Association Management Software You Won't Outgrow
Manage membership, events, finances, your website and more in one place. Simplify daily operations and give your team more time to focus on members and growth.
Trusted by Associations & Membership Organizations Nationwide
Highly rated by association professionals
i4a association management software is rated 4.9 out of 5 on Capterra, GetApp and Software Advice.
i4a was also named a Top Performer in association management software by FeaturedCustomers in Summer 2026.
Seven Core Workflows. One Connected Platform.
i4a is association management software for professional associations, trade associations, association management companies and healthcare organizations.
Works with the tools you already use
i4a connects to your existing WordPress site through the i4a WordPress plugin, and supports single sign-on (SSO) and a REST API for your other systems.
i4a has more than 25 integration partners, including:
- 8am AffiniPay
- NetSuite
- Higher Logic
- Cadmium
- Swoogo
- TalentLMS
8am AffiniPay is a PCI DSS Level 1 certified payment processor.
See all integration partners →Unlimited members on every plan
Starting price $99/month
Pro plan $224/month
i4a pricing starts at $99 a month for one staff user, with unlimited members, and the Pro plan starts at $224 a month.
See pricing for your team →What Changes When Your Association Runs on i4a
One system instead of six
Membership, events, email, payments, accounting and your website share one member record.
Renewals that run themselves
Automated renewals and reminders, so your staff spend less time chasing dues.
A cost that doesn't grow with membership
Pricing is set by staff users, not members, with no per-member fees.
Support that answers the phone
A U.S.-based team that has served associations since 1996.
What Association Leaders Say About i4a

“Since we began using i4a in 2019, our membership has grown more than 1,300%.”
Kerry Bamrick, MBAExecutive Director, Consortium for Advanced Practice Providers
Read Kerry's story →
“Within 3 months we transitioned into i4a, saving 90% of our annual tech costs.”
Patrick FarreyCEO, Society of Plastics Engineers (SPE)
Read Patrick's story →
Trusted by associations across healthcare, education, science and industry
i4a association management software is used by professional, trade, healthcare, scientific and academic associations, including the organizations below.
Healthcare and medicine
- American Psychiatric Nurses Association
- American Medical Group Association
- American Glaucoma Society
- Association of Nurses in AIDS Care
Science and engineering
- International Cytokine & Interferon Society
- Antenna Measurement Techniques Association
- Society of Plastics Engineers
- Institute of Packaging Professionals
Trade and industry
- National Utility Contractors Association
- Property Records Industry Association
- Laboratory Products Association
- California Independent Petroleum Association
Higher education
- American Conference of Academic Deans
- Council of Colleges of Arts and Sciences
- College Language Association
- Pennsylvania Association of Colleges and Teacher Educators
Why Associations Stay With i4a
We've built association software since 1996: 30 years, independent, with no VC pressure to pivot or sell. The team that knows your organization is still here year after year. A few associations have even left for larger platforms and chosen to come back, and told us they were glad they did. Learn about our story.
“After using i4a for many years, we switched to another provider but decided to return about 18 months ago—and we're glad we did.”
People Who Understand You
i4a's team has an average tenure of 19 years, giving associations direct access to experienced people who understand membership management, not scripted call centers.
Rapid Response When It Matters
i4a clients rate its customer support 4.85 out of 5, based on more than 1,000 surveys since 2012. Most support requests receive a same-day response, including during busy renewal and conference seasons.
30 Years of Stability
i4a has served associations since 1996, without venture capital pressure to exit or pivot. Each client's data is stored in a separate database on U.S. servers, with backups every four hours.
Designed for the Way Association Teams Actually Work
For associations that need an AMS that actually fits, without enterprise price tags or complexity.
Also serving education organizations, membership-based nonprofits, and clubs and special-interest societies. See all i4a use cases →
Guides & Tools for Association Leaders
Straight guidance on choosing software, keeping members, and growing.
Is i4a the Right Fit for Your Organization?
See how growing associations run on i4a. Walk through it with our team.
No pressure, no obligation, just a conversation about how your association works.