Tom Williams

Senior Vice President Business Development

Tom is a polished business development executive with over 15 years experience leading business development in large and small organizations. With a successful track record of driving profitable revenue growth across international markets, Tom has regularly exceeded corporate revenue and margin goals while building strong sales teams, and growing channel partners, strategic accounts and alliances.

Tom brings a strong knowledge of technology trends, SaaS, and wireless systems, combined with an entrepreneurial, action-oriented style in meeting customer needs. 

Most recently Tom served as Vice President of Business Development for Boingo, where he oversaw sales efforts for DAS, Small Cells, Wi-Fi, Network office and Loyalty / Benefit Platforms at major venues like stadiums and airports.    Read More...


Adam Sewall

Adam is the Founder and CEO of Waterleaf International LLC 

Adam has been a successful senior executive and entrepreneur in the telecomm industry for more than 20 years. Adam has demonstrated success in complex technology deployments, as well as strategic planning, corporate development M&A, business development, operations and general management. This experience also includes several significant liquidity events for shareholders. 

Adam has had significant experience on the design and deployment as well as the operations of fiber, cellular, point to point and other communications networks in the US, Asia and SE Asia. Included in these deployments are AMPS, GSM, CDMA/TDMA, spread spectrum, Wi-Max/Wi-Fi and various Metro and Long Haul fiber deployments. 

Prior to Waterleaf Adam was the President and CEO of T3 Communications Inc. ( a next generation CLEC based in Florida.   Read More...

Engineers & Scientists

Marshall Howard

Marshall Howard EVP at Waterleaf has over 20 years of senior management experience...

This experience is in both startup operations and Fortune 500 companies in multiple areas including Operations, Engineering, and Technology Implementation, Business Planning/Budgeting, Finance/M&A, Revenue Assurance, and Regulatory Affairs.

Mr. Howard is currently serving as the Senior Project Manager and providing other consulting services for multiple network builds and R&D in the US. He is also serving as Board Advisor at, an ecommerce startup venture.

Previously Mr. Howard served as a Vice President at T3 Communications, Inc., a Fort Myers, FL based CLEC and managed services provider. While at T3 he led several projects including T3’s conversion to a fiber based network infrastructure, deployment of WiMax based last mile connectivity, Operational and Support System (OSS) development and opening T3’s Winter Haven data center. His focus on customer service also led to T3 reaching a 99% customer satisfaction rating. Read More...

David Levitan

President and COO of Waterleaf International LLC

David has over 30 years' experience as a telecommunications industry executive, leading technology and services organizations that have designed, built, and maintained fiber and wireless infrastructure across the US and internationally. He has
extensive development, product marketing and general management experience operating independent, sponsor-backed, and publicly-traded companies
Prior to Waterleaf, David was the CEO of Tachyon Communications Services (, a private equity backed provider of services for leading  broadband and wireless network operators.   Read More...