The 100% Model

100% of public donations funds clean water projects.

We depend on private donors, foundations and sponsors to cover everything from staff salaries to basic office systems to office rent and supplies. These donors are some of our most dedicated: their investment fuels our long-term mission, our ability to scale as an organization and our mission to continue using 100% of public donations for water projects. Wondering if our 100% Model has been audited?

Download the 100% model audit opinion

Angel Investors: Michael & Xochi Birch

Our Angel Investors are donors who recognize the impact of a major gift to our operations. Like any startup business, we need investors who believe in, and support our business model. But we can't offer stock options or the promise of a big buyout; so instead, our investors' ROI is measured in the amount of people we serve with access to clean drinking water.

Our largest operations gifts have come from entrepreneurs Michael and Xochi Birch. To date, the Birch Family have invested more than $10.5 million towards charity: water's infrastructure and work in the field. We're honored to have their support and grateful for their belief in our work.

Birch photo
The well

The Well: Membership Program

Our goal for the 100% program model is ambitious. To support our growth, we bring together a like-minded community of business people and philanthropists to fund our operating budget on a regular basis.

The Well is a membership program where donors give a set amount to our operating costs each year. Their support paves the way for us to continue doing what many said was impossible: scale the organization using our 100% model and give clean water to every single person on the planet.

The well

Other Funding


A few of the foundations that have funded our operations:

  • Select Equity Group
  • Provision Foundation
  • Skirball Foundation
  • Bilger Foundation
  • Heritage Mark Foundation

Corporate Sponsorships

We partner with corporations for matching programs, public campaigns, employee engagement and other fundraising ideas tailored to the business' market and brand.

Get your company involved

Gifts in Kind

From technologies to office furniture, much of what our staff uses is donated by generous businesses. We're deeply grateful to those who provide equipment and materials to help us get the job done with quality and style.

See our in-kind donations