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Powerful Labor Union Membership Management Software

About eMembership

Welcome to eMembership, the most powerful and flexible membership and dues system on the planet. Built specifically for labor unions, eMembership is easy to configure, easy to use, and easy to manage.

​eMembership has everything you need to effectively manage your labor union including:

  • Membership management
  • Payment processing
  • Invoicing & dues
  • Employers & contracts
  • Grievances
  • Organizing
  • Unlimited reporting, & much more!

Trusted by Millions of Union Members

Learn how eMembership supports better engagement with your members, more efficient union operations, and a stronger union community.

Questions about eMembership?


“We liked the discovery process as well as the development and final functionality of the customized software. Great programmers along with a team that really got in tune with our needs. Understanding changes needed along the way and adjusting the software in preview sites before actual application has been beneficial as well. I would highly recommend Winmill software for your business solutions. Professional expertise is what you will experience with this team!”

David F., President, IATSE Local 110

“eMembership has been a huge success for our organization. Winmill customized it exactly the way we needed. We finally have all of our data in just one system, which saves us an enormous amount of time and effort. We are able to support our members better than ever before. Thank you Winmill!”

Mary Ann P., Fund Administrator, Superior Officers Council, NYPD

“We had a system that really didn’t work for a union. We wanted to move from an accrued-based accounting system into more of a cash-basis system. Our old software couldn’t handle that. It was a nightmare. We evaluated three companies; eMembership just seemed so user-friendly. Reporting was simple. Winmill made the transition—a really intense and rigorous process—easy. There has never been a time when I wasn’t able to get in touch with someone. Everything has been so easy. It simplifies my life. And the online portal is such a convenience to our members. And Winmill continuously reaches out and follows up, including when new modules come out. I really appreciate that. It’s been awesome.”

Marlaina F., ILWU Local 13

​”eMembership has enabled us to run our operations and to engage with our members in ways we never thought possible. It supports our membership team, finance team, organizers, field reps and executives, saving us valuable time and increasing collaboration across our staff. We didn’t think we would find a vendor that could accommodate our highly specific set of requirements, but the WinMill team has exceeded our expectations every step of the way.”

Jessica S., Director of Membership & Communications, PSE SEIU Local 1948

​”Winmill has always accommodated our every need and has proven to be flexible enough to meet our demands. When Maryland became a right-to-work state, we were impressed by Winmill’s ability to quickly deploy electronic signatures for membership cards, as well as online voting for contract ratification. Winmill hasn’t simply met our requirements, they’ve helped us improve our business.”

Tracy T., Director of Member Services & Operations, SEIU Local 500

“Our previous database was so slow. We were considering two companies, and then we ended up with Winmill. I felt they were more personable; they focused on our needs instead of just talking about the product. And their price structure is very straightforward. With our previous database, you had to build a query in SQL, and if the syntax was just slightly wrong, it would fail. We wanted something more modern and with fewer bugs. The Winmill software was easier to navigate and cleaner. They also lived up to other promises well. Whatever needed to be fixed, got fixed. Everything has gone well.”

Business Manager, SEIU Local 526M

“Winmill eMembership has helped us increase the accuracy of our data and dues collection process for our members and the contracts that we manage. This has increased our collection rate and the overall efficiency of our membership team here at the Local.”

Carey M., Director of Operations, SEIU Local 105

“It’s a very powerful system that helps us house member and contract info. Customization for your organization is a huge pro.”

eMembership user

“Working with Winmill was a pleasure. The team was efficient and pleasant, and eager to make sure we built the database into something useful for us. Taking an ‘out of the box’ template and building it to work for our Local was exactly what we needed.”

Steve K., Field Representative, IATSE Local 839
“Working with eMembership’s team has been a phenomenal experience. We are very pleased with the knowledge and understanding that they’ve demonstrated. They have been extremely responsive and flexible to our unique needs. We’re very satisfied with initial phases. The team at Winmill have been very helpful offering insights to scenarios that we were not anticipating. Looking forward to seeing where eMembership takes us.”
eMembership user, SEIU Local 26

All the Data You Need, At Your Fingertips

eMembership gives you easy access to all data in your system. Non-programmers enjoy using our simple checkbox and picklist interface to visualize data. Customizable dashboards provide graphs and charts with the real-time membership data you need.

local unions

Harness valuable insights effortlessly with eMembership’s Reports and Queries Module. Craft queries easily with checkboxes, or delve into advanced SQL for precision. Access data swiftly, refine in Excel, and empower your union administration.

eMembership union query builder
eMembership union query

Stay Connected With Unlimited Integrations

eMembership is built on an open, flexible architecture that allows you to integrate with any third-party system. For example:

  • Financial Systems.  Share information between eMembership and systems like QuickBooks, Sage, or Peachtree. The most common implementation is to send dues owed from eMembership to the accounting system, where it is booked as a receivable.

  • Document Management Systems.  Several of our clients use robust document management systems for full-text searching and document indexing.  New documents loaded into the document management system are automatically made available from eMembership (member documents, employer documents, contracts, etc).

  • eMail Services.  We have clients using MailChimp, ConstantContact, ConnectInBlue, and more.  eMail campaigns can be initiated from eMembership, automatically run in the third-party system, with results automatically loaded back into eMembership.

  • SMS Services.  Integrate with systems like Twilio to send bulk text messages, and/or to communicate one-on-one with members.

  • Salesforce.  Using Salesforce standard APIs or file transfers, we can integrate eMembership with Salesforce. We have several clients whose field staff use Salesforce, so integrating member information with eMembership was a big win.

  • Payment Gateways.  We have integrated with half a dozen payment gateways that allow our clients to process online credit card, debit, and/or ACH payments.

  • Collaboration Systems. Is your local using a system like Higher Logic, Zoho, or Discourse? Integrate with eMembership to ensure you always have one system of record, while all systems are sharing the same underlying data.

  • Websites and Mobile Apps. Integrate your member portal and member app, facilitating member self-service that never requires updating multiple systems.

  • And More… eMembership can integrate with any third-party system that has API or file upload capabilities.

It’s time to connect all of your systems, and to stop updating data in multiple places. It’s time for unlimited integrations. It’s time for eMembership!

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