Hall, which provides a cross-platform, cross-device messaging service to businesses, announced today that it has closed a series A funding round of $5.5 million led by new investors including Felicis Ventures, Signia Venture Partners and Angel investor Eric Hahn, and joined by existing investor Tim Connors of PivotNorth Capital. Founded in 2010 by Brett Hellman and Ron Adams and incubated at AngelPad, Hall helps customers significantly increase their productivity gains and revenues through faster and more efficient SMS-like messaging services that run across all mobile platforms.

Hall will use the capital to scale the company's design and engineering team to meet growing demand from Fortune 500 and enterprise customers such as Capital One and Farmers Insurance. While the current platform has already helped thousands of customers derive greater topline value, the company will launch its most expansive mobile application and desktop client service later this year.

'As both users and entrepreneurs we were inspired by the early innovation delivered in consumer messaging services, yet we know that those services don't work in a business environment. Today there is a pent up demand for mobile messaging that's cross-device, cross-platform and cross-company,' said Brett Hellman, Founder and CEO of Hall. 'With this round Hall will deliver next generation messaging and collaboration solutions which are currently under-served by inadequate or antiquated, on-premise offerings.'

'Messaging is the next frontier in the enterprise for SaaS. We were incredibly excited to see thousands of teams living on Hall's platform and the early team Brett has assembled to scale it further,' said Sundeep Peechu, a Partner at Felicis Ventures.

'Hall is intent on changing how we communicate at work,' Said Tim Connors of PivotNorth Capital. 'Vision, passion, technical capability, and iteration are a powerful combination.'

'The convergence of consumer and enterprise technologies in the marketplace has gained lots of buzz, but only a handful of companies have executed to create something that can positively disrupt people's work habits in a way that yields incredible results for their productivity,' said Zaw Thet, a Partner at Signia Venture. 'It's our privilege to be working with Brett and his team to help them build the next great SaaS company.'

As part of the deal, Sundeep Peechu of Felicis Ventures will join Hall's board alongside Founder & CEO Brett Hellman and PivotNorth's Tim Connors. Zaw Thet of Signia Venture Partners has also been elected to serve as a board observer. The new investors will join with existing shareholders including PivotNorth, AngelPad and Sand Hill Angels bringing Hall's total investment to-date to $6.4 million.

Hall's founding team is led by Brett Hellman, a former-executive at Intuit, and Ron Adams, previously at Yahoo!, who launched the company with help from startup incubator AngelPad in March 2011. The company's team includes engineers from Palm and Mailbox.

About Felicis:

Felicis Ventures is a boutique venture fund focusing on the areas of mobile, consumer enterprise, e-commerce, education and health. Our goal is to back the iconic technology companies of today and tomorrow. Since 2006 Felicis Ventures has invested in over 100 companies, 47 of which have been acquired by industry leaders such as Google, Apple, Facebook, Microsoft, Disney, eBay, Twitter, Cisco, Groupon and Intuit.

About Signia Venture Partners:

Signia Venture Partners is a unique early-stage venture fund dedicated to helping passionate entrepreneurs build the best new impactful and high-growth companies. Signia operates as co-founders and investors in five key areas: mobility, enterprise, education, e-commerce, and data and in new disruptive technologies, such as quantified and augmented self. Our team is made up of proven entrepreneurs with a track record of success and experience at every stage of growth and with a hands-on approach to technology investing. More @signiavc or http://www.signia.vc

About PivotNorth:

PivotNorth Capital funds founders disrupting the world's largest markets with computer science. We have the combination of successful startup operating experience and outsized VC exits to be the most-trusted advisor to company builders. We are based in Palo Alto, CA. For more information, visit www.pivotnorth.com