Mainstreet Computers Inc. has been acquired by Convenient Payments Holdings LLC, a portfolio company of Beekman Investment Partners III LP. Mainstreet provides business software to the glass and glazing industry.

Through its flagship product, Glas-Avenue, Mainstreet offers software that enables its customers to quote, accept, manage work orders, schedule technician jobs, manage inventory, accept payments, communicate with insurance carriers and complete many other critical business functions, according to the company.

David Carnahan, the founder of Mainstreet will be an investor and strategic advisor to Convenient Payments going forward, according to both companies.

“We are impressed with the Mainstreet team and are thrilled to welcome them to the Convenient Payments family. Our vision for Convenient Payments has always been to partner with software companies like Mainstreet, connect them to our Intellipay payment processing platform, and provide additional resources both to accelerate growth and support critical back-office functions, including accounting and finance, marketing and product development. Today, with support from Beekman, we took a big step towards achieving that vision,” says Convenient Payments CEO Casey Leloux.

“By pooling our resources, we strongly believe that both companies will be better positioned to deliver value-add solutions to our customers on a more compressed timeframe,” says Brad Rhoades, Mainstreet CEO.

Convenient Payments is the eighth and final platform investment for Beekman Investment Partners III LP and the second payments technology platform for the Beekman Group, according to the company.