Our founders, executives, and advisors include successful entrepreneurs, NASA scientists, and individuals with substantial experience in healthcare, technology, and venture capital.

Board of Directors

  • Mark McKee, President of Capital Alternatives
  • Ross Jaffe, M.D., Managing Director of Versant Ventures
  • William W. Potts, Former President of Precor USA
  • Amir Belson, M.D., CTO and Founder of NeoGuide Systems
  • David Grenewetzki, Independent Consultant for AlterG
  • Edward Unkart, Independent Consultant for AlterG


Charles Remsberg, Chief Executive Officer (CEO)

Mr. Remsberg is an executive with 20 years of experience building global sales for leading high-technology rehab companies. Charles joined AlterG as Vice President of International Sales after serving for 4 years as CEO of Tibion, the creator of the Bionic Leg where he led the transition from technical idea through market engagement and product commercialization.   Tibion pioneered the adoption of the Bionic Leg, a wearable, battery operated robotic device for mobility impairments, within private clinics, rehabilitation hospitals, home health providers, and skilled nursing facilities.

Before that he lead the U.S. sales and marketing arm of the privately held Swiss company Hocoma AG, best known for its clinic-based Lokomat robotic gait orthosis that has helped thousands of American patients with spinal cord, stroke, traumatic brain injury and cerebral palsy to recover their ability to walk. Prior to that position, Mr. Remsberg served as Head of Worldwide Sales for Hocoma AG in Switzerland, and for more than 10 years, an executive of Biodex Medical Systems in New York.  At Biodex, he rose from Product Development Manager to Head of Worldwide Sales for this leading pioneer of balance, gait, and joint rehabilitation systems.

Kevin Davidge, Chief Financial Officer (CFO)

Mr. Davidge has 20 years of executive financial leadership for a wide variety of healthcare/life science companies ranging from biotechnology, medical imaging and diagnostics segments. Most recently, Mr. Davidge was CFO for HX Diagnostics, a start-up company developing point-of-care diagnostics tests for infectious diseases. HX was merged into NexusDx In 2009. Prior to that, Mr. Davidge served as CFO at two medical imaging companies – R2 Technology and ZONARE Medical Systems. Revenues in both companies ramped from zero to $30-$60 million within four years of product launch. Earlier in his career, Mr. Davidge was CFO at Athena Neurosciences, a publicly traded biopharmaceutical company where revenues grew from zero to $70 million in four years. Athena was sold to Elan in 1996 for $600 million.

Mr. Davidge has extensive fund raising, M&A and product licensing experience, having raised over $200 million in equity, debt and off balance sheet financings. Mr. Davidge spent the first nine years of his career in the international public accounting firm of KPMG. Mr. Davidge graduated from UC Berkeley Phi Beta Kappa, summa cum laude with a B.S. in Business Administration.

Chris Forst, Vice President of Sales

Since joining AlterG in 2011, Mr. Forst has helped shape the company’s sales operations strategies, market engagement plans, and sales training programs. He began his AlterG career in the field, securing some of the company’s longest-standing customer relationships and improving the sales team’s execution. During his tenure with AlterG, Chris has formalized sales strategies that maximize interdepartmental resources and deliver the company’s core values to the marketplace.

Prior to AlterG, Mr. Forst worked in the consumer packaged goods industry managing wholesalers for the Boston Beer Company. The Boston Beer Company spearheaded the craft beer trend in the United States with their Samuel Adams product line by challenging the industry’s mega breweries and remains one of the largest independently owned breweries in the country.

Mr. Forst holds a Bachelor’s in Marketing and MBA with concentrations in finance and entrepreneurship.

Michael McGirr, Vice President of Technology

Mr. McGirr has over 20 years of experience in information technology and software development with various tech companies in both the Midwest and West Coast. Prior to AlterG, Mr. McGirr worked in technical and business sales for Apple, focusing on startups in the Bay Area. He then started his own IT consulting firm, assisting small business customers to advance their internal IT systems to meet growing needs.

Mr. McGirr joined the AlterG team in 2008, first as a consultant, then as a full time employee, and finally as the Director of Information Technology in 2014. Now also a member of the new product development team, Mr. McGirr has played a key role in bringing the Pro200 Plus and M320 Stride Smart to market.

He holds a Bachelor’s degree in Electrical Engineering from Ohio University, where he specialized in Computer Engineering.

Mike Phillips, Vice President of Operations

Mr. Phillips brings 30 years of experience in industry to AlterG. He began his career at start-up Convergent Technologies, advancing through the organization to hold positions of Director of Manufacturing Engineering and Director of Operations.  From Convergent, Mr. Phillips moved to SuperMac where he helped them strategically outsource their operations overseas.   While working at Gregory Associates selling outsourcing design and manufacturing of capital equipment, Mr. Phillips was recruited to join ADAC Labs, his first medical company, as Director of Manufacturing Engineering.  ADAC was eventually bought out by Philips Medical Systems, where Mr. Phillips stayed for the next ten years.  During his tenure at Philips, he led a variety of teams in Engineering, Operations and Service, including teams on global outsourcing, supply-chain management, and integrating international service support organizations.

In March 2009, Mr. Phillips joined AlterG as Vice President of Operations.  He holds BS and MS degrees in Electrical Engineering, an MBA and is an accomplished Six Sigma Black Belt.  Currently Mr. Phillips is also a trustee for St. Louise Regional Hospital in Gilroy, CA.

Allison Sojka, Vice President of Marketing

Ms. Sojka’s marketing career is characterized by her leadership at game-changing companies which have re-set the standard in their categories in the medical device field, helping build some of the most notable brands in the rehabilitation industry. Her entre to healthcare marketing began with Game Ready®, an orthopedic and sports medicine recovery solution where she helped grow the company from a niche capital equipment product sold to professional sports teams to a post-op orthopedic device for the mass market. Ms. Sojka then joined rehabilitative robotics company Ekso Bionics®, where was elevated to serve as Vice President of Marketing. Here she led the company’s marketing efforts through their initial public offering and during a key transition from a developer of a novel assistive device to help people with spinal cord injuries to walk, to a rehabilitative solution to help those with broader neurological conditions learn to walk again on their own. Prior to joining AlterG, Allison was Vice President of Marketing with LIM Innovations, developers of a disruptive new prosthetic technology representing a paradigm shift in possibilities for amputees.

Ms. Sojka received her Bachelor of Arts from the University of Redlands earning High Honors.