Our Team



From its beginning, Reason to Party has been an all-volunteer endeavor. This allows us to give as much as possible to the charities we support. If you’re interested in helping us make philanthropy fun, we’d love to have you join us!

RTP Executive

Ryan M. Brough
Director of Business Development

Ryan is a Sacramento native and was fortunate enough to be exposed to many of the cultural events Sacramento has to offer as a child. Art, music and the power of a strong community became a clear passion of his at a young age.  After graduating high school, he set off for the Central Coast to attend Cal Poly San Luis Obispo.  There he was studied Urban Planning, Real Estate Development, and Environmental Design.

RTP Executive

Mac Clemmens
Co-Founder, Advisor

Mac joined Reason to Party shortly after its inception and served as Director of Technology and Social Media from 2009-2011 and Chairman of the Board of Directors in 2012, helping to direct Reason to Party’s expansion to Sacramento while helping standardize Reason to Party’s business processes to make it a scalable idea that can take root around the world. Today, Mac serves as special advisor to ensure its ongoing growth. 

Member profile

Alfonzo Collazo
Director of Sponsorships

RTP Executive

Mara Harris
Director of Partnerships

Mara was born and raised in San Diego, California. She completed her Bachelors degree at the University of California Davis and since then has traveled and worked around the world. She began her career in San Francisco working to help low income Californians gain access to legal aid. In 2011 she moved to Cambodia to work with the United Nations and a local non-profit called Legal Support for Children and Women on policy relating to labor migration and human trafficking.

Member profile

Margaret Karl
Director of Events

Margaret Karl was born and raised in the Bay Area and she began her professional career with San Francisco Ballet when she was just 16 years old. While at SFB, she worked with many world-renowned choreographers such as Mark Morris, William Forsythe, Wayne Macgregor, and Christopher Wheeldon, and she received an Isadora Duncan Award in 2006. In 2010 Margaret retired from professional dance and graduated with honors from St. Mary’s College. After leaving the stage, Margaret continued to work with professional dancers pursuing higher education at St.

RTP Executive

Matthew Kimball
Executive Director

Born and raised in the East Bay, Matthew’s first exposure to charitable giving was when he came into the city with his family to see musicals or go to the symphony—his parents would give him $5 to either buy candy or give to someone in need. It was a poignant lesson and he always gave the full $5 to the first person he saw, begging his parents for more cash at every encounter along the way.

Member profile

Paul Mauer
Director of Communications

Paul moved from Ohio to San Francisco in September of 2012, quickly getting involved with Reason to Party.

Since February 2013, he has been closely involved with many facets of the RTP engine — handling all social media, curating the website, developing the infrastructure, assisting in event planning, email and print campaigns, IT consultation, and more. He also works with the marketing team as director of photography and campaign strategy. 

RTP Executive

Brian Pearlman
Chief Financial Officer

As a Deputy Public Defender who protects and defends the rights of SF’s most vulnerable residents through effective, vigorous, compassionate, and creative legal advocacy, Brian is no stranger to serving his community. He brings this same passion to the Reason to Party team, which he joined in 2011. As Treasurer of Reason to Party, Brian is responsible for all financial operations of the company, including financing, reporting, and accounting, and for making sure that we don’t waste any money and thereby donate as much as possible to our beneficiaries.

RTP Executive

Brandon Souza
Director of Branding

Brandon is originally from Hanford, California where he grew up on his family’s farming operation. He graduated from Cal Poly, San Luis Obispo in 2008 with a degree in agriculture business and a minor in agricultural communications.

Member profile

Gregory Vaughan