Case Study: Copper achieves 2X customer growth and 2-3X faster Postgres performance with Citus Data's Citus Cloud

Copper Powers SaaS Growth by Scaling Out Postgres with Citus Cloud

Copper is a relationship-focused CRM built for G Suite that needed to support heavy, variable workloads—up to 55,000 operations per minute—on a Ruby on Rails stack. As their single‑node Postgres database hit capacity limits, the team faced the prospect of throttling new signups or undertaking a costly, risky rewrite (NoSQL) or time‑consuming app‑level sharding, both of which would divert engineering effort and slow product development.

Copper adopted Citus Cloud, an open‑source Postgres extension offered as a fully managed service, allowing an easy migration without re‑architecting the app and with hands‑on Postgres expertise from the Citus team. The move cut operational effort by ~70%, delivered 2×–3× faster database access and minutes‑instead‑of‑hours index builds, enabled features like multi‑currency, kept developers focused on the product, and supported roughly 2× the customer growth without disruption.

Copper

Kelly Cheng

CTO and Co-Founder