Company lists · Data refreshed September 2026
Top 25 Membership platform developers based in the United States
RevenueBase identified 110 membership platform developers headquartered in the United States as of September 2026 and tracks 4,865 professional contacts across them, including 1,732 with verified work emails. Atlanta is the largest hub.
This list covers membership platform developers 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 28, 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 membership platform developers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,006 contacts → | ||||
Indirect evidence “ACTIVE Network transforms the way communities come together, facilitating engagement and participation across a spectrum of activities and events.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 867 contacts → | ||||
Partial evidence “Community Brands is now Momentive Software, follow us at Momentive Software helps associations and nonprofits enhance membership management and donor engagement, automate and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 638 contacts → | ||||
Indirect evidence “DISCLOSURE: We aren't Tata Consultancy Services, even though more than 200 'employees' mistakenly claim to work for us.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 384 contacts → | ||||
Indirect evidence “Naylor Association Solutions empowers associations to achieve success through innovative association tools and services for strengthening member engagement and increasing non-dues…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 297 contacts → | ||||
Indirect evidence “Northstar is the leading vendor of Club Management & Community Association Software used by more than 700 clubs & communities worldwide, including 50 Platinum clubs.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 229 contacts → | ||||
Indirect evidence “Advanced Solutions International, Inc.(ASI) is a leading global provider of cloud software and services for associations and non-profits.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 172 contacts → | ||||
Indirect evidence “GrowthZone delivers a full suite of solutions built for member-based organizations.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 136 contacts → | ||||
Partial evidence “Clubessential provides a unified suite of accounting/Point-of-Sale, website, online reservations, and member marketing solutions, all developed within a single architecture, and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 82 contacts → | ||||
Partial evidence “JustGo addresses the needs of Governing Bodies, Sports Clubs, Charities, & Membership Organizations, with an easily managed membership system that provides flexibility across your…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 69 contacts → | ||||
Indirect evidence “AdvantageCS has been developing software for publishers for over four decades.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 62 contacts → | ||||
Indirect evidence “Manage members, events, communities, and virtually everything needed to run your organization – all in one powerful, integrated system.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 49 contacts → | ||||
Indirect evidence “For over 26 years, ACGI Software has been providing best-in-class association management software.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 43 contacts → | ||||
Partial evidence “MembersFirst helps hundreds of member-based organizations attract, engage and retain a vibrant and actively involved membership.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 39 contacts → | ||||
Indirect evidence “Association Management Software for Associations using QuickBooks, built for associations by associations.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 36 contacts → | ||||
Indirect evidence “Club Software Made Simple.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 35 contacts → | ||||
Indirect evidence “Engagifii MEams is the only AMS that delivers a powerful, unified solution for managing every facet of your association.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 31 contacts → | ||||
Indirect evidence “Euclid Technology is a rapidly growing software and services company located in Bethesda, Maryland that provides industry-leading Association Management Software (AMS) to trade…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 30 contacts → | ||||
Indirect evidence “Like your association, member engagement is at our core.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 30 contacts → | ||||
Partial evidence “The MemberPress WordPress plugin lets you build astounding WordPress membership sites, set up subscriptions, build and sell online courses, paywall protect your content, and sell…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 28 contacts → | ||||
Indirect evidence “Associations are here to advance their missions, further their communities, and provide resources for their industry.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 27 contacts → | ||||
Indirect evidence “Integrating with over 40 third-party systems, including iMIS, Aptify, Personify, Higher Logic, cvent, BluePay, ACGI, Digitell, and Stripe, mosaic apps bring value through event…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 24 contacts → | ||||
Indirect evidence “ChapterSpot is a leader in innovative software solutions for chapter-based non-profit organizations.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 22 contacts → | ||||
Partial evidence “Accrisoft Corporation is a website and membership software company dedicated to assisting non-profits in reaching their goals and aspirations.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 21 contacts → | ||||
Indirect evidence “Founded in 1994, Ross Group is a Software Product and IT Services company.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 20 contacts → | ||||
Partial evidence “StarChapter is a member friendly association management software (AMS) that combines event registration, membership management, website design, email communication, and eCommerce…” Source: RevenueBase Database · checked Sep 28, 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: membership platform developers. 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 membership platform developers.
- Partial evidence
- Its own public description names part of membership platform developers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name membership platform developers. 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 110 membership platform developers based in the United States
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Membership platform developers based in the United States at a glance
As of Sep 28, 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 110 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 membership platform developers, 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 “membership platform developers”. 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 membership platform developers), 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 membership platform developers, 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, 1,732 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 28, 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 membership platform developers, 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 membership platform developers are there based in the United States?
RevenueBase identified 110 membership platform developers 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?
Active Network, headquartered in Atlanta, tops this list with the largest team on record.
Which city has the most membership platform developers?
Atlanta leads with 6 headquartered companies, followed by Mclean (3) and New York (3).
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 1,732 verified decision-maker contacts tracked across these 110 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 28, 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 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.
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