CardFlight, a mobile point-of-sale technology provider, Thursday announced it has raised $4.2 million in Series A funding.

The round was co-led by an investor group assembled by Dan Henry and MATH Venture Partners, according to a press rlease. CardFlight said the funding will enable it to continue to grow its engineering team and accelerate the rollout of their EMV-approved mobile payment acceptance products in the U.S.

Henry served as CEO for prepaid card provider NetSpend from 2008 to 2014. "The team at CardFlight has a deep understanding of the opportunities and challenges in deploying payment solutions on mobile devices," Henry said in a statement.  "I'm excited to help them continue to expand their business."

MATH Venture Partners is a Chicago-based early-to-growth-stage fund managed by a seasoned team of hands-on investors and operators.  

"Mobile point of sale is one of the fastest growing segments of the payments industry," Troy Henikoff, Managing Director at MATH, said in a statement. "CardFlight has already built an impressive customer base and we're excited to help their team grow from here."