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

8 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 × Consumer Goods × $25,000 - $50,000 ×Clear Filters

SiliconMint
Dedicated Teams That Build Complex Software Systems
SiliconMint designs, develops, and supports mission-critical software systems. Based in San Francisco, SiliconMint has offices in New York and Europe to serve clients across the globe...
Top Services:
Software Development
Mobile App Development
IoT
AI Development
Cybersecurity
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Location
San Francisco, California
Number of Employees
50 - 99
Average Hourly Rate
$55/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
7 Projects Listed
SiliconMint Services
Software Development
Mobile App Development
IoT
AI Development
Cybersecurity
Blockchain
VR/AR
Big Data Analytics
IT Services
Cloud Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Verizon
Yahoo Japan
NASDAQ
NYSE
Goldman Sachs
Barclays
BCG
Wargaming,net
AA
orange
Data sourced from the agency's DesignRush profile
SiliconMint Reviews & Testimonials
Leon Hounshell CTO, Verizon
5.0★
Software Development Review from Leon Hounshell
Using SiliconMint’s AI engine and their engineering team was a great decision for us. They built the core foundation of our ThingSpace IoT platform on time and within budget, helping us serve millions of customers across the country. I would highly recommend the SiliconMint team for their drive and dedication to the art of software architecture and development.
Leonid Zhukov Partner and Associate Director at Boston Consulting Group (BCG)
5.0★
Software Development Review from Leonid Zhukov
I’m always impressed by the technical depth & breadth of SiliconMint’s engineering team and the passion they bring to our projects. We’ve worked with them on distributed systems, data science projects, and a predictive maintenance system for the oil and gas sector. Every time, they blew me away with their experience, passion, energy, and the overall dedication for how they approach software engineering and delivery.
Steve Grice Head of Technology Global Transaction Services at Royal Bank of Scotland
5.0★
Cybersecurity Review from Steve Grice
SiliconMint built a real-time fraud detection system for us in a record period of time, with precision and recall that rivals the best in the industry. I was pleasantly impressed by their passion, dedication, and attention to detail in how they approached software development, driving excellence and speed within our organisation.
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4.8 4.8 (8)
5.0 5.0 (1)
Dinarys
Certified E-Commerce Development Company
Certified E-Commerce Development Company...
Top Services:
eCommerce Development
Web Development
IT Services
Web Design
Mobile App Development
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Location
San Francisco, California
Number of Employees
50 - 99
Average Hourly Rate
$40/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
16 Projects Listed
Dinarys Services
eCommerce Development
Web Development
IT Services
Web Design
Mobile App Development
Staff Augmentation
Digital Strategy
Digital Services
Software Development
IoT
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Aroma Kava
LastBid
Budu Sushi
Magento 2 Migration
Rite Space
Bookbreakrs
Can
Vivat
Udifo
ServisBook
Data sourced from the agency's DesignRush profile
Dinarys Reviews & Testimonials
André Schörnig Marketing-Manager at myfelt GMBH
5.0★
eCommerce Development Review from André Schörnig
We have been working with Dinarys on our Shopify store for quite some time, and the experience has been great. From the very beginning, communication was clear, efficient, and reliable. The Dinarys team consistently delivered detailed proposals, stuck to agreed timelines, and offered well-structured solutions tailored to our needs. Their technical expertise is impressive, but what really sets them apart is their proactive attitude and genuine commitment to our project. Whenever we had questions or changes, they responded quickly and constructively. Its a true pleasure to work with a partner who feels like an extension of our own team. Highly recommended!
Nissrine Kohen Sr. Backend Shopware Developers at H1 Webdevelopment
4.5★
Web Development Review from Nissrine Kohen
Weve been working with Dinarys for quite some time now, mainly collaborating on Magento and Shopware development projects. Their developers consistently show solid technical expertise and a good understanding of our expectations and workflow.Communication is generally smooth, and response times are quick. Whenever issues arise, the team is open to feedback and acts quickly to improve. Over time, weve seen a positive evolution in their proactiveness and alignment with our teams way of working.They are flexible and collaborative, and its clear that they genuinely aim to build long-term partnerships. For the quality delivered, we feel the pricing is fair and transparent.All in all, weve been satisfied with our cooperation and would recommend Dinarys as a development partner, especially for companies looking for experienced backend developers in Magento and Shopware.
Andrew White Review from Google
5.0★
Andrew White's Review Sourced from Google
I'm wasn't in the German office, but i had experience of communication with this company! I can say that it leaves the warmest feelings in the my heart! Guys you are the best!
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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4.3 4.3 (2)
4.9 4.9 (8)
MobiDev
Promising the exposure you deserve!
We dont just develop applications; we build lasting partnerships that evolve software to keep our clients competitive and innovative. Since 2009, MobiDev has helped over 400 businesses in the US, Canada, Europe, and Israel build, modernize, and scale their products for todays dynamic market...
Top Services:
Software Development
Mobile App Development
Web Development
Web Design
VR/AR
Show more
Location
Sacramento, California
Number of Employees
250 - 499
Average Hourly Rate
$45/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
14 Projects Listed
MobiDev Services
Software Development
Mobile App Development
Web Development
Web Design
VR/AR
UI/UX Design
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
SMS Group
Secure Group
ComCash
SmartTab
JustEnergy
MediaLogix
GrowthHackers
eBooks.com
Pitapat
Qualaroo
Data sourced from the agency's DesignRush profile
MobiDev Reviews & Testimonials
Raymond Ferrara Review from Google
5.0★
Raymond Ferrara's Review Sourced from Google
I have retained Mobidev on three different projects over a period of four years. Mobidev was and is an excellent technical partner in all respects.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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5.0 5.0 (2)

Codemotion
Fast & Easy Technical Launch for Your Startup
We are a reliable team to develop your idea within the deadline and budget. We share your business value, that's why we are really keen on launching your Proof of Concept ASAP, so you get funded and come to us again for further development...
Top Services:
Software Development
IT Services
Blockchain
Location
Redwood City, California
Number of Employees
50 - 99
Average Hourly Rate
$30/hr
Minimal Budget
$25,000 - $50,000
Codemotion Services
Software Development
IT Services
Blockchain
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Trastra
Zero1
Fastvan
Invotra
Cloudwith.me
Linkry Events
RunBuggy
Xpolog
Prospectlinked
Tactoom
Data sourced from the agency's DesignRush profile
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InfinixSoft
Trusted by Leading Brands
We work with startups and enterprise clients to create amazing mobile apps that users love, across iPhone, iPad, Android and the Web...
Top Services:
Mobile App Development
Web Design
Web Development
UI/UX Design
IoT
Show more
Location
Los Angeles, California
Number of Employees
Under 49
Average Hourly Rate
$50/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
2 Projects Listed
InfinixSoft Services
Mobile App Development
Web Design
Web Development
UI/UX Design
IoT
Software Development
Blockchain
IT Services
Product Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Udely.com
bubblesu.com
pezo.land
Data sourced from the agency's DesignRush profile
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TopDevz
Innovative Software Development
TopDevz is an innovative software development and technology delivery partner that brings your ideas and visions to life quickly and cost-effectively by giving you direct access to elite software development experts located throughout the United States and Canada who are rated at the top 1% of their skill...
Top Services:
Software Development
Mobile App Development
IT Services
Product Design
Show more
Location
Sacramento, California
Number of Employees
100 - 249
Average Hourly Rate
$145/hr
Minimal Budget
$25,000 - $50,000
TopDevz Services
Software Development
Mobile App Development
IT Services
Product Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Under Armour
Expedia
KPA
Kraft
Data sourced from the agency's DesignRush profile
TopDevz Reviews & Testimonials
Peter Burns Review from Google
5.0★
Peter Burns's Review Sourced from Google
It's my first time working with Topdevz and so far I am impressed. They presented me with 3 resources in less than 10 days, my team successfully interviewed them and they started on our project a mere 18 days after I first contacted them on their website. I can only hope their work will be as good as their staffing is efficient.
Maryrose Rhone Review from Google
5.0★
Maryrose Rhone's Review Sourced from Google
You'll meet some smart, professional and dedicated people at TopDevz. Their developers are really good at integrating an existing team and help lead complex projects. Their pricing is quite competitive for US resources and their services are well worth the investment.
Bruce Schaaf Review from Google
5.0★
Bruce Schaaf's Review Sourced from Google
I've worked as a contractor for several firms over the years. TopDevz really stands out above the others. They stay deeply involved throughout the project, maintaining regular communication with both client and contractor. This level of engagement really changes the nature of the project, making it a team-oriented approach rather than a simple contractor placement. This helps the project keep on track and insures that the contractor will keep busy. The people at TopDevz are all very friendly and helpful and I've been very happy working there.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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4.7 4.7 (35)

CIO Professional Services LLC
Align your Business and IT, Faster.
CIO Professional Services LLC comprises a team of seasoned executives with expertise in CIO, CTO, and CSO roles, complemented by consulting partners from the Big 4. Our focus extends beyond strategy development; we specialize in guiding the execution of initiatives to ensure the delivery of tangible results...
Top Services:
Business Consulting
Cybersecurity
IT Services
Cloud Consulting
Show more
Location
Palo Alto, California
Number of Employees
Under 49
Average Hourly Rate
$300/hr
Minimal Budget
$25,000 - $50,000
CIO Professional Services LLC Services
Business Consulting
Cybersecurity
IT Services
Cloud Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Salesforce
Five Below
Recology
Rambus
Intermedia
SI-BONE
SAP/Ariba
Gauge Capital
Gap
Driscoll's
Data sourced from the agency's DesignRush profile
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Facet Interactive
Results Driven Strategies
Facet Interactive is the go-to digital strategy agency. Our data-driven insight helps clients focus on higher-yield projects while we ensure strong returns through integrated marketing campaigns. We can step in as your product owner or CMO to provide direction when it comes to making informed product and...
Top Services:
Web Development
AI Development
Software Development
IT Services
CRM Consulting
Show more
Location
El Segundo, California
Number of Employees
Under 49
Average Hourly Rate
$199/hr
Minimal Budget
$25,000 - $50,000
Facet Interactive Services
Web Development
AI Development
Software Development
IT Services
CRM Consulting
Managed Services
Big Data Analytics
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Amber Road
ROA
Neuroedge
drupalconnect
Data sourced from the agency's DesignRush profile
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5.0 5.0 (1)

IT Services Companies in California by City

Related Services in California

IT Services Specializations in California

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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.

Learn more about DesignRush Agency Ranking Methodology.

Sources

DesignRush sustains a directory of over 40,000 agencies categorized by service category, location, expertise, and reviews. We build our database in two ways:

Our dedicated team of agency experts actively searches the web for top-performing companies. We then pull information from their websites, online presence, and client testimonials to verify their status and qualifications prior to listing.
The agencies listed get notified of their profiles on the website and they can choose to claim it or not, which suggests their availability for more collaborations.

Agencies can also reach out to DesignRush and must go through the verification process prior to being listed.

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.