#18 mPowa

Mastermind: Don Wagner

What they do: Bringing mobile credit card devices to enterprises.

mPowa is an app developer exclusively for Android, iPhone, Blackberry and Windows phone. They are also considered to be the strongest rival against Square as they built apps to purchase goodies using credit card pin number or chip.

Fact: When mPowa launched themselves, Square was so disturbed that went for legal action for a look alike photo in mPowas’s website.

#17 Blue Jeans

Mastermind: Krish Ramakrishnan

What they do: Makes all video conferencing systems to talk to each other

Blue Jeans uses cloud technology as their platform as it helps enterprises to combine all their video conferencing services, regardless of the provider.

Fact: According to Blue Jeans, their first 10 employees had no experience at all in video conferencing service.

#16 Braintree

Mastermind: Bryan Johnson

What they do: Helps customers in payment with online products

Braintree is one of the hottest startups who develops and provides software that helps customers to process their purchases by using credit cards and other online methods.

Fact: The Company is named after John Adams, Braintree, Massachusetts.