A family owned
prospect research company
DonorSearch was founded in 2007 with one goal: to provide more accurate, more comprehensive, more actionable data to help nonprofits of all types achieve better fundraising and outreach results. Using information from dozens of databases, DonorSearch uses proprietary algorithms to help clients find the best philanthropic prospects. Come see why thousands of nonprofit organizations trust DonorSearch today.


To provide premier donor intelligence data and solutions to nonprofits of all shapes and sizes to strengthen their financial capacity.


To one day make premier prospect research and intelligence data available to ALL nonprofits, regardless of size or budget.
13 years of helping nonprofits achieve their mission
Bill Tedesco
Bill Tedesco is a well-known entrepreneur in the field of philanthropy with years of experience at the helm of companies serving the fundraising profession. He has personally conducted original research to identify markers of philanthropy and has developed modelling and analytical products that use those markers to accurately predict future giving.
Since 2007, he’s been the founder, CEO and Managing Partner of DonorSearch. DonorSearch is one of a small group of companies providing wealth screening, philanthropic reviews, and online prospect research tools exclusively to the nonprofit market.
Prior to DonorSearch, he was CEO of WealthEngine and Executive Vice President of Target America, which was later purchased by Blackbaud and folded into Blackbaud’s Target Analytics division. Mr. Tedesco was also a principal of BFTConnect/ContactReporter.
He also has four years of fundraising experience as Director of Development for the Fund for Educational Excellence, Baltimore’s public education fund, and as a major gift officer at the University Of Maryland School Of Medicine. He earned B.S. and M.P.A. degrees from Pennsylvania State University and is a frequent speaker at conferences around the United States.
Founded in 2007, more than 12 years and thousands of clients later, our team continues to provide outstanding customer service and innovative technology to help our clients make their goals a reality.







What sets us apart?
DonorSearch is built and run by the Tedesco family. Contrary to all the other companies owned by investment bankers, DonorSearch is more nimble and can focus on investing in innovation for the clients’ long term needs.
Company products, services, and the business model are predicated on Bill Tedesco’s vision for a level playing field in fundraising – Accessible, accurate, and affordable prospect information and best-in-class customer support.
We are committed to excellence in the fundraising industry offering integrations, partnerships and CFRE certified classes to keep you abreast of industry trends.
We introduce a unique blend of philanthropic and wealth data sets combined with real estate, community involvement and corporate affiliations. When non-profits become clients they gain access to the most comprehensive data sets publicly available.
WealthX has a database of net worth data of Top 1%, with greater access to private holdings, which goes beyond the visible, publicly available wealth markers you see in screening results. Finally—A data set that expands the wealth estimation models, beyond real estate and SEC Insider holdings.
Our Social Discovery information builds a 360-degree professional and social profile for the prospect, including social media presence – including follower counts, education, professional summary (pulled from LinkedIn), and social interests.

Find out how DonorSearch can help you find fundraising success

Prospect Identification/Qualification by Giving Interest – Target the precise group of donors/prospects based on any criteria that is specific to your organization
Prospect Ratings based on philanthropic and wealth indicators – Identify and Qualify Prospects with Capacity and Inclination:the best evidence of inclination to give is previous giving
Efficiency in Prospecting/List Refinement – DonorSearch’s proprietary algorithm for matching logic uses both prospect name and address to rate the quality of search results.
Informed Strategies – With complete, current, and high-quality results, the profile can be used to inform engagement and cultivation strategies—with little or no need to validate data.

Depending on your CRM, DonorSearch offers various solutions for data integration:

  • One click profile creation within our custom tool allows easy access to donor data from your CRM.
  • Fully integrated solutions allow not only profile creation, but data integration back into your CRM.
  • Batch import solutions are also available to allow screening results to flow back into your CRM via an Excel/CSV file.
  • Additional functionality within the SalesForce 360io app – run the list of prospects you select as a campaign, run the screening, and automatically load the results, even millions of records back into your SalesForce CRM.

A sampling of our current integrations.
Please contact us to find out if we integrate with your CRM.

Those Involved in Capital Campaigns
Client Experience Matters.
The Client Success team provides training and support tailored to optimal use of the tools and information to meet organization-specific objectives.
We are there for you from day 1 to provide support, guidance and informed strategies in order to help you effectively meet your fundraising goals.