Top IT Services Companies in California

4.6 avg. rating from 826 verified reviews

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

6 Companies - Rankings updated: September 09, 2026

DesignRush evaluates each agency using expert assessment and client feedback to inform your choices. Some featured agencies have paid placements.

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United States × California × Corporate Services × $25,000 - $50,000 × Clear Filters

A3Logics
Empower Your Business With Future Ready IT Solutions

A3Logics provides custom software, AI, cloud, and data engineering services to clients in healthcare, banking, and insurance, with 21+ years of experience and clients including Tesla and Meltwater. Best suited for mid-size to enterprise businesses seeking industry-specific IT solutions...

Top Services:

Mobile App Development

Software Development

Big Data Analytics

Blockchain

AI Development

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Location

Carlsbad, California

Number of Employees

250 - 499

Average Hourly Rate

$35/hr

Minimal Budget

$25,000 - $50,000

Portfolios Count

13 Projects Listed
A3Logics Services

Mobile App Development

Software Development

Big Data Analytics

Blockchain

AI Development

IoT

IT Services

Cloud Consulting

DevOps Consulting

Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
myEnPro

Will2click

CareGiver

Future Institute

Tabbi

Daylight Corp

My Finny

Playmaker

Ghost Kitchen

Hastens

Data sourced from the agency's DesignRush profile
A3Logics Reviews & Testimonials

Elizabeth Sheehan Sales Enablement Analyst at WayPath

5.0 ★

Software Development Review from Elizabeth Sheehan

Our main goal was to update our web presence to more accurately represent our proficiency in IT consulting and services. Our prior website was disorganized, had poor performance, and failed to adequately convey our expertise in customer relationship management (CRM), customer communications management (CCM), and content management systems (CMS). We required a highly functional, aesthetically pleasing, and scalable website that could captivate users, offer smooth navigation, and blend in seamlessly with our current technology stack. They have perfect attention to detail. They took care of everything, from making sure the font and color scheme matched our corporate identity to making every user interaction as efficient as possible. The outcome was a website that serves as a potent instrument for business expansion in addition to being aesthetically pleasing. They were always helpful and quick to respond when we had questions after the launch.

Adam Leeman Director at Symmetry Energy Solutions

5.0 ★

Big Data Analytics Review from Adam Leeman

A3logics main strength was their intuitive understanding of what I was looking for. They were highly communicative regarding updates and required almost no guidance or oversight. Moreover, they were extremely creative in areas I hadn't even considered, coming up with impressive solutions.

Mubarak Muaz CEO at Aceplace

5.0 ★

Software Development Review from Mubarak Muaz

A3logic provided software development based on the detailed briefing that we gave them, ensuring that every aspect aligned with our brand identity and user needs. They carefully analyzed our requirements, conducted research, and proposed design solutions that enhanced usability and engagement. A3logic was a very professional company. They managed the project well and delivered on time and within budget. They were very responsive and timely in their communication. I was impressed with how enthusiastic the A3logic team was about their work. They cared about my project and treated it as their own. They were a great team.

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4.9 4.9 (28)

4.9 4.9 (7)
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

Show more

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)
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.

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4.7 4.7 (35)
CONTUS Tech
Your Digital Growth Success Partner.

CONTUS Tech stands as a prominent global authority in digital engineering services, heralded for its transformative impact on businesses worldwide. Our forte lies in crafting cutting-edge digital products, pioneering connected vehicle experiences, and spearheading next-generation streaming services that...

Top Services:

DevOps Consulting

IT Services

Mobile App Development

IoT

Digital Services

Show more

Location

Santa Clara, California

Number of Employees

250 - 499

Average Hourly Rate

$30/hr

Minimal Budget

$25,000 - $50,000
CONTUS Tech Services

DevOps Consulting

IT Services

Mobile App Development

IoT

Digital Services

Software Development

Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Hyundai

ICICI Bank

JCB

CocoCola

Versa Networks

Data sourced from the agency's DesignRush profile
CONTUS Tech Reviews & Testimonials

bharath kumar Review from Google

1.0 ★

bharath kumar's Review Sourced from Google

Never fall for the positive feedbacks. I'm completely agree with the following comments which have low ratings. I have experienced the same kind of problem with this company. I strongly recommended to stay away from this company. If you really care about the mental health, Please stay away from this company.

Dhanraj Parthasarathy Review from Google

1.0 ★

Dhanraj Parthasarathy's Review Sourced from Google

Heads up to anyone looking at this place: they deleted a your comments if they're negative. Seriously, think twice before joining. I'm not kidding, avoid this company if you care about your mental health. Make sure you really read between the lines before you sign anything with this company. Don't fall for the positive reviews. It had given by the employees from the managements. It's all fake. It's just a really disrespectful environment. They'll keep stringing you along during your probation, saying they can't make it official until the project wraps. Then, the second it's done, they slap you with a PIP and suddenly your performance "isn't meeting expectations." They also expect you to work weekends regularly and don't give any comp-off for it. Oh, and they're doing another round of layoffs—for the second time! You'll never get recognition for your hard work, and you'll constantly feel like your job is on the line. Honestly, just do not join here. It's not worth it. And to whoever tries to delete this... well, let's just say it's pretty low to try and hide the truth about how they treated us.

Naveen Kumar. L Review from Google

1.0 ★

Naveen Kumar. L's Review Sourced from Google

Worst Place I’ve Ever Worked – Avoid at All Costs If you care about your health, run. This company thrives on exploitation — 16+ hour workdays, weekends stolen, and deadlines that destroy any work-life balance. Management has zero empathy and treats burnout like a badge of honor. Expect to be working till 3 AM regularly while your mental health crumbles. No appreciation, no boundaries, no future.

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4.0 4.0 (314)

IT Services Companies in California by City

Related Services in California

IT Services Specializations in California

Popular Services

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.

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Top IT Services Companies in California

We Have Researched the Best California IT Support Companies For You

Empower Your Business With Future Ready IT Solutions

A3Logics Services

A3Logics Reviews & Testimonials

Dedicated Teams That Build Complex Software Systems

SiliconMint Services

SiliconMint Reviews & Testimonials

Fast & Easy Technical Launch for Your Startup

Codemotion Services

Trusted by Leading Brands

InfinixSoft Services

Innovative Software Development

TopDevz Services

TopDevz Reviews & Testimonials

Your Digital Growth Success Partner.

CONTUS Tech Services

CONTUS Tech Reviews & Testimonials

IT Services Companies in California by City

Related Services in California

IT Services Specializations in California

Popular Services

Why Companies Trust DesignRush

Sources

Frequently Asked Questions

What services do IT services companies in California provide?

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

How much do IT services cost in California?

What certifications should California IT support companies have?

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

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

Latest Trends Related to IT Services

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