Our Team

Chief Officers

Greta Wu

Greta Wu

Chief Human Services Officer

Greta Wu is the Chief Human Services Officer at Peckham and has been with Peckham since 1982. She...

Greta Wu is the Chief Human Services Officer at Peckham and has been with Peckham since 1982. She earned her MA degree in Vocational Rehabilitation Counseling from Michigan State University and her BA in Business Administration from Providence College in Taiwan. Greta currently serves as a board member for Origami Brain Injury Rehabilitation Center, Brain Injury Association of Michigan, Ingham County Department of Human Services and has served on many other boards including the Michigan Rehabilitation Association.
She has been a CARF surveyor since 1996.

Through Greta’s leadership, Peckham has gained a reputation as a leader in rehabilitation programs and services. Many of Peckham’s programs are recognized as model programs and have been replicated throughout the state and the nation. Greta is a champion of multi-cultural rehabilitation concerns, recognizing methods must be sensitive to cultural issues, especially when working holistically with the family. Greta demonstrates through her leadership and hands-on efforts a commitment to self-determination, recognizing the choices of people with disabilities must be respected.

Through the years, Greta has mentored more than 50 Masters Candidate students, guiding them through their practicum and internships. She has been recognized by her peers with the Michigan Association of Rehabilitation Organization Outstanding Achievement Award. Greta is eager to learn and skilled at teaching the fine art of treating all with “profound respect.” Her grace and dignity serve as an inspiration to others and as an exemplary role model for staff.


Harry Pianko

Harry Pianko

Chief Financial Officer


Jo Sinha

Jo Sinha

Chief Operating Officer

Jo Sinha is the Chief Operating Officer of Peckham, Inc., and has been with the company since...

Jo Sinha is the Chief Operating Officer of Peckham, Inc., and has been with the company since 1994 in a number of capacities. She earned a master’s degree in Business Administration (MBA) from Michigan State University.

Sinha was instrumental in getting Peckham’s first call center opportunity off the ground successfully. She assisted in transitioning most of the Battle Creek Federal Center contracts from commercial and federal entities to AbilityOne contracts. This includes the DLA Battle Creek Customer Contact Center, the Battle Creek Facilities contract, the Dept. of Defense E-mall Support contract, the ADP Security contract and a number of smaller administrative contracts.

n her current capacity, Sinha provides resources to each business unit including new business development, pricing support, cost analysis, contract start-up, compliance review and oversight, risk management and operational support. Thoughtful research, innovation and out-of-the box thinking characterizes her approach to problem-solving. She works closely with the finance and grants management teams in executing long and short term sustainable funding strategies. She is a board member of two local non-profits and is the recipient of the Award of Excellence from the Michigan Rehabilitation Conference.


Mitch Tomlinson

Mitch Tomlinson

President & Chief Executive Officer

Mitchell Tomlinson has been with Peckham, Inc., since 1976, and has been the CEO since 1994. He...

Mitchell Tomlinson has been with Peckham, Inc., since 1976, and has been the CEO since 1994. He earned a master’s degree in Rehabilitation Counseling from the University of Wisconsin-Stout.

Tomlinson’s accomplishments include creating new partnerships with Michigan State University, participating in a Harvard Business Review case study of best practices in non-profits, and overseeing a growth of more than 1000% in revenues.

e was awarded the Management Excellence award from the National Council of Work Centers, the Award of Excellence from the Michigan Rehabilitation Conference and named Business Man of the Year by the Southside Business Association.

In 2010, he received the John G. Thodis Michigan Manufacturer of the Year Award, Special Achievement Award for Peckham’s significant contributions to the industry and community; the Socially Responsible Entrepreneur of the Year Award. Peckham has won several honors for excellence including the NISH Performance Excellence, Assistive Technology and Government Award for Services and the Alfred Sloan Award for Excellence in Work Place Flexibility, for the third year running.

Mitch is on the Rehabilitation Counseling Program Advisory Committee at MSU. He serves as board member and past president of the 501 Alliance, and is a member of Capital Area Transportation Authority (CATA) local advisory committee. He serves on the Executive Committee for the Employer Conference of Workplace Diversity for the Lansing Regional Chamber of Commerce.


Scott Derthick

Scott Derthick

Chief People and Culture Officer

Scott Derthick is the Chief People and Culture Officer at Peckham, Inc.  He...

Scott Derthick is the Chief People and Culture Officer at Peckham, Inc.  He earned a Master’s degree in Rehabilitation Counseling from Michigan State University as well as a Master’s of Horticulture and Packaging.

Derthick serves as a board member for the Human Service Association Workers Compensation Fund as well as Origami Brain Injury Rehabilitation Center.
   
His HR philosophy is to become an ambassador or steward of the culture. Guiding staff to keep the mission top of mind, in all they do.  Derthick also provides leadership in the areas of Wellness, Safety, Opportunity for Improvement, Asset Building, Peckham University, and Sustainability efforts at Peckham.  
His diligence and commitment to the Peckham culture has helped keep staff and leadership grounded in the mission as we continue to grow as an organization.  His unique and innovative approach to Human Resources, has served Peckham well and helped recruit a level of staff who are not only have what it takes to succeed, but that something extra, compassion, commitment and a keen focus on the Peckham mission.