All-in-one chamber software

Spend less time on admin. More time on your members.

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Trusted By:
Chelsea Chamber of Commerce logo
Medford Chamber of Commerce logo
Melrose Chamber of Commerce logo
Reading-North Reading Chamber of Commerce logo
Woburn Chamber of Commerce logo
Bedford Area Chamber of Commerce logo
Stoneham Chamber of Commerce logo
Malden Chamber of Commerce logo
Software built for your chamber

Custom software to help chambers thrive.

Member Management

Keep every member, business, contact, and renewal organized in one centralized system.

Invoicing & Payments

Automate dues and payment collection to improve cash flow and reduce manual work.

Event Management

Plan, promote, and manage events from registration to attendance tracking with ease.

Retention & Growth Tools

Increase renewals, engage members year-round, and attract new businesses to your chamber.

Built for your chamber

Not generic software. Shaped around how your chamber works.

Every chamber is different — your membership tiers and dues, your signature events, your sponsors and committees, your region. Diagonal™ is configured around your chamber instead of forcing you into a one-size-fits-all template, and it keeps adapting as your programs grow.

01

Your membership model

Tiers, dues, billing cycles, in-kind memberships, and sponsorships set up the way your chamber actually runs them.

02

Your programs and brand

Your signature events, committees, and a website that looks like your chamber, not a generic template.

03

Evolves with you

As your chamber grows, new value-adds and tools get added over time to match where you are headed.

Focus on What Matters

Stop doing the busywork by hand.

The day-to-day admin of running a chamber adds up fast. Diagonal™ automates the repetitive parts so your team can spend its time on members, events, and growth instead of data entry.

01

Renewals and dues on autopilot

Recurring dues bill automatically, reminders go out on their own, and payments reconcile without anyone chasing them down.

02

Invoices in seconds, not spreadsheets

Create one-off invoices for sponsorships, events, and custom fees in a few clicks, or let recurring dues handle themselves.

03

Events without the busywork

Registration, ticketing, reminders, and check-in live in one flow, so an event that took weeks to coordinate takes a fraction of the time.

04

One login instead of five tools

Members, payments, events, and your website share the same system, so your team stops copying data between disconnected tools.

From Diagonal for Chambers

Listen to Beyond the Ribbon Cut.

Our podcast for chamber leaders, where executives share the real, tactical work behind running a chamber, far beyond the ribbon cutting.

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