About Us

Most people want to give more than they already do, but life frequently gets in the way. If you do get around to donating, there’s no simple way to learn which organizations create real change. And once you actually donate, there’s little transparency into where your money goes. Momentum is changing that – we’re creating an effortless way to live up to your values and make a real difference.


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Our Values

What We're About

about us


First and foremost, our goal is to make the world a better place. That happens through the organizations we work with and fund, and the hard work of our incredible team. We make every decision with an eye towards how it can improve the world.


We strive for transparency, both internally and externally. We aim to act with integrity and present our choices openly and transparently, with an eye towards what we may be missing and how we can learn from others.


We value excellence and reliability in everything we do. Providing a top-quality experience to our customers is our top priority, and we aim to embody that in our products, our services, and our choices.


We’re never stagnant - we’re always improving as a company and as individuals. We deeply value the growth mindest and always look for ways to improve - our fundraising tools, our company culture, our own mindsets and behaviors.

Our Story

How it all started

In 2016, Ari and Nick were researching donation psychology at Duke’s Center for Advanced Hindsight with Professor Dan Ariely. Their background in behavioral science led them to realize that there were a lot of easy ways to improve the donation process to help high-impact charities raise more money. They teamed up with Ivan and launched the first version of Momentum’s mobile app in 2018, helping donors set up creative recurring donations. Over time, they saw that charities and political organizations had an even greater need for better fundraising tools, and Momentum shifted to building fundraising tools that build lasting relationships and increase recurring giving.

Our Team

Behind the scenes

Nick Fitz


Nick studied philosophy and policy at Grinnell and has an MA in psychology from the UBC. His work has been featured in The Washington Post, Vox, and Nature. Recently he was a senior behavioral scientist at Duke’s Center for Advanced Hindsight. Nick enjoys porches, funk music, and thoughtful conversations.

Ari Kagan


Ari studied decision making at Yale. Recently he researched behavioral science with Dan Ariely. There he studied donation psychology, helped run a startup accelerator, and studied financial decision making. Ari enjoys jamming on violin, rock climbing, popping bubble wrap, (unclosed parentheses, and improv.

Sarah Cohan


Sarah received her Master’s in Media Studies from Vrije Universiteit in Amsterdam. She has dedicated her career to fundraising for nonprofits including the San Francisco Symphony, San Francisco AIDS Foundation, and Burning Man Project. She enjoys podcasting, comedy, and long walks with her dog Freedia.

Torin Rudeen

Senior SWE

Torin studied computer science at Princeton, and has an MA in CS from Stanford University. Recently he worked as a site reliability engineer and software engineer at YouTube, working on YouTube’s web serving infrastructure and recommendation algorithms. Torin enjoys music, fitness, and spending time with his wife.

Vaidehi Agarwalla

Operations Manager

Vaidehi studied sociology and statistics at Haverford College. She is from Singapore, and has a background in marketing, operations, and recruiting. She recently worked in a boutique consulting firm, and she previously interned with Charity Entrepreneurship. Vaidehi enjoys mockumentaries, kayaking, and playing the piano.

Cameron McCallie

Software Engineer

Cam hails from the great state of Kansas and studied computer science and theater at Duke University. He’s worked at tech startups in real estate, healthcare, and entertainment. In his free time, he travels to random places, pretends he knows a lot about electronic music, and live streams Terraforming Mars on Twitch.

Benji Gering

Partnerships Manager

Benji studied civil engineering in his (antipodean) homeland. He helped launch multiple global markets at Procore, and has since worked for a range of non-profits and start-ups in multiple industries. He enjoys Europop, unorthodox adventures, and other people's perspectives.