Computer Systems Plus, Inc. delivers enterprise-grade IT management, cybersecurity, and support to small and mid-sized businesses throughout the Central Valley.
24/7 endpoint detection & response
Servers, routers & infrastructure
Reliable business email & calendaring
AI document compliance & review
From cybersecurity and cloud backup to business email and AI-powered compliance tools — CSP covers every layer of your technology stack.
AI-powered PII detection, ADA compliance, and PDF-to-HTML conversion for public agencies — built for the April 2027 DOJ deadline.
Learn moreAI-powered board and meeting management for government agencies and nonprofits — agenda building, live meetings, automated minutes, and public transparency.
Learn moreProactive monitoring, patching, and remote support for your servers, network infrastructure, and every desktop and laptop — powered by NinjaOne RMM.
Learn moreAI-native endpoint detection and response powered by SentinelOne — stop threats before they impact your business.
Learn more15-minute recovery points, ransomware-resistant storage, and automated backup verification — powered by Axcient x360Recover.
Learn moreStop credential-based breaches with Cisco Duo — protecting Microsoft 365, VPN, and cloud applications with a second factor on every login.
Learn moreProfessional business email for your domain — from simple Hosted Exchange to the full Microsoft 365 productivity and security suite.
Learn moreEnterprise spam and phishing protection powered by N-able Mail Assure — 99.99% catch rate, email continuity, and compliance archiving.
Learn moreAutomatic encryption for outbound email containing sensitive data — powered by OpenText, with no software required for recipients.
Learn moreCustom website design and managed hosting for Fresno businesses — SSL, daily backups, uptime monitoring, and local support included.
Learn moreSince 1990, Computer Systems Plus, Inc. has been providing hardware, software, and managed IT services to businesses throughout Fresno and the Central Valley. We've grown from a hardware reseller into a full-service managed services provider — and our clients have grown with us.
We're not a national call center. We're your local IT team — people who know your business, your network, and your goals.
Long-term relationships built on reliable service, quick response times, and genuine care for our clients' success.
"CSP has provided IT services for our companies for over 20 years and has evolved into a vital team member. Their managed services approach keeps our operations running smoothly."
"Managed services from CSP made our IT infrastructure more robust, efficient, and secure. I can focus on my clients knowing our systems are in good hands."
"CSP quickly responds to issues and keeps everything secure. I couldn't do my job without CSP — they've been an essential part of keeping our firm running."
"Their technicians have been excellent servicing our computers and maintaining our internet service. Always professional, always on time."
"Professional and quick to respond. I recommend Computer Systems Plus, Inc. without hesitation to any business looking for a reliable IT partner."
"Ready to experience IT support that actually works for your business? Let's talk about how CSP can simplify and secure your technology."
Talk to a Fresno-based IT professional about your business needs. No pressure, no jargon — just honest advice.