Company lists · Data refreshed September 2026
Top 25 Citizen engagement software companies based in the United States
RevenueBase identified 128 citizen engagement software companies headquartered in the United States as of September 2026 and tracks 5,317 professional contacts across them, including 2,491 with verified work emails. New York is the largest hub.
This list covers citizen engagement software companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 14, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.
The 25 largest citizen engagement software companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,601 contacts → | ||||
Indirect evidence “At Granicus, our mission is to help better engage government and the people they serve.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 907 contacts → | ||||
Indirect evidence “CivicPlus is the only government technology company exclusively committed to powering and empowering governments to efficiently operate, serve, and govern through the use of our…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 3 | 490 contacts → | ||||
Indirect evidence “Accela provides a unified suite of cloud solutions trusted by governments across the globe to accelerate their digital transformation, deliver vital services, and build stronger…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 287 contacts → | ||||
Partial evidence “Polco is the trusted civic engagement and data platform that empowers public-sector leaders to hear from residents, leverage AI, and make smarter decisions-all while ensuring…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 187 contacts → | ||||
Indirect evidence “V-Empower, Inc.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 123 contacts → | ||||
Indirect evidence “CentralSquare provides technology solutions that help over 7,500 public sector agencies deliver vital safety and administrative services to 3 out of every 4 residents of the U.S.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 7 | 100 contacts → | ||||
Partial evidence “CSDC helps hundreds of governments operate more efficiently and effectively by modernizing how they engage with their citizens and streamlining and automating citizen-facing…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 99 contacts → | ||||
Partial evidence “NationBuilder is the world’s most-used software for politics and advocacy.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 9 | 89 contacts → | ||||
Partial evidence “At E-Ring, Inc, we believe that modern governance demands more than digital record-keeping-it requires intelligent software that transforms complex data into actionable insights.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 60 contacts → | ||||
Indirect evidence “Polimorphic is on a mission to create technology that lets governments of all sizes deliver for the people.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 59 contacts → | ||||
Indirect evidence “CentralSquare provides technology solutions that help over 7,500 public sector agencies deliver vital safety and administrative services to 3 out of every 4 residents of the U.S.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 12 | 49 contacts → | ||||
Indirect evidence “Indigov is a communication platform designed to help elected officials and government departments respond and reach out to constituents in a timely and personal manner.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 13 | 43 contacts → | ||||
Indirect evidence “Our products are designed to meet diverse local government needs.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 14 | 41 contacts → | ||||
Indirect evidence “Government technology has failed the public for decades, and Americans have been conditioned to expect websites from the 90s, even for the most important civic services.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 15 | 40 contacts → | ||||
Partial evidence “PublicInput is the operating system for public engagement.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 16 | 33 contacts → | ||||
Partial evidence “Since Portland Webworks has been building custom software solutions that delight customers, improve efficiency, and drive business goals.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 17 | 33 contacts → | ||||
Partial evidence “Diversified Technology is a software development and support organization that focuses on helping municipalities and municipal authorities leverage advances in technology to…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 18 | 28 contacts → | ||||
Partial evidence “Government Made Simple - for citizens, staff and elected officials.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 19 | 26 contacts → | ||||
Partial evidence “Government Brands is the preferred partner for government software solutions and integrated payments.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 20 | 24 contacts → | ||||
Partial evidence “Our cloud-based software solutions are built for people who want better government by modernizing and transforming public facing government processes to more effectively serve…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 21 | 22 contacts → | ||||
Partial evidence “Citibot provides tools for citizens and their governments to use for efficient and effective communication and civic change.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 22 | 22 contacts → | ||||
Indirect evidence “Civic Roundtable is the government operations platform trusted by public servants at organizations in all 50 states and recognized as one of Fast Company’s Most Innovative…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 23 | 22 contacts → | ||||
Partial evidence “SmartForce is a company dedicated to transforming law enforcement through innovative software solutions.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 24 | 20 contacts → | ||||
Indirect evidence “Strategic Technology Partner Empowering Communities to Modernize and Flourish.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 25 | 20 contacts → | ||||
Partial evidence “Our mission is to help city governments streamline their internal operations and ignite vibrant civic engagement.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: citizen engagement software companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names citizen engagement software companies.
- Partial evidence
- Its own public description names part of citizen engagement software companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name citizen engagement software companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 128 citizen engagement software companies based in the United States
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 2,491 reachable decision-makers.
Free signup · no credit card
Citizen engagement software companies based in the United States at a glance
As of Sep 14, 2026Companies by employee count
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 128 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among citizen engagement software companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “citizen engagement software companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names citizen engagement software companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among citizen engagement software companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 2,491 across the full list. 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 14, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names citizen engagement software companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many citizen engagement software companies are there based in the United States?
RevenueBase identified 128 citizen engagement software companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Granicus, headquartered in Denver, tops this list with the largest team on record.
Which city has the most citizen engagement software companies?
New York leads with 7 headquartered companies, followed by Austin (4) and Washington (4).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,491 verified decision-maker contacts tracked across these 128 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 14, 2026.
Ready to reach these companies? Verified emails and direct dials for all 128 citizen engagement software companies based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Citizen engagement software companies by geography
Browse the directory
Browse: Companies home · All United States lists · All Citizen engagement software companies lists · New lists
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 Smart Search, 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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Citizen engagement software companies based in Brazil
- Citizen engagement software companies based in France
- Citizen engagement software companies based in Germany
- Citizen engagement software companies based in the United Kingdom
- AI companies based in the United States
- Cybersecurity companies based in the United States