The Management Team of DEM Group represents the most experienced team of professionals in the industry. With a combined 106 years in the PEO and Employee Administration fields, DEM Group is positioned to bring strong leadership, innovative thinking, and outstanding customer service to your company.
With numerous awards and recognition by various Employer Organizations, HR Associations, and Business Groups, our Management Team has the knowledge and experience to provide the most comprehensive programs available. We invite you to visit and meet with our Team of Professionals.
President and Founder, DEM Group LLC
“We offer business owners the opportunity to do what they do best – focus on their core business.”
Mike Decker applies the same qualities he gained as a football player at Michigan State University to his job today – discipline, hard work and a strong work ethic. As a member of the 1975-79 Michigan State University Spartans football team, including the 1978 Big Ten Championship team, Mike was a three-time letter winner.
Today, Mike is a proven leader with an impressive track record of founding and managing successful, profitable businesses.
As the President and founder of DEM Group LLC, he oversees the direction and growth of the company, establishes new markets, and is actively involved in sales and client relations.
Before starting DEM Group, he owned and managed Defined Employee Management, which he founded in 1996. Defined Employee Management grew to a leadership position in the Professional Employer Organization (PEO) industry, servicing more than 200 client companies and 5,000 worksite employees in 17 states.
Defined Employee Management was listed by Crain’s Detroit Business as one of the Midwest’s largest PEOs from 2001-2004 and was recognized in 2002 as a “Future 50 of Greater Detroit” by the Detroit Regional Chamber’s Detroiter magazine.
He eventually merged Defined Employee Management with a financial services company to create a national PEO in four regions in 28 states.
Early in his career, he also founded Decco Industries and served as President and CEO of the $80-million company, spearheading its growth in multiple states. He was instrumental in negotiating the eventual sale of the company in 1990.
He earned a Bachelor of Arts degree from Michigan State University. Currently, he serves on the Board of Directors for the Michigan State University Varsity “S” Alumni Association and is active in the Michigan State University Football Players Association.
Mike is a graduate of De LaSalle Collegiate High School and remains active in its fundraising events.
He believes in giving back to the community and has been involved in philanthropic efforts including the Susan G. Komen® Race for the Cure, University of Michigan Cancer Research, Mott Children’s Hospital, The Lupus Foundation of Michigan, American Cancer Society and the Muscular Dystrophy Association.
He has coached youth sports including grade school and high school baseball and football, and is actively involved in outdoor sports with a special interest in golf and hunting.
Senior Vice President, DEM Group LLC
“We are a resource for our clients and consistently challenge ourselves to offer solutions to meet their growing needs.”
Debbie Decker Thomas knows first-hand what it means for business owners to hit the ground running. She has a special appreciation for them, since she was one herself.
Early in her career, she was a Little Caesars’ franchisee in Newport News, VA, where she was responsible for four stores, managing all aspects including bank financing, store construction, operations and staff supervision. Prior to becoming a franchisee, she was the General Manager of a 20-store Little Caesars franchise in VA.
She worked for Meijer, Inc. right out of college, where she progressed through the company and became a Store Director.
She manages a team of twelve employees and supervises DEM Group’s national operations, including payroll, workers’ compensation management, benefit, compliance and client relations.
She has nearly 18+ years’ experience in the (PEO) industry. She has served as a Senior Vice President of Operations, with responsibility for all nationwide operations associated with payroll/PEO administration, including supervising personnel at all the company’s locations throughout the United States.
She also has served as a Vice President with responsibility for all PEO/ASO operations, including customer service, and the human resource functions of compliance with all state and federal agencies, payroll processing, year-end filings, and W-2 issuance
She also was a Director of Operations, with responsibility for all human resources functions, including: payroll, taxes, 401(k), health benefits, and compliance of labor and employment regulations for more than 2,500 leased employees. She handled quarterly filings and year-end processing, including all W2s, 401(k) filings and audits. She also was an advisor to officers and senior management within the company.
Debbie has been recognized for her professional achievements, including an award from the National Association of Women Business Owners.
She is a member of the Human Resources Association of Greater Detroit, Greater Ann Arbor Society for HR Management and the National Association for Female Executives.
She earned a Bachelor of Arts degree in business and personnel / human resources management from Michigan State University.
When she’s not working, she enjoys spending time traveling with her husband and two children. Her hobbies include golf, exercise and reading. She is an active member of St. Lawrence Church in Utica.
One of her greatest pleasures is volunteering in the community with Habitat for Humanity of Macomb County and the Susan G. Komen® Race for the Cure, where she participated in the three- day walk. Debbie also participates in walks for pancreatic cancer presented by the Pancreatic Cancer Action Network.
Vice President of Sales, DEM Group LLC
“Set goals everyday, lead by example and inspire others.”
Dan Russell’s philosophy on life translates seamlessly to his career. He sees the potential in everyone he meets and knows that each person can make a positive impact.
He believes in the importance of offering new ideas and exceeding client expectations.
He is responsible for sales, marketing, recruiting and management of the sales team. He also secures new-business opportunities for the organization, and leads the transition of new clients into the company. He helps to establish affinity business relationships with other business partners.
Before joining DEM Group, he was an Assistant Vice President for Wachovia Bank in the mortgage lending division and an Assistant vice president/branch manager for Wells Fargo, where he was responsible for day-to-day operations and supervised 25 employees; he was also an Assistant Vice President with National City Mortgage, where he handled residential mortgage lending.
Throughout his career, he has received numerous sales awards. He attended Michigan State University and majored in organizational communications. Dan also played football and ran track while he was a student at Michigan State University.
Currently, he is Head Coach of the Cranbrook Kingswood High School Varsity Track Team and is a Football Coach for Cranbrook Kingswood’s High School Varsity Football Team. He also coaches the North Oakland Wolfpack AAU girl’s basketball team.
Dan sits on the Board for the International Visitors Council of Detroit where they host hundreds of visitors a year from around the globe to the Metropolitan Detroit Area. He is also a graduate of the ministry training school at Mt. Zion in Clarkston.
When Dan isn’t working and coaching he enjoys spending time with his wife and six children. They enjoy all types of sports activities and love to travel.
National Payroll Manager, DEM Group LLC
“We have high expectations for ourselves and will leave no stone unturned.”
Tom Loriaux traveled the globe while serving in the Navy for four years. He expanded his scope of experience while serving as a dispersing clerk with responsibility for payroll and travel allocations. He also received numerous awards and accommodations while serving in the U.S. Navy. He is a thought leader who challenges others to always go the extra mile.
At DEM Group LLC, he manages a staff of four and coordinates payroll management, including bank uploads; timely and accurate payroll processing; new hire compliance; garnishments and levies; and multi-state payroll compliance and tax administration. He also is responsible for DarwiNet, the web-based interface payroll system and trains clients on use of the system.
He has 20 years of payroll experience and has served as director of operations, where he supervised a staff of 12 directly and 30 employees indirectly and managed out-of- state offices for the company; payroll manager, with a staff of five employees; and, payroll specialist, with responsibility for entering payroll information and ensuring accuracy of payroll multi-state quarterly reporting.
In his free time, he is active in the community and serves as a volunteer with the Waterford Youth Sports Programs. He also enjoys outdoor sporting activities with his family including softball, volleyball and golf.
National Compliance Manager, DEM Group LLC
“The work we do impacts peoples lives and we take that responsibility very seriously.”
Kelley Reedy is a team player with a competitive edge. Bowling and baseball are favorite pastimes. She understands the importance of working on a team, sharing ideas and looking for new ways to approach projects.
At DEM Group, she is responsible for managing and processing unemployment claims, and unemployment hearings. She handles workers’ compensation claims and coordinates the return to work program for injured employees. She also facilitates all state/federal quarterly tax filings for clients, state registrations and PEO licensing requirements.
During her 12 years in the PEO industry, she has served as Director of Tax Compliance with responsibility for nationwide local and state withholding and unemployment tax registrations for multiple business entities, as well as processing nationwide tax payments for more than 500 clients.
In addition, she was a National Licensing Director responsible for PEO licensing and regulation in more than 30 states; and a Workers’ Compensation Manager, responsible for communicating with employees and healthcare providers.
She attended Macomb Community College.
One of her favorite activities is volunteering with her son at the St. Clair Shores Public Library. She’s also active at Our Lady of Hope Parish.
National Benefits Manager, DEM Group LLC
“We think about the bigger picture in all that we do for our clients and strive to be a catalyst for them.”
Rhonda Kain has held important jobs over the years. However, the one she cherishes most is being a Mom. She is a role model for her son and everyone she meets. She has mastered the art of time management and recognizes the importance of being proactive – skills that transfer well to her job.
She facilitates COBRA, Family & Medical Leave Act (FMLA) requirements, claims, benefit plans, enrollments and terminations, as well as accounts payable, payroll and 401(k) administration for DEM.
Rhonda has 18 years of experience in the PEO industry serving as a National Benefits Manager, an Office Manager and a Payroll Specialist.
Her career highlights are vast and include successfully opening two additional offices for a staffing company, and implementing a national flexible spending program for more than 8,000 employees.
She attended Oakland Community College.
Animals hold a special place in her heart. She volunteers for the Michigan Humane Society and is a member of the American Society for the Prevention of Cruelty to Animals (ASPCA).
She enjoys, camping, reading and bowling.
Payroll/Tax/Compliance Coordinator, DEM Group LLC
“We have a top-notch team and strive for quality in all that we do.”
Tammy Spiekhout has an appreciation for the classics – Steinbeck, Fitzgerald and Salinger. She has a passion for reading that she has shared with her children and grandchildren. Her devotion to reading requires dedication and commitment – qualities that serve her well at DEM Group.
Her responsibilities include processing weekly payroll for more than 10,000 employees. She also handles nationwide processing of state, local and federal taxes, including reconciling quarterly 941 returns, state unemployment returns and worker’s compensation certificates.
Her 18+ years’ experience in the PEO industry has flown by, a testament to the incredible staff and clients she has worked with over the years. In her career, she has served as an Office Manager, with responsibility for accounts receivables/payables, administration of unemployment claims and hearings, and worker compensation injuries. She handled W-2 processing and payroll for more than 2,000 employees and supervised a staff of five employees.
She also was an Insurance Coordinator, responsible for maintaining AFLAC policies for more than 20,000 worksite employees, as well as monthly audits.
Tammy believes in the importance of a good education. She earned an associate’s degree from St. Clair Community College.
She enjoys going on weekend excursions with her husband; finding new recipes and trying them out on her family; above all, she relishes the time spent with her grandchildren.