Persistent Systems

Persistent Systems has earned rankings on 11 AgencyCluster lists: Top 50 Systems Integration Services, Top 25 Data Engineering & Analytics in California, Top 25 Legacy Modernization, and 8 more. Their highest AgencyCluster Score is 91/100. Rankings are merit-based and determined by evidence across six evaluation pillars — agencies cannot pay for higher positions.

In our evaluation for Systems Integration Services, Persistent Systems scores 91/100 overall. Their strongest areas are Reputation, Category Fit, Delivery Maturity, Freshness, Credibility, Proof of Work & Outcomes. A high Outcomes score means they have verifiable case studies with measurable results — the most heavily weighted factor in our methodology.

Persistent Systems was founded in 1990, giving them over three decades of experience in legacy modernization. In an industry where many agencies are less than 5 years old, 36+ years of sustained operations signals stability, client retention, and the ability to adapt through multiple technology cycles. Today, the team is large team.

Persistent Systems holds the following credentials on AgencyCluster: Google Partner, AWS Partner, Microsoft Partner, Salesforce Partner. These badges are verified by our editorial team and contribute to the agency's Credibility pillar score. Certifications like partner badges (e.g., Google Partner, AWS Partner) indicate that the agency has met specific vendor requirements for expertise and client outcomes.

Persistent Systems is listed across 4 categories on AgencyCluster: Legacy Modernization, AI/ML Development, Data Engineering & Analytics, Systems Integration Services. This indicates a full-service or multi-discipline capability. Multi-service agencies can be advantageous when your project spans several disciplines (e.g., design + development + marketing). However, check their scores per category — an agency may be strong in web development but less specialized in, say, AI/ML. Specialists maintain deeper expertise, established workflows, and benchmarks in their focus area. They've solved similar problems before, which reduces risk and accelerates delivery compared to agencies learning your domain on the job.

Yes. Persistent Systems has been vetted and verified by AgencyCluster's editorial team through a rigorous, multi-factor review process. Unlike self-serve directories, AgencyCluster does not accept automated submissions — every agency is evaluated manually before being published. Our vetting covers identity verification (website, LinkedIn, domain age), business legitimacy (years of operation, team size, registered presence), evidence of work (case studies, portfolio, client outcomes), reputation checks across third-party platforms, activeness and freshness of their online presence, and screening for red flags including misconduct, fraud, or misleading claims. Agencies that fail any critical check are not listed. For Persistent Systems, verified signals include a functioning website, LinkedIn company profile, 36+ years of operating history (founded 1990), 4 verified certifications, 11 earned rankings on curated top lists.