BRENDAN McCorkle, 33, of North Philadelphia, is CEO and co-founder of CloudMine, a Midtown Village startup with a software platform that mobile-app developers use to build back-end solutions. CloudMine lets developers focus on the front end of apps, features that users touch.

Q: Where did you get the startup money?

A: We got $20,000 from Dreamit Ventures to launch, which was seed money. We've raised $2 million to date from mostly local investors.

Q: What's the biz do?

A: We have a platform that provides infrastructure and a suite of development products. People build apps on top of our platform, and we provide common pieces that apps share. Users don't have to build 40 to 60 percent of their app, because we provide the plumbing underneath.

Q: The value proposition?

A: For most users, it's building apps faster and getting products to market in about half the time it would otherwise take.

Q: The biz model?

A: People buy a license to use the platform. As they use it more heavily, there's an additional charge to release more apps. An app developer engages us for $5,000 a month, and then when they launch their second app it goes up to $6,200 a month.

Q: Your customers?

A: We sell to the Fortune 2000 and also companies that support them. Y Prime is a clinical-trials company [in Malvern]. We also work with Digitas Health, and they engage their users with our platform to help them build apps quickly for their clients. We also have a relationship with Amazon Web Services and Rackspace. They bring us customers looking for mobile solutions powered by Rackspace's or Amazon's cloud.

Q: Your competitors? What differentiates you?

A: Three other startups launched when we did. Two were acquired by Facebook and by PayPal. Convey [Computer] and us are the two independents left. What we do that nobody else does is we're willing to work with compliant [personal] data and we have HIPAA-compliant infrastructure. We've done work with Endo Pharmaceuticals where there is a Web form powered by CloudMine that is collecting patient information, separating it and storing it appropriately. We feel it gives us a security halo when we talk to potential clients.

Q: What's been the biggest challenge to growing the biz?

A: I think it's been staying close to the market.

Q: How big a biz is this?

A: We have 15 people, one who will be in Boston shortly, and our CTO runs a satellite office in San Francisco. We expect grow revenue three times next year and quadruple  the number people using the platform.