Serving Fresno & the Central Valley since 1990 | (559) 251-7767 | support@cspnet.net | Mon–Fri 8:00 AM–5:00 PM
25+ Years Serving Fresno Businesses

Your Trusted Managed IT Partner in Fresno

Computer Systems Plus, Inc. delivers enterprise-grade IT management, cybersecurity, and support to small and mid-sized businesses throughout the Central Valley.

Managed EDR

24/7 endpoint detection & response

Managed Networks

Servers, routers & infrastructure

Hosted Exchange & Microsoft 365

Reliable business email & calendaring

SentraCheck

AI document compliance & review

35+
Years in Business
10
Services & Products
200+
Business Clients
24/7
Remote Monitoring

Managed IT Services & SaaS Products

From cybersecurity and cloud backup to business email and AI-powered compliance tools — CSP covers every layer of your technology stack.

SentraCheck

AI-powered PII detection, ADA compliance, and PDF-to-HTML conversion for public agencies — built for the April 2027 DOJ deadline.

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CivicCA

AI-powered board and meeting management for government agencies and nonprofits — agenda building, live meetings, automated minutes, and public transparency.

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Managed Networks & Workstations

Proactive monitoring, patching, and remote support for your servers, network infrastructure, and every desktop and laptop — powered by NinjaOne RMM.

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Managed EDR

AI-native endpoint detection and response powered by SentinelOne — stop threats before they impact your business.

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Remote & Cloud Backup

15-minute recovery points, ransomware-resistant storage, and automated backup verification — powered by Axcient x360Recover.

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Two-Factor Authentication

Stop credential-based breaches with Cisco Duo — protecting Microsoft 365, VPN, and cloud applications with a second factor on every login.

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Hosted Exchange & Microsoft 365

Professional business email for your domain — from simple Hosted Exchange to the full Microsoft 365 productivity and security suite.

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Email Spam Filter

Enterprise spam and phishing protection powered by N-able Mail Assure — 99.99% catch rate, email continuity, and compliance archiving.

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Secure Email

Automatic encryption for outbound email containing sensitive data — powered by OpenText, with no software required for recipients.

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Website Design & Hosting

Custom website design and managed hosting for Fresno businesses — SSL, daily backups, uptime monitoring, and local support included.

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Fresno's IT Partner for Over 35 Years

Since 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.

  • Proactive monitoring — we fix problems before you notice them
  • Flat-rate managed services with no surprise bills
  • Local technicians for onsite work throughout the Central Valley
  • Vendor-neutral recommendations — we recommend what's right for you
  • Single point of contact for all your IT needs
Learn More About CSP
Address
2134 North Fine Ave
Fresno, CA 93727
Business Hours
Mon–Fri: 8:00 AM – 5:00 PM

Trusted by Fresno Businesses for Decades

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."

P
Peter E. Alvitre
Biagro Western Sales / California Clementines
★★★★★

"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."

M
Mike Carter
Harbour & Associates
★★★★★

"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."

L
Laura Mathis
Kahn, Soares & Conway, LLP
★★★★★

"Their technicians have been excellent servicing our computers and maintaining our internet service. Always professional, always on time."

K
Kenneth C. Blair
Crown Window Cleaning & Building Services
★★★★★

"Professional and quick to respond. I recommend Computer Systems Plus, Inc. without hesitation to any business looking for a reliable IT partner."

C
Cindy Buyense
Cal Gro Pump Service, Inc.
★★★★★

"Ready to experience IT support that actually works for your business? Let's talk about how CSP can simplify and secure your technology."

Schedule a Consultation

Ready to Simplify Your IT?

Talk to a Fresno-based IT professional about your business needs. No pressure, no jargon — just honest advice.