Membership management software for UK associations and professional bodies

Bring your membership CRM, renewals, events, CPD and payments together in one platform - with no per-member licence fees.

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30-day free trial, no credit card required. 90-Day Fit Guarantee: if we miss the agreed workflows, you leave with your data.

Illustration: a membership team on the move with clipboards and folders

Still copy-pasting between spreadsheets and disconnected tools?

Most associations we talk to keep members in a spreadsheet or an ageing database, take bookings on an events site, send email from a mailing tool and chase payments somewhere else. Colossus puts them in one system, so a renewal, a booking or a CPD record updates the member once.

Renewals and dues in one place

Set membership types and renewal dates once. Colossus sends the reminders, raises the invoices, takes the payment and updates the member's record. Lapsed members get their own re-engagement journey. No per-member licence fees, whatever your membership size.

See how renewals work

Events and ticketing

Run AGMs, conferences, courses and regional meetings from the same member records: member-only pricing, early-bird rates, discount codes and attendance written back to the member. Attendees never count as paid licences.

See how events work

CPD and courses

Deliver courses, record CPD, issue certificates and keep the evidence on the member's record through the member portal. Learners are not charged as staff seats: you pay for your team, not your membership size.

See how CPD works

An All-in-One Engagement Platform

Membership, events, CPD, CRM, email, payments and reporting: one login, one member record.

Membership Management

Event Management

Virtual Training & Events

CRM

Email Marketing

Customisation

Reporting

eCommerce

One record per member: application, renewals, bookings and CPD together

A smiling member on a video call, shown on a tablet

What your membership team gets in one system

Manage and grow your customer base and membership subscriptions

Manage and grow your customer base and membership subscriptions with our fully customisable CRM lead tools. Empower your sales and membership team to manage the entire sales and member pipeline with our easy-to-use member CRM software. Your organisation’s team can customise each stage, making the whole process tailored to your organisation’s needs.

Carry out seamless tailored live and virtual events from start to end

You can organise live and virtual events and ticketing using the Colossus Systems Event Management System. Tailor your event registrations: Include early bird pricing, discount codes, and member-only pricing. Your Marketing teams can use our easy-to-implement CMS library to set up event landing pages to increase and drive attendance.

Effortlessly keep track of all transactions, engagement, and attendance.

Securely accept credit and debit card payments. Let users pay online through secure, major payment gateways.

member management software

Built for membership teams, not just marketing teams

A member portal, online payments and reporting that all work from the same member records.

Engage and provide value to your members and audience through a dedicated member-only portal

Marketing teams and membership managers can interact and engage members through a dedicated online portal.

Using the dedicated portal helps you support and engage your members through a member-only online portal, where you can share important updates, member-only content, and courses and events easily.

Make donating, buying your services, subscriptions, and events more straightforward

Provide your audience and members with an engaging shopping cart experience so that they can easily subscribe, renew memberships, purchase events and your products and services at the click of a button. There is no need to set up a costly separate e-commerce platform, increase your revenue with an online store that offers promotional codes, stock levels, and shipping calculations and reports all in one secure and affordable place.

Quickly search, manage and report on the data points that matter to you!

Manage all your customer and member data in a secure cloud-based database, where you can easily follow up, update members' records, view and report on critical data, and communicate with members easily and quickly in one unified place.