IT support built around Tustin businesses
Tustin blends a historic Old Town of small offices with the newer Tustin Legacy area and business parks that are home to technology, healthcare and professional services companies.
Growing companies here need IT that scales: smooth onboarding for new hires, secure Microsoft 365 and cloud environments, and a technology roadmap that keeps up with expansion.
Tustin Legacy, Flight and Old Town
Much of Tustin’s newer business space sits on the former Marine Corps Air Station, which closed in 1997 and is being built out as Tustin Legacy. Its two World War II blimp hangars made the site a landmark; the north hangar burned in 2023. Flight at Tustin Legacy, near Barranca Parkway and Red Hill Avenue on the Irvine line, is a 19-acre creative office campus of about 455,000 square feet, anchored by a space company’s headquarters. The District at Tustin Legacy adds shops and restaurants.
The city’s 2024 financial report lists a large credit union, an electric vehicle maker, a mortgage lender and a space company among Tustin’s ten largest employers. That mix of lending, banking, vehicle and aerospace work draws a steady stream of suppliers and professional firms. Two IT patterns show up again and again:
- Financial and mortgage firms need tight email security, audit trails and access reviews that satisfy examiners and partners. See financial services
- Teams in newer office campuses often start fully in the cloud, then need help keeping Microsoft 365, devices and permissions in order as headcount grows
Old Town Tustin is a different setting: smaller offices, often in older buildings where wiring and wireless coverage take more planning. Whichever side of the city you’re on, it’s about 12 miles from our Huntington Beach office via the 405 and the 55.
Who we work with in Tustin
Tustin Legacy, built on the former Marine Corps air station, has brought new offices, healthcare and tech employers to the city, while Old Town and the business parks near the 5 and the 55 keep a mix of professional firms and growing companies. When you add staff quickly, we handle laptops, accounts and security on day one, so new hires are productive from their first morning.
How CAL IT Group supports Tustin
Our vCIO and vCISO services pair strategic planning with day-to-day support, so Tustin businesses get onboarding and offboarding, cloud management, 24×7 monitoring and security under one per-user price.
- Managed IT services — help desk, desktop management, Microsoft 365 administration and 24×7 network monitoring
- Cybersecurity — SentinelOne MxDR, a 24×7 NOC & SOC, managed SIEM and vulnerability management
- Cloud services and backup and disaster recovery
- Business communications — VoIP administration and connectivity
- IT consulting — vCIO planning and fixed-fee projects
Local, on-site support from Huntington Beach
Our engineers work from our office at 101 Main Street in Huntington Beach and reach Tustin via the 405 and the 55. On-site visits for regular support are included in Managed Care, and our service desk is staffed 5 AM–6 PM Monday–Friday and the same local team is on call for emergencies 24×7.
See our all-inclusive per-user pricing, or learn more about managed IT services across Orange County. We also support nearby Santa Ana, Irvine, Orange and Lake Forest.
