What membership teams use most
Automate renewals, reminders and approvals
Set up renewal reminders, application approvals and lapsed-member follow-ups once and let them run. Each stage of a membership or enquiry pipeline can send an email, raise a task or change a status, so nothing is missed.
Recruit members and track every enquiry
Landing pages, enquiry forms and email campaigns feed one membership pipeline, so every prospective member is followed up and every application is tracked through to approval.
Report on members, renewals and engagement
Tools that allow you to customise reports and dashboards for easy membership lifecycle tracking and engagement levels.
All reports can be made into downloadable & printable formats and exported into CVS & Excel.

Keep every member, contact and organisation record in one place
Keep all your contact data in one secure place, manage and stay on top of your relationships and communicate in real-time. Access conversation history and filter contact information by title, industry, and relationship to your organisation. Add custom fields and attributes so that you can stay on track and deliver a great experience.
Start empowering your team with useful collaborative tools that raise efficiency and user adoption.
With refinable searches, trackable contact history, audit trail tools & a lot more, our contact database helps you automate tasks, raise engagement & lower member attrition.
Track every conversation, renewal and lapsed member from one CRM


Send renewal reminders and newsletters from the same member data
Run events and ticketing without a separate booking tool


Deliver CPD and courses, and record completions on the member's record
An easy-to-use all-in-one system for businesses of all sizes, member associations, non-profits and charities
Take renewals, event payments and donations online


Keep committee and team tasks on track
With built-in Project Management features, you get a complete overview of shared projects, their pipeline and workflows giving you the ability to monitor and manage actionable tasks, to-do lists and project progress.
Assign tasks, and set up to-do lists, deadlines, & reminders using the built-in project management tools.
Colossus in numbers
Across the organisations that run their membership, events and campaigns on Colossus. Figures as of October 2026.
20,000+
Users on the platform
765
Events run
20,000+
Email campaigns sent
Trusted by associations and businesses including








See it with your own membership data
Set up a 30-day trial with your membership types, a sample of members and your next event, or book a demo and we will walk through the renewals, events and CPD flows your team runs today.
30-day free trial, no credit card required. 90-Day Fit Guarantee: if we miss the agreed workflows, you leave with your data.

