About Us

Who we are

ClearView CRM is a team of seasoned nonprofit and technology professionals who are committed to helping mission-based organizations grow.


John Rees​


Cofounder John Rees is Doubleknot’s CEO. Prior to Doubleknot, John was responsible for sales and service delivery as a Vice President of Professional Services for the US practice of Burntsand, a publicly traded international IT consultancy that acquired Altro Solutions, where John was  co-founder and Chief Operating Officer. Previously, John served a Senior Manager for KPMG, where he led large consulting teams engaged in business process design and development of complex mission-critical solutions for Global 2000 clients.

Karen Harris Melendez

VP of Product Development and Professional Services

Karen Harris Melendez has been an executive in the nonprofit industry for more than 25 years. She was the Director of IT at The Fresh Air Fund from 1994 to 2001. In 2001, she launched KHM Business Intelligence LLC and provided a myriad of consultative services to nonprofit organizations for almost twenty years before joining Doubleknot. Karen holds a bachelor of science degree in information systems management from York College. A native New Yorker, she resides in New Jersey with her family.

Tracy Pericozzi

Director of Software Engineering

Tracy Pericozzi guides software engineering efforts for ClearView CRM, overseeing business intelligence, database, and Java engineers. She began her career with the company as a data conversion programmer, moved on to the engineering team, formed the business intelligence team, became Manager of Professional Services, and ultimately took on her current role overseeing all company engineers. Her bachelor of science degree is in computer information systems from Buffalo State College.

Brian Feldman


Brian is an experienced sales professional who has worked in the ticketing solutions industry for three decades, most recently with Tessitura Network for the past 15 years. He also sold software at Choice Ticketing for four years and at ArtSoft/Advantix/Tickets.com for 10 years. Other work included three years at a university performing arts center in sales and marketing, a three year stint as ticket manager with a professional football team, and two years at a commercial theatre as House Manager. Brian lives outside New York City), where he and his wife Nancy have three sons. He is an active member of his local community theatre as both box office manager and performer, and is a lifelong baseball fan who grew up in St. Louis rooting for the Cardinals.

What we believe

We believe that nonprofits of all sizes deserve best-of-breed fundraising solutions to drive their missions. With dozens of off-the-shelf integrations and an open API, ClearView CRM empowers your team to select the right research, engagement and donations solutions for your community and unique needs.

How we help

ClearView delivers more than a powerful CRM—our goal is to be a dedicated long-term partner who’s committed to your success. We continuously build new features and new integrations based on evolving best practices in both digital and traditional fundraising.

At ClearView, you’ll know your dedicated account manager and support team by name (and they’ll know yours, too). We’re here to help you boost engagement, amplify advocacy and guide every prospect, volunteer and donor along their unique donor journey.

Helping nonprofits achieve their goals.

Streamlined operations. Innovative technology. Exceptional support.