OLSYS

About OLSYS

OLSYS is a Chicago-based enterprise software development company with 15+ years of experience building long-term partnerships that accelerate digital experiences. They specialize in custom software, managed services, and infrastructure support across banking, retail, and healthcare sectors.

Who OLSYS Is Best For

OLSYS is best for mid-market and enterprise companies in banking, retail, or healthcare looking for a long-term managed software development partner. With 15+ years of experience and a team of 50-249, they suit organizations that want a stable, established vendor for ongoing development and infrastructure support rather than a one-time project shop. Not the right fit for startups or companies seeking short-term, fixed-scope engagements.

Why Choose OLSYS

Things to Consider

OLSYS Services

Selected Work

AI-Native Product Development at Scale

EltegraAI

Olsys partnered with EltegraAI to build an AI-native product development platform that streamlines the software delivery lifecycle, scaling engineering capacity for faster delivery, higher quality, and enterprise-grade compliance.

View case study

Real-Time Payments for Bank of Montreal

Bank of Montreal

Olsys modernized Bank of Montreal's payments infrastructure into a real-time ecosystem supporting faster transactions, 24/7 payment capabilities, and improved customer experience across North American retail and commercial banking.

View case study

eCommerce Platform Modernization in 4 Months

Rough Country

Olsys delivered a dual-portal cloud-native eCommerce platform for Rough Country in four months, with dedicated retail and dealer journeys built for peak promotional traffic and thousands of SKUs.

View case study

Photos