Top IT Services Companies in California

Find top IT service companies in California through DesignRush. Our platform connects you with California IT support companies trusted by brands like McDonald's and Coca-Cola. With over 1M monthly visitors and Fortune 500 companies using our rankings, you can be confident in the quality of every agency listed. Compare providers by industry expertise, client type, budget, reviews, team size, and portfolio.

Top IT Services Companies in California

Compare the leading IT services agencies in California, handpicked for their verified reviews, standout portfolios, and proven expertise, so you can confidently choose the right partner to scale your business.

Agency Name	Why Hire Them	Client Rating	Hourly Rate	Top Client or Case Study	Top Industries
Goji Labs	Trusted by global brands for UX and digital products.	5.0 ⭐	$149	Redesigned Elf on the Shelf website for immersive experience.	Nonprofit, Healthcare, Fintech
Closeloop Technologies	Award-winning, innovative tech solutions for complex needs.	4.9 ⭐	$25	Resolved database outage for Brex in two hours.	Fintech, Healthcare, eCommerce
Mercury Development	Over 2,500 projects delivered for top global brands.	4.9 ⭐	$50	Developed mobile apps for Burger King and Fitbit.	Wellness & Fitness, Healthcare, Retail
Suffescom Solutions Inc	Experts in mobile apps with global industry recognition.	5.0 ⭐	—	Built ridesharing app for GoCar Malaysia.	eCommerce, Healthcare, Fintech
AppMakers USA	MIT, Stanford, UCLA engineers deliver on time and budget.	5.0 ⭐	—	Developed mobile app for CVS Pharmacy.	Retail, Education, Sports
Azumo	Nearshore experts trusted by Meta, Zynga, United Health.	4.9 ⭐	$55	Developed chatbot app for Facebook events.	AI, Fintech, Health Care
Koderspedia	Custom mobile and web solutions with rapid delivery.	4.9 ⭐	—	Web app for Gameloft Montreal exceeded expectations.	eCommerce, Gaming, Real Estate
Aristek Systems	AI and EdTech specialists with 22+ years experience.	4.8 ⭐	$50	Award-winning LMS for K-12 education market.	Education, Health Care, Logistics
SDLC Corp	Full-cycle digital solutions for startups to enterprises.	4.9 ⭐	$50	IoT supply chain project improved delivery for Freight Right.	Logistics, eCommerce, Gaming
Trango Tech	Holistic software and mobile solutions for global growth.	4.7 ⭐	—	Built wellness app for Simple Habit company.	Wellness & Fitness, eCommerce, Real Estate

We Have Researched the Best California IT Support Companies For You

3 Companies-Rankings updated: September 09, 2026

Every agency featured on DesignRush is vetted for expertise and client satisfaction to support your decision-making. Some listings may be sponsored.

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United States × California × Boutique × $1,000 - $10,000 ×Clear Filters

Smile Global
Cutting Edge Managed IT Services
Smile Global was founded with a simple yet powerful belief every organization, no matter its size, deserves enterprise-level IT consulting and support at an affordable cost. We saw the challenges that non-profits and small to mid-size businesses faced with technology and knew there was a better way...
Top Services:
Managed Services
Cybersecurity
IT Services
Cloud Consulting
IT Compliance Solution
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Location
Ventura, California
Number of Employees
50 - 99
Average Hourly Rate
$150/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
1 Project Listed
Smile Global Services
Managed Services
Cybersecurity
IT Services
Cloud Consulting
IT Compliance Solution
Web Design
WordPress Website Design
Web Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
School Districts
Logistics
Law enforcement
Farms
Management Companies
Data sourced from the agency's DesignRush profile
Smile Global Reviews & Testimonials
Becca Rdgz Review from Google
5.0★
Becca Rdgz's Review Sourced from Google
This IT company has been extremely helpful and professional. They respond quickly, explain things clearly, and always make sure issues are fully resolved. Their support has improved our systems and made our work much easier. We truly appreciate their reliability and expertise. 5 stars to Kevin Crabb he is the best.
Mindy Gallina Review from Google
5.0★
Mindy Gallina's Review Sourced from Google
Working with Smile Global has been an absolute pleasure. Their team is professional, friendly, and incredibly reliable — exactly what you want in an IT partner. They’re always responsive and proactive, ensuring that any issue is handled quickly and efficiently.Most importantly, their cybersecurity monitoring gives us complete peace of mind. Knowing our systems are protected around the clock allows us to focus on serving our clients without worrying about security risks.Smile Global truly sets the standard for excellence in IT support and cybersecurity. We couldn’t recommend them more highly!
Sara Pisan Review from Google
5.0★
Sara Pisan's Review Sourced from Google
Kevin and Smile Global are great! Very knowledgeable and kind. Always takes the time to explain things. For someone that is not in the IT world, I find it very helpful. If you have any security, network, or any computer related issues I would highly recommend reaching out to them!
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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5.0 5.0 (25)
Sinelogix Technologies
Bring Business Online And Grow Sales
Sinelogix Technologies: Your Digital Success Partner Since 2012. Elevate with Irresistible Web Design, Development, and SEO. At Sinelogix we do not pull any marketing stunts on our clients, we address the clients needs directly to the point so that it can be time effective and cost effective. Sinelogix...
Top Services:
Web Design
eCommerce Development
Web Development
WordPress Website Design
SEO
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Location
Newark, California
Number of Employees
50 - 99
Average Hourly Rate
$10/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
4 Projects Listed
Sinelogix Technologies Services
Web Design
eCommerce Development
Web Development
WordPress Website Design
SEO
PPC
eCommerce
Email Marketing
Software Development
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Well Living Shop
Indian Beautiful Art
Propervise, Inc.
Tancart
Qorex Outsourcing
House of Chemicals
Nimmed
Medical Products Supply
Toyota
AXA Insurance
Data sourced from the agency's DesignRush profile
Sinelogix Technologies Reviews & Testimonials
Prashant Srivastav Review from Google
4.0★
Prashant Srivastav's Review Sourced from Google
They have good approach implementing e-commerce applications. Provide healthy interaction while gathering the requirements. The best thing they are using the latest technologies running in the market and very good in migrating old and legacy applications.
Himanshu Agrawal Review from Google
1.0★
Himanshu Agrawal's Review Sourced from Google
Overpriced.Just because they are on top of the Google search doesn't necessarily make them the best.You will get a call from US number, california just to impress you and make you believe that you are working with a sophisticated and hifi company.Have been requesting the backup of my website for ages now, no reply received yet.Dont trust them just like that. If possible visit them and meet them.I am in Bangalore and this address is wrong.
Johns Schutz Review from Google
5.0★
Johns Schutz's Review Sourced from Google
We hired Sinelogix to look after one of our projects and they out performed and out delivered. We are extremely happy with the results and hence we use sinelogix for marketing and branding of all our inhouse websites.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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4.2 4.2 (24)
Invoxico Technologies
Crafting Websites, Creating Success!
Invoxico Technologies is an adept company in web design and development, acknowledged for its proficiency in crafting customized digital solutions. Their expert team focuses on UI/UX design, web development, CMS development, eCommerce solutions, and mobile app development, and offers a complete range of...
Top Services:
Web Design
eCommerce Development
UI/UX Design
Web Development
WordPress Website Design
Show more
Location
La Puente, California
Number of Employees
Under 49
Average Hourly Rate
$30/hr
Minimal Budget
$1,000 - $10,000
Invoxico Technologies Services
Web Design
eCommerce Development
UI/UX Design
Web Development
WordPress Website Design
SEO
IT Services
Cybersecurity
Mobile App Development
Digital Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
KAL Trailers & Leasing
Fashion Hunt
Flashfood
Water Ford Whisky
JTFbus
Trueats
Hoppar
Jooska
Simply Smile Studio
Data sourced from the agency's DesignRush profile
Invoxico Technologies Reviews & Testimonials
Akib Ali Review from Google
5.0★
Akib Ali's Review Sourced from Google
I've had a great experience working at Invoxico Technologies – the company truly cares about its employees' well-being and success. I feel fortunate to be part of such a dynamic and forward-thinking organization.
H2FM- HIP-HOP FROM THE MOUNTAINS Review from Google
5.0★
H2FM- HIP-HOP FROM THE MOUNTAINS's Review Sourced from Google
The office culture at Invoxico Technologies is fantastic – it's a fun and dynamic place to work. The company regularly hosts team-building events and social activities, fostering a sense of camaraderie among employees
mohit chauhan Review from Google
5.0★
mohit chauhan's Review Sourced from Google
Invoxico Technologies fosters a creative and innovative environment where employees are encouraged to think outside the box. It's refreshing to work for a company that values fresh ideas and rewards initiative.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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5.0 5.0 (10)

IT Services Companies in California by City

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Why Companies Trust DesignRush

Rated 4.8 on Google and 4.7 on Trustpilot, DesignRush Agency Directory is a reliable resource for finding IT services companies in California. We owe this to our executive selection team, which follows a strict screening process when featuring agencies on the platform, assessing key performance indicators, like portfolio, client reviews, and industry reputation.

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Frequently Asked Questions

What services do IT services companies in California provide?

IT services companies in California provide technology solutions that help businesses run efficiently, stay secure, and scale operations. Their services typically include:

How do IT services companies in California help businesses improve efficiency and security?

IT services companies in California improve efficiency and security by automating routine tasks, maintaining cloud infrastructure, and ensuring fast, reliable access to business tools. For security, they set up firewalls, encryption, and multi-factor authentication to block unauthorized access.

They also monitor networks 24/7, detect vulnerabilities early, and provide regular updates and backups to prevent downtime or data loss. This allows businesses to operate smoothly and focus on growth while staying protected from cyber risks.

How much do IT services cost in California?

IT services in California typically cost $80 to $200 per user per month, depending on service scope and company size.

Basic packages cover help desk support, monitoring, and maintenance
Mid-range plans include security management, cloud services, and data backups
Higher-end packages add advanced cybersecurity, compliance support, and strategic IT consulting

Project-based work, like migrations or infrastructure upgrades, is usually billed separately at hourly rates.

What certifications should California IT support companies have?

California IT support companies should hold certifications that prove their technical skill and security standards. Common and respected ones include:

CompTIA A+ or Network+
Microsoft Certified Solutions Expert (MCSE)
Cisco Certified Network Associate (CCNA)
AWS or Google Cloud certifications
Certified Information Systems Security Professional (CISSP)
ITIL Certification

How do IT services companies in California ensure data protection and compliance with state and federal laws?

IT services companies in California ensure data protection and compliance by combining strict security measures with legal standards. They use encryption, firewalls, and access controls to secure sensitive information, along with regular backups and disaster recovery systems.

To meet regulations like CCPA, HIPAA, and GDPR, they conduct compliance audits, maintain data processing policies, and train staff on privacy rules. They also monitor systems for breaches, keep detailed logs for accountability, and update protocols as laws or threats evolve, ensuring businesses stay secure and compliant.

What kind of ongoing support do California IT support companies offer after implementation?

California IT support companies provide ongoing services to keep systems secure, up to date, and running smoothly after implementation. Support usually includes 24/7 monitoring, help desk assistance, and regular maintenance to prevent downtime.

They handle software updates, security patches, and system backups, and monitor networks for performance or security issues. Many also offer user training, hardware upgrades, and scalability planning so businesses can adapt as they grow.