IMS has a payment processing solution to suit every business.

With an unmatched product range and a depth of knowledge across most industries, we provide value to our clients every day.

Our Company History

Integrity Merchant Solutions was established in 2008 when our founders, Sean McGrail and Larry Glick, saw an opportunity to simplify the process of accepting credit card payments. We have made the business easy to understand from a customer’s perspective, while streamlining the equipment and technology required. With improvements in reporting, and technology, we have made credit card acceptance affordable and understandable for all businesses.

Since our inception, we have continued to evolve with the shifting needs of our customers, our partners and the dynamic changes in the payments landscape.

While new processing technology is impressive, the heart of the organization is our people.  With many years of experience in this business, the true value is the service we provide to our customers. We are available every day to answer questions, provide new solutions and solve problems. Ask our customers!  We’re confident you will be impressed with what they have to say.

Integrity is our name and Integrity is our promise.

Our Leadership Team

Sean McGrail


Sean McGrail

Sean McGrail is President and founder at Integrity Merchant Solutions.  Prior to starting IMS, Sean was a regional sales executive for First National Merchant Solutions and was a consistent top producer.  Sean has been in the processing industry for 14 years.

Sean graduated from Eastern CT State University and then went on to receive an MBA from The University of Hartford.

Larry Glick

Partner & Co-Founder

Larry Glick

Larry Glick is a partner and co-founder of IMS and oversees the company’s sales, marketing and business development functions.
Prior to forming IMS, Larry was president of Bancroft Motors, overseeing daily operations of Chrysler-Jeep and Nissan dealerships in Worcester and Auburn, MA.

Larry also was an organizer of Commonwealth National Bank In Worcester, MA, serving on the board of directors from September 2001 until the bank was sold in December, 2009.
Larry graduated from Tufts University and then went on to receive an MBA degree from Columbia University.

Kathleen McGrail

Partner – Chief Financial Officer

Kathleen McGrail

Kathleen McGrail is a partner and co-founder at IMS and oversees the company’s financial, operating and administrative functions. Prior to forming IMS, Kathleen worked in the private industry as an accountant for various corporations. Kathleen graduated from the University of Connecticut and is the member of the Connecticut Society of CPA’s.

Industries We Serve



Specialized payments software is required based on a high number of business card types being accepted. We can help.



We offer solutions for schools to accept payments for fees, activities, funds, and donations whether online, in-person or over the phone.

Health Care


We have software partners who can integrate to most practice management systems reducing steps and increasing productivity.



When setup properly, non-profits can benefit from very low rates assigned by the card issuing banks. We are experts here.



We work with all of the Parking Control System and Pay Station vendors to seamlessly integrate merchant accounts while adding profit to the bottom line and improving customer service.



Jewelry store associations and independent jewelers nationwide rely on us for their Card Present and Online-processing payment needs.



Integrity Merchant Solutions can help with all pay-at-the-pump needs including EMV chip card solutions.



With extensive industry knowledge and a partner at IMS who spent over 20 years in the retail automotive business, we are able to help dealership management lower the cost of card acceptance and improve reporting capabilities.



We provide retail businesses with flexible, scalable solutions that combine our national pricing power and expertise with a focus on service.



We have a dedicated team focused on the specific needs for appliance stores to include, TV and electronics, kitchen and bath, furniture, flooring and general home goods.



Our merchants have access to the most affordable and reliable payment options, including best in class Level 3 Gateways. We believe in educating businesses on how to best accept commercial and corporate card types.



We work with premier integrated application systems used in today’s restaurants, including Micros, Aloha, and Clover, to create an easy and enjoyable user experience for both management and customers.