inc., Vice President and Chief Financial Officer of the Americas for Cisco Systems Inc., and Chief Financial Officer of Software AG. Previously, he worked at 3COM/US Robotics, Abbott Laboratories, and KPMG.

Foy holds a bachelor’s degree in Business Administration from the University of Notre Dame and is a Certified Public Accountant.

Michael F. Petrak
Michael F. PetrakVice President-Human Resources
Michael joined SAC in 2017. He brings SAC 27 years of experience in human resources. He is responsible for scaling up human resources functions, talent acquisition, talent management, learning and development, and employee communications.

Before joining SAC, Petrak was Vice President-Human Resources of Fuel Tech Inc. Previously, he worked at Tellabs, Zebra Technologies, and Amsted Industries.

Petrak holds a Master of Business Administration degree from DePaul University and a bachelor’s degree in Business Management from Northern Illinois University.

Katariina Kujala
Katariina KujalaGeneral Counsel
Katariina joined SAC in 2015. She brings SAC more than 20 years of legal and telecommunications experience. She is responsible for SAC’s legal and compliance affairs.

Before joining SAC, Kujala served as the Regional General Counsel for North America at Nokia. Previously, Kujala worked in private practice in Helsinki, Finland.

Kujala holds a Law Degree from the University of Helsinki School of Law (Juris Doctor), Finland, and a Master of Laws (LL.M.) from Duke University School of Law.