Fiserv Portico — originally developed by Open Solutions, Inc. and acquired by Fiserv in 2011 — serves over 700 credit unions in the mid-market segment ($50M–$3B assets). It is a well-established platform with broad feature coverage across member services, lending, and back-office operations. While the platform has evolved under Fiserv ownership, many clients run core workflows that haven't changed significantly in a decade.
The most widely deployed mid-market credit union core in the US. Aerial is built to integrate directly with Fiserv Portico — your core stays exactly as it is, and your members get a modern account opening experience that converts.
Aerial integrates with Fiserv Portico through Fiserv's certified API layer. Member creation, account opening, and funding are handled in a single Aerial session, with results written back to Portico in real time. Aerial is designed to work within Fiserv's certified partner framework, so your existing Fiserv relationship stays intact.
Fiserv Integration Layer (Portico APIs)
Aerial has built integrations with Fiserv Portico specifically. We can walk you through exactly how the data flows, what your members will experience, and what your IT team will need to do (spoiler: not much).
Representative institutions publicly known to use Fiserv Portico. This is not a complete list.
| Credit Union | State | Total Assets |
|---|---|---|
| Truliant Federal Credit Union | NC | $5.3B |
| American Airlines Credit Union | TX | $8.2B |
| Credit Union of Texas | TX | $2.1B |
| Nuvision Federal Credit Union | CA | $3.3B |
Integration data current as of 2026. Credit union asset data from NCUA Q4 2024. Core platform information from public vendor disclosures.