Company lists · Data refreshed September 2026

Top 25 Constituent engagement software companies based in the United States

RevenueBase identified 237 company matches for constituent engagement software companies associated with the United States as of September 2026 and tracks 10,096 professional contacts across them, including 4,142 with verified work emails. Washington is the largest hub.

This list covers company matches for constituent engagement software companies associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built
237Companies
10,096Contacts tracked
4,142Verified emails
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The 25 largest constituent engagement software companies based in the United States

Ranked by team size
Top 25 of 237 company matches for constituent engagement software companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLanham, MD, United StatesHQ recorded Sep 21, 20261,001-5,0001,100 contacts →

Exact match

“Moore is a data-driven constituent experience management (CXM) company achieving accelerated growth for customers through integrated supporter experiences across all platforms…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchAtlanta, GA, United StatesHQ recorded Sep 21, 2026501-1,0001,006 contacts →

Exact match

“ACTIVE Network transforms the way communities come together, facilitating engagement and participation across a spectrum of activities and events.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchSt. Petersburg, FL, United StatesHQ recorded Sep 21, 20261,001-5,000867 contacts →

Exact match

“Community Brands is now Momentive Software, follow us at Momentive Software helps associations and nonprofits enhance membership management and donor engagement, automate and…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchSt. Petersburg, FL, United StatesHQ recorded Sep 21, 20261,001-5,000835 contacts →

Exact match

“Momentive Software amplifies the impact of over mission-driven organizations in more than 30 countries, supporting over $11.7 billion raised and 287 million members served…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchDublin, OH, United StatesHQ recorded Sep 21, 2026n/a638 contacts →

Exact match

“DISCLOSURE: We aren't Tata Consultancy Services, even though more than 200 'employees' mistakenly claim to work for us.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchIndianapolis, IN, United StatesHQ recorded Sep 21, 2026201-500514 contacts →

Exact match

“Bloomerang is the Giving Platform built for purpose, trusted by nonprofits to raise more funds, retain more supporters, and create lasting change.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchRedmond, WA, United StatesHQ recorded Sep 21, 2026201-500476 contacts →

Exact match

“Pushpay empowers mission-based organizations to engage their communities by bringing people together and fostering meaningful connections.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchAlpharetta, GA, United StatesHQ recorded Sep 21, 2026501-1,000461 contacts →

Exact match

“We help more than purpose-driven organizations grow and amplify their impact on the world by providing transformative technology and services that enable organizations to grow…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchWashington, DC, United StatesHQ recorded Sep 21, 2026201-500357 contacts →

Exact match

“Quorum is your AI-powered public affairs software to get information and execute strategy all in one place.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchBrooklyn, United StatesHQ recorded Sep 21, 2026201-500336 contacts →

Exact match

“Fundraise Up is a technology company unlocking the world’s generosity potential by optimizing the way people give.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchNewbury Park, CA, United StatesHQ recorded Sep 21, 2026n/a252 contacts →

Exact match

“Clover creates software for real people.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchAndover, MA, United StatesHQ recorded Sep 21, 202651-200188 contacts →

Exact match

“CyberGrants is now Bonterra, part of a cohesive tech lineup under the Bonterra brand.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchScottsdale, AZ, United StatesHQ recorded Sep 21, 2026201-500185 contacts →

Exact match

“Kindsight builds technology that helps fundraisers make a difference.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchWashington, DC, United StatesHQ recorded Sep 21, 202651-200173 contacts →

Exact match

“One Company, One Solution.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchOverland Park, KS, United StatesHQ recorded Sep 21, 202651-200157 contacts →

Exact match

“Nelnet Community Engagement (NCE) exists to empower people to impact the world.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchMclean, VA, United StatesHQ recorded Sep 21, 202651-200117 contacts →

Exact match

“Formerly EventBank, Glue Up is the leading provider of the cloud solutions that provide associations, event organizers, Chambers of Commerce, agencies, marketers, businesses, and…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchSan Francisco, CA, United StatesHQ recorded Sep 21, 202651-200113 contacts →

Exact match

“Almabase helps mission-driven organizations build stronger communities and inspire greater giving.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchLos Angeles, CA, United StatesHQ recorded Sep 21, 202651-20099 contacts →

Exact match

“NationBuilder is the world’s most-used software for politics and advocacy.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchDc, WA, United StatesHQ recorded Sep 21, 2026201-50097 contacts →

Exact match

“NGP VAN is the leading technology provider to progressive campaigns and organizations, offering an integrated platform that combines the best fundraising, compliance, field…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchDE, United StatesHQ recorded Sep 21, 202611-5073 contacts →

Exact match

“GFA Technologies (previously GetFundedAfrica) is a software company focused on solutions that help small and medium sized businesses.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchFort Washington, PA, United StatesHQ recorded Sep 21, 2026201-50073 contacts →

Exact match

“DonorPerfect is a one-stop fundraising software solution that helps nonprofits raise more money in less time.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchPlano, TX, United StatesHQ recorded Sep 21, 202651-20057 contacts →

Exact match

“YourCause is a leader in corporate social responsibility software providing solutions for employee engagement and corporate philanthropy with a suite of software for centralized…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchAtlanta, GA, United StatesHQ recorded Sep 21, 202651-20053 contacts →

Exact match

“Crescerance, Inc.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchWashington, DC, United StatesHQ recorded Sep 21, 202651-20051 contacts →

Exact match

“Engaging Networks helps nonprofits maximize their impact through a suite of world-class, AI-powered, online fundraising, advocacy and digital engagement tools.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchSpring, TX, United StatesHQ recorded Sep 21, 202651-20040 contacts →

Exact match

“Our dream is for everyone to be more connected to God and His Church.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 237 constituent engagement software companies based in the United States

See the full list, filter by size, metro and specialty, and access 4,142 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Constituent engagement software companies based in the United States at a glance

As of Sep 21, 2026
41.0%Verified-email coverage
42.6Average contacts per company
1-10Median size (employees)
8.4%Largest-city concentration · Washington
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
123
11-50
70
51-200
27
201-500
10
501-1,000
2
1,001-5,000
4
10001+
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 237 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “constituent engagement software companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 4,142 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “constituent engagement software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many constituent engagement software companies are there based in the United States?

RevenueBase identified 237 company matches for constituent engagement software companies associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

MOORE tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most constituent engagement software companies?

Washington leads with 20 company records, followed by New York (12) and Austin (6).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 4,142 professional contacts with verified work emails tracked across these 237 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.