Our Team

Kelvin Group Leadership

Harry Gray

Chief Executive Officer

Harry is a multi-sector executive with transformational growth experience spanning start-ups to the Fortune 500, and across the industrial, consumer, retail, food, aerospace, B2B, energy, manufacturing, financial, and technology sectors.

Prior to joining Kelvin Group, he was President of AVT, which is a NASDAQ award-winning manufacturer of engineered industrial products. Harry was also Managing Partner of a Bain & Company spin-off, private equity professional, and mergers and acquisitions professional at Alex Brown & Sons and Wasserstein Perella & Co.

Harry served as a commissioned military officer and was a member of US Navy’s warship construction program embedded at General Dynamics in Bath, Maine. He is a graduate of the US Naval Academy at Annapolis and Columbia University’s Graduate School of Business, where he was a Bibeault Scholar.

Michael Sirois

Executive Chairman

Michael started in the industrial and commercial refrigeration and HVAC industry at Lewis Refrigeration Company in 1988. Prior to transitioning from CEO to Executive Partner of Kelvin Group, he spent 25 years at American Refrigeration Company (ARC), responsible for overseeing the daily operations and growth, which led to ARC becoming the largest industrial refrigeration contractor in New England.

Mike received his education at the University of Massachusetts in Dartmouth, earning a Bachelor of Science degree in mechanical engineering. He also completed the Wentworth Institute of Technology refrigeration and air conditioning program, Kansas State University’s industrial refrigeration program, the IIAR industrial refrigeration program, and the Advanced Leadership Institute at Babson College. Michael is a member of IIAR, RETA, and ASHRA.

Jason Jordan

Chief Commercial Officer

Jason has more than 30 years of experience in Sales, Marketing, and Operations, focused on developing winning customer strategies and building high impact sales teams. As Chief Commercial Officer, he is accountable for coordinating Kelvin’s customer-facing resources and driving operational excellence across Kelvin’s combined go-to-market effort.

Prior to joining Kelvin Group, Jason was Chief Revenue Officer for Alba Wheels Up, a leader in global supply chain logistics. Jason has also held senior sales and marketing leadership positions in the commercial construction, information technology, and professional service industries. He received an economics degree with honors from Duke University and an MBA from the University of Virginia.

Peter DiMartino

Chief Financial Officer
Peter has more than 20 years of financial leadership and operations experience within the construction industry. He spent 17 years with Sullivan & McLaughlin Companies, one of New England’s premier union electrical contractors, before transitioning to a CFO role with RESCON, a private equity-backed national restoration business. Peter then joined the Kelvin family early in 2020. He earned a bachelor’s degree in accounting from Stonehill College and a Master of Business Administration from the University of Massachusetts at Boston. He is an active member of the CFMA.

Mary Fairbairn

Director of Human Resources

Mary has more than 20 years of experience in all aspects of human resources in various industries including manufacturing and finance. Prior to joining Kelvin Group in 2021, she spent 10 years at ATN International Inc, an international holding company headquartered in Beverly MA that focused on telecommunications and renewable energy. As a human resources professional, Mary’s proudest career accomplishments include having built multiple customer-centric teams and corporate cultures focused on delivering the best and highest level of customer service.

Mary specializes in policy development, employee relations, leadership training, performance management, and regulatory compliance. She began her human resources career at Tecogen, an HVAC manufacturing company in Waltham, MA. Mary earned a bachelor’s degree in management at Regis College and is an active member of SHRM.

Lori Gately

Director of Marketing

Lori is an award-winning Boston area digital marketer and content strategist with over 15 years of experience in the marketing industry. Switching gears during the pandemic, Lori comes to Kelvin Group by way of the hospitality industry, where she most recently led the marketing and media relations initiatives at Boston’s historic Omni Parker House hotel.

After receiving her bachelor’s degree in Sports, Entertainment and Event Management from JWU in Providence, RI, Lori began her career in marketing at the Central Florida Sports Commission in Orlando, FL. She then spearheaded the marketing initiatives at two Walt Disney World® hotels before returning home to Boston to manage the mar. In addition to having her efforts recognized in industry publications like Travel + Leisure magazine, Lori has also been awarded Manager of the Year at the Omni Parker House and nominated for Outstanding Manager of the Year by the Massachusetts Lodging Association (MLA).

Simon Clarke

Corporate Engineer & Head of Knowledge Center

Simon has over 35 years experience in the design, sales, installation, troubleshooting and commissioning of industrial refrigeration plants around the world, using all major compressor manufacturers including Grasso, Sabroe, Mycom, Stal, Frick, Howden and others. He has provided technical solutions and support for industries including Food & Beverage, Cold Storage, Process, Recreational, Leisure, Petrochemical and Pharmaceutical.

He has thorough experience in pumped circulation, gravity fed, direct expansion, LPR, LVS system design, sales, contracting and commissioning. He specializes in industrial NH3 refrigeration/heat pump and CO2 solutions and ammonia projects up to 240,000 and 40 mill USD. Simon has designed, installed, and commissioned projects in over 35 countries divided amongst South America, North America, Middle East, Africa, and Europe.

Simon received his education at Hugh Baird College in Liverpool, England where he achieved a BTEC ONC Electrical Engineering Degree. He has completed courses in GEA Engineering and Project Management, Sabroe Engineering and Project Management, and Construction Design and Management. He is also member of RETA and IIAR.

Kendra Scalforatto

Environmental Health and Safety Director

Kendra has nearly 20 years of experience working for global conglomerates such as Nestle, Keurig Dr Pepper, Energizer Battery, and Anheuser-Busch. In her most recent role with Nestle, she was responsible for 16 facilities and led a team effort that achieved a 75% year-over-year reduction in workplace injuries. She also built a standardized EH&S system from the ground up.

Kendra has a B.S. in Occupational Safety and Health, a B.S. in Business Management, a Post-Baccalaureate Premedical degree, and holds her M.B.A. with a concentration in Leadership Psychology.

Company Presidents

Bill Fleming

President - ARC Mechanical

Bill has more than 30 years of leadership and operations experience within the mechanical services industry. He worked his way through the ranks of Local 537, first as an apprentice, then as a journeyman at several Boston-area companies. He spent 13 years with JC Cannistraro, one of New England’s premier mechanical contractors, with his most recent role as Senior VP of Service and SPG before transitioning to his current role as President of ARC.

Bill holds a degree in construction management/supervision, is a licensed master pipefitter and licensed refrigeration contractor in the Commonwealth of Massachusetts. He is the former president of the New England Mechanical Service Contractors Association where he currently sits on the board, and he also serves on the Apprenticeship Committee of Local 537.

Scott Sweet

President - HCG Associates

Scott founded HCG Associates nearly 20 years ago and has developed the firm into a recognized leader in the regulatory compliance industry. His role at HCG followed an impressive career in public safety and hazardous material response. He also served as the Deputy Director of Hazardous Materials Response for the Commonwealth of Massachusetts. His broad experience across nearly every major industry and type of workplace environment lends practicality and credibility to Scott’s regulatory consulting approach.

Whether he is interacting with regulatory authorities, assisting clients with high-level business assessments, leading investigations, or liaising with client counsel, EPA or OSHA, Scott brings both his regulatory acumen and leadership skills to the table, resulting in consistent client success. His credentials as a Certified Hazardous Materials Manager (CHMM) in addition to numerous PSM/RMP and compliance-related certifications frequently earn him distinction as not just the leading subject matter expert in the room, but the one clients return to year after year after recognizing the value he brings to their businesses.

Bil Sauer

President - RD&S
Bil has more than 33 years of sales and leadership experience within the refrigeration services industry, specializing in the food and beverage sector. He joined RD&S in 2006 and was responsible for driving annual sales and revenue growth before transitioning into his current role. He is the founder of Modern Freezing Systems and organized the Northeastern Pennsylvania Chapter (NEPA) for the Refrigerating Engineers and Technicians Association (RETA). Bil studied Refrigeration Theory at the CHI Institute of Philadelphia and sits on the International Institute of Ammonia Refrigeration (IIAR) Piping Committee.