| Michael S. Irizarry |
Michael S. Irizarry is currently the Chief Technology Officer, Director & Executive VP at United States Cellular Corp. He is also a Director at NGMN Ltd. In addition, he holds the position of Senior Member at The Institute of Electrical & Electronics Engineers, Inc. and Senior Member at the Association for Computing Machinery, Inc. Previously, Dr. Irizarry worked as the Executive Director-Network at Bell Atlantic Mobile from 1996 to 2000. He then served as the Vice President-Network Engineering at Verizon Wireless, Inc. from 2000 to 2002. In terms of education, Dr. Irizarry holds a doctorate degree from Colorado Technical University, Inc. He also has a graduate degree and an MBA from The International School of Management. Additionally, he holds a doctorate degree from Capella University LLC and an undergraduate degree from Ohio Technical College, Inc. |
| Deirdre C. Drake |
Deirdre C. Drake is currently the Director at United States Cellular Corp., Director at Chicago Public Library Foundation, Director at American Red Cross of Greater Chicago, Independent Director at TopBuild Corp., and a Member of the National Black MBA Association, Inc. Previously, she held the position of Chief Human Resources Officer & Managing Director at Bank of Montreal from 2012 to 2014, Senior Vice President-Human Resources at Aramark Services, Inc. from 1995 to 2006, and Senior Vice President-Human Resources at BMO Bank NA from 2006 to 2012. She also worked as a Principal at Kraft General Foods Corp. and MCI Telecommunications Corp. Ms. Drake completed her undergraduate degree at Central Michigan University and holds an MBA from St. Joseph University. |
| Douglas W. Chambers |
Douglas W. Chambers is currently the Chief Financial Officer, Treasurer, Director & EVP at United States Cellular Corp. He is also the Director at American Red Cross South Central Wisconsin Chapter and the Treasurer & Director at Farmers Cellular Telephone Co., Inc. Previously, he worked as the Director-Accounting & Financial Reporting at Midway Games, Inc. from 2004 to 2007. From 2007 to 2019, he served as the CFO, CAO & Senior Vice President at Telephone & Data Systems, Inc. He was also the Chief Accounting Officer & Senior VP-Finance at TDS Telecommunications LLC from 2018 to 2019. Prior to that, he worked as a Senior Manager at PricewaterhouseCoopers LLP from 1991 to 2004. Mr. Chambers completed his undergraduate degree at the University of Wisconsin and holds an MBA from the Kellogg School of Management. |
| Robert Jakubek |
Robert Jakubek is currently the Director at Warriors 4 Wireless, Inc. He also holds the position of Senior Vice President-Information Technology at United States Cellular Corp. Additionally, he is a Senior Member at both The Institute of Electrical & Electronics Engineers, Inc. and the Association for Computing Machinery, Inc. Dr. Jakubek has a doctorate degree from Colorado Technical University, Inc. He also holds an undergraduate degree from Southern Illinois University and an MBA from the University of Colorado Colorado Springs. |
| Anita J. Kroll |
Anita J. Kroll is currently the Chief Accounting Officer, Controller & VP at Telephone & Data Systems, Inc. and the Chief Accounting Officer at United States Cellular Corp. Previously, she held the position of Vice President-Finance at Springs Window Fashions LLC and Senior Vice President-Accounting at Clear Channel Outdoor, Inc. Ms. Kroll has an undergraduate degree from the University of Washington and an MBA from the University of Wisconsin. |
| Eric Jagher |
Eric Jagher is currently working as the Chief Marketing Officer & Senior Vice President at United States Cellular Corp. He started this position in 2022. Prior to his current role, Eric completed his undergraduate degree at the University of Washington. He also holds an MBA from the Kellogg School of Management. |
| Kimberly Green-Kerr |
Kimberly Green-Kerr is currently the Director at Kc Tech Council, Director at Utility Broadband Alliance, Senior VP-Enterprise Sales & Operations at United States Cellular Corp., and Senior Vice President-Sales & Operations at USCC Services LLC. Previously, she worked as the Director at American Heart Association Kansas Affiliate, Inc. from 2018 to 2019, Director at Matrix Human Services, and Regional Vice President-Sales & Distribution at Sprint Corp. She completed her undergraduate degree at the University of Southern Mississippi. |
| Mike Dienhart |
Mike Dienhart is currently working as the Vice President-Engineering & Network Operation at United States Cellular Corp. He previously worked as the Head-Network Operations Center at Sprint PCS from 2000 to 2003. Mr. Dienhart completed his undergraduate degree at the University of Phoenix and holds an MBA from Kellogg School of Management. |
| Kevin R. Lowell |
Kevin R. Lowell is currently the Chief People Officer, EVP & Head-Communications at United States Cellular Corp. He is also a Member at ChicagoCIO. Previously, he worked as the Director-Network Field Operations at Sprint PCS. Dr. Lowell completed his undergraduate degree at the University of California, Los Angeles and holds graduate and doctorate degrees from Fielding Graduate University. |
| LeRoy T. Carlson |
LeRoy T. Carlson is the founder of Telephone & Data Systems, Inc. (founded in 1968) and United States Cellular Corp. (founded in 1983). He holds the title of President, Chief Executive Officer & Director at Telephone & Data Systems, Inc. and Chairman at United States Cellular Corp. Mr. Carlson's current job(s) include being the Chairman of TDS Telecommunications LLC since 1990. He is also a Member of The Harvard Club of Chicago and Harvard Business School Club of Chicago, Inc.Mr. Carlson's former job(s) include being a Director at American Paging, Inc. and Aerial Communications, Inc. He also worked as an Auditor at Arthur Andersen LLP and as a Manager-Financial Analysis & Planning at Classic Medallics, Inc.Mr. Carlson's education history includes an MBA from Harvard Business School and an undergraduate degree from Harvard College. |
| Laurent C. Therivel |
Laurent C. Therivel currently works at United States Cellular Corp., as President, Chief Executive Officer & Director from 2020, USCC Services LLC, as President & Chief Executive Officer, CTIA-The Wireless Association, as Director, The Executives Club of Chicago, as Member, and The Economic Club of Chicago, as Member. Mr. Therivel also formerly worked at AT&T Mexico, Inc., as Chief Executive Officer, Telephone & Data Systems, Inc., as Non-Independent Director from 2020 to 2023, Game Show Network LLC, as Director, Innova S de RL de CV, as Director, Prison Entrepreneurship Program, as Chief Operating Officer & Director, AT&T, Inc., as Senior Vice President-Small Business Solutions from 2008 to 2020, United States Marine Corps, as Communications Officer from 1997 to 2001, and Ipcelerate, Inc., as Chief Operating Officer from 2006 to 2008. Mr. Therivel received his undergraduate degree from Texas A&M University and Masters Business Admin degree from Harvard Business School. |
| Xavier D. Williams |
Xavier D. Williams is currently the Chief Executive Officer at Network Wireless Solutions LLC and an Independent Director at United States Cellular Corp. He is also a Director at Make-A-Wish Foundation of America and an Independent Director at Navigation Capital Acquisition VI Corp. Previously, he served as Vice Chairman at American Virtual Cloud Technologies, Inc. and as President-Public Sector & FirstNet at AT&T, Inc. He holds an undergraduate degree from Edinboro University of Pennsylvania and an MBA from Joseph M. Katz Graduate School of Business. |
| Cecelia D. Stewart |
Cecelia D. Stewart is an Independent Director at First Horizon Corp. and United States Cellular Corp. She previously worked as CEO & President-Retail & Private Banking Group at Morgan Stanley Private Bank NA, Chairman at The Consumer Bankers Association, Director at First Horizon Bank, EVP, Head-Retail & Small Business Banking at Wachovia Corp., President-US Consumer & Commercial Banking at Citigroup, Inc., and Executive VP, Head-Retail & Small Business at Wells Fargo Bank NA. She is also a Member-Foundation Board at Winthrop University. Stewart holds an undergraduate degree and an MBA from Winthrop University. |
| Esteban Cristian Iriarte |
Esteban Cristian Iriarte is an Independent Director at United States Cellular Corp. and a Director at UNE EPM Telecomunicaciones SA. He is also an Independent Director at SURA Asset Management SA. Previously, he served as the Chief Executive Officer at AmNet, Inc. from 2009 to 2011. He was also the Vice Chairman at Asociación Nacional de Empresas de Servicios Públicos and an Independent Director at Charter Communications Corp. Additionally, he served as a Director at Corporación Ruta N Medellin, Asomovil, and Tepal Organizacion. From 2006 to 2009, he worked as an Operations Manager at Cablevision, Inc. He also held positions as the Head-Regional Home & B2B Divisions at Colombia Móvil SA ESP and as the General Manager at Tigo Colombia. Currently, Mr. Iriarte is the Chief Operating Officer-Latin America & EVP at Millicom International Cellular SA. He completed his undergraduate degree at Pontificia Universidad Católica Argentina and holds an MBA from Universidad Austral. |
| Gregory P. Josefowicz |
Gregory P. Josefowicz currently works at KeHE Distributors LLC, as Chairman from 2007, Empire Co. Ltd., as Independent Director from 2016, United States Cellular Corp., as Independent Director from 2009, and Sobeys, Inc., as Independent Director from 2016. Mr. Josefowicz also formerly worked at American Stores Co. LLC, as Chief Executive Officer-Jewel Osco Division from 1974 to 1999, Borders Group, Inc., as Chairman, President & Chief Executive Officer from 1999 to 2006, PetSmart LLC, as Non-Executive Chairman from 2013 to 2015, True Value Co., as Vice Chairman from 2010 to 2018, Telephone & Data Systems, Inc., as Director from 2007 to 2009, Winn-Dixie Stores, Inc., as Lead Director from 2010 to 2012, Ryerson, Inc., as Director from 1999 to 2006, SpartanNash Co., as Director from 2001 to 2005, TOPS Markets LLC, as Director from 2008 to 2013, Chicago Shakespeare Theater, as Director, Tops Holding LLC, as Director from 2008 to 2013, Roundy’s, Inc., as Lead Director from 2012 to 2015, Albertson's, Inc., as President-Midwest, and Jewel-Osco Co., as President from 1997 to 1999. Mr. Josefowicz received his undergraduate degree in 1974 from Michigan State University and Masters Business Admin degree from Kellogg School of Management. |
| Harry J. Harczak |
Harry J. Harczak is currently an Independent Director at United States Cellular Corp., a Director at DePaul University, and a Managing Director at Sawdust Capital LLC. He is also a Director at Jail Education Solutions, Inc. and a Member-Trustees Board at Chicago Theatre Group, Inc. In the past, he served as an Independent Director at Tech Data Corp. and as the Chief Financial Officer & Executive VP-Sales at CDW Corp. He was also an Audit Partner at PricewaterhouseCoopers LLP. He holds an undergraduate degree from DePaul University and an MBA from The University of Chicago. |
