About Gluebox

Gluebox.com LLC is a software development company based in Philadelphia, Pennsylvania. We build calendar, reservation, and event management systems on open-source Drupal for organizations that need to coordinate shared spaces, schedule events, and manage community participation.

What We Build

Our primary product is RSVP System, an open-source Drupal platform that provides composable building blocks for event calendars, room and resource reservations, RSVP and attendance tracking, and multi-community management. RSVP System is designed for universities, municipalities, membership organizations, and any group that manages shared resources and community events.

How We Work

We deliver solutions as Drupal recipes — modular, composable configuration packages that can be assembled into a working site without a monolithic installation profile. This approach lets organizations adopt only the features they need and extend them over time. All of our core packages are open source and distributed through Packagist and GitLab.

Open Source

Our code is publicly available on GitLab under the GPL-2.0 license. We believe in building on shared infrastructure and contributing back to the Drupal ecosystem.