Top QA Companies in California

Quality Assurance (QA) is a crucial part of ensuring that software, websites, and digital products function as intended. In California, there are numerous QA companies that have made a name for themselves by providing exceptional testing services. This list brings together the top-rated QA firms in the state, known for their attention to detail, technical expertise, and ability to detect even the smallest issues before they become bigger problems. Whether you need functional testing, performance testing, or security testing, these companies have the skills to ensure your digital products meet the highest standards. We’ve selected them based on their track record, client satisfaction, and industry expertise, so you can be confident in the services they provide.

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14 Companies

Last updated:Apr. 16, 2025

List of the Top QA Companies in California

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BugRaptors

Claimed

All Ways of Quality Always

5.0

About company

BugRaptors is a globally recognized software testing and QA company. With headquarters in India and geographical presence across the globe, the brand specializes in ensuring the reliability and qual... Read more about BugRaptors

Undisclosed

< $25/hr

200 - 499

2016

Emeryville, California

Service focuses

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Review

BugRaptors exceeded our expectations in performance testing our banking application. Their expertise with JMeter, custom frameworks, and server monitoring was invaluable. Our response time improved significantly, and we appreciate their thorough approach. Highly recommended!

Reviewer

Katherine Williams

Project Manager

5.0

RipenApps Technologies

Claimed

Ripening Ideas Into Apps

4.8

About company

RipenApps Technologies is a globally recognized mobile app development company, dedicated to transforming ideas into successful mobile apps that drive business growth. With over 7+ years of experienc... Read more about RipenApps Technologies

Undisclosed

$25 - $49/hr

50 - 199

2017

Ontario, California

Service focuses

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Review

I assigned my ELearning app development project to the Ripenapps team. They took care of everything from wireframing and UI/UX design to backend development, ensuring a seamless learning journey for users. Their expertise in mobile app development and dedication to delivering quality work made the entire process efficient and rewarding. Within a short period, I am witnessing a huge process for my Elearning app development project.

Reviewer

Mansi Aggarwal

Business Analyst

5.0

A3Logics Inc.

Claimed

Technology Sorted Out

About company

A3Logics is an IT industry leader in digital transformation whether it is creating custom mobile apps or AI-powered software that allows businesses to thrive in the digital landscape. For over two d... Read more about A3Logics Inc.

$5000 - $9999

$25 - $49/hr

200 - 499

2003

Carlsbad, California

Service focuses

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Erbis

Claimed

Expert development. Expert delivery.

About company

Erbis: Enterprise Software Development Partner for Supply Chain & Legal Tech Transform your business challenges into competitive advantages with Erbis, a premium software development company that... Read more about Erbis

$10,000 to $24,999

$25 - $49/hr

50 - 199

2012

San Francisco, California

Service focuses

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Persistent Systems

Claimed

See Beyond, Rise Above

About company

Persistent Systems is a global technology services company specializing in software product development and technology solutions. Established in 1990 and headquartered in Pune, India, the company ope... Read more about Persistent Systems

$25000 - $49999

$50 - $99/hr

10000+

1990

Santa Clara, California

Service focuses

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Jade Global

Claimed

Powering the Digital Enterprise

About company

With 2000+ professionals worldwide, 2600+ technology projects, and 350+ cloud-certified professionals, Jade Global is your ideal IT Services Partner. Jade Global is a member of the Oracle Partner, Sa... Read more about Jade Global

Undisclosed

$100 - $149/hr

1000 - 4999

2003

San Jose, California

Service focuses

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BitCot

Claimed

Web and App Development & Digital Transformation Company in USA

About company

Bitcot is a Web and Mobile App Development Company that specializes in creating innovative and visually appealing solutions to their clients. With a team of skilled professionals, we are dedicated to... Read more about BitCot

$5000 - $9999

$25 - $49/hr

200 - 499

2010

San Diego, California

Service focuses

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Azilen Technologies

Claimed

Your Software Development Partner

About company

Azilen Technologies is a Product Engineering company. We collaborate with organizations to propel their software product development journey from Idea to Implementation and to product success. Fr... Read more about Azilen Technologies

$10000 - $24999

< $25/hr

200 - 499

2009

San Francisco, California

Service focuses

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YES IT Labs

Claimed

Top rated software development company

About company

YES IT Labs is a top software development company based in USA , distinguished by our innovative solutions and exceptional service. We specialize in custom software development, mobile app creati... Read more about YES IT Labs

Less than $5000

$25 - $49/hr

50 - 199

2010

Laguna Beach, California

Service focuses

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Differenz System

Claimed

We make a difference

5.0

About company

We are IT creative agency At Differenz System we focus on providing a variety of web and app development solutions that have positively impacted our client's productivity and profitability. Our comp... Read more about Differenz System

$5000 - $9999

$25 - $49/hr

50 - 199

2013

West Hills, California

Service focuses

‌

Review

Differenz System exceeded our expectations with their exceptional web and app development expertise. Their innovative solutions, focus on productivity, and seamless collaboration greatly improved our operations. A reliable, skilled partner we highly recommend for any tech project!

Reviewer

Martin Thomas

Owner

5.0

CloudFlex

Claimed

Building systems and relationships

About company

We are a one-stop AI development agency, that is focused on crafting robust solutions from scratch to meet unique client needs. Through the synergy of our creative prowess and deep domain expertise,... Read more about CloudFlex

$10000 - $24999

$25 - $49/hr

10 - 49

2018

Los Altos, California

Service focuses

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Softjourn

Claimed

People have infinite ideas, Softjourn gives them life.

About company

Softjourn is a full-cycle consulting and software development company, with expert product teams experienced in Fintech, Media & Entertainment, with a special emphasis on Ticketing. Headquartered in... Read more about Softjourn

Undisclosed

$50 - $99/hr

200 - 499

2001

Fremont, California

Service focuses

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Zymr Inc.

Claimed

Accelerate Your Next

About company

Zymr is a software product engineering company that helps you build cloud-first and AI-native digital ecosystems to accelerate your next business goal. Our services including software development, s... Read more about Zymr Inc.

$10000 - $24999

$25 - $49/hr

200 - 499

2012

San Jose, California

Service focuses

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Deftsoft

Claimed

Programming ideas

About company

Deftsoft stands out as a visionary in the industry, constantly redefining norms and surpassing boundaries. Our comprehensive suite of cutting-edge services is meticulously tailored to empower enterpr... Read more about Deftsoft

Undisclosed

< $25/hr

200 - 499

2005

Sacramento, California

Service focuses

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How much does it cost to hire QA Companies in California?

Pricing by Location in 2025

Data current as of: Apr 12, 2025

Total number of companies

Companies undisclosed data

Companies provided data

Employees

Avg. hourly rate	200 - 499	10 - 49	50 - 199	10000+	1000 - 4999	Number of companies
< $25/hr	3					3
$25 - $49/hr	3	1	4			8
$50 - $99/hr	1			1		2
$100 - $149/hr					1	1
	7 50.00%	1 7.14%	4 28.57%	1 7.14%	1 7.14%	14

$25 - $49/hr

Avg. hourly rate

$25 - $49/hr

Summary of QA Companies in California (as of April 12, 2025)

To determine the average hourly cost of hiring QA Companies in California, we can analyze the distribution of companies across different hourly rate ranges and company sizes.

Hourly Rate Ranges:

< $25/hr: 3 companies (21.43%)
$25 - $49/hr: 8 companies (57.14%) Most Popular Rate & Average Rate
$50 - $99/hr: 2 companies (14.29%)
$100 - $149/hr: 1 company (7.14%)

Analysis

Most Popular Hourly Rate & Average Rate: The most popular hourly rate among QA Companies in California is $25 - $49/hr, with 8 companies (57.14%) offering services within this range. This indicates that a significant portion of the market is targeting a low-range pricing strategy, which may appeal to a broad spectrum of clients seeking a balance between cost and quality.

Conclusions

The QA market is diverse, with a substantial number of companies offering services at different price points to cater to a wide range of clients.
The most competitive and densely populated hourly rate range is $25 - $49/hr, making it the most accessible for many potential clients.
The hourly rates ($25 - $49/hr and above) are also common, indicating a robust market for specialized and potentially medium-quality services.

This analysis provides a comprehensive overview for businesses or individuals looking to hire QA Companies in California, enabling them to make informed decisions based on their budget and project requirements.

Choosing the Right QA in California Partner: A Full Guide

Which providers of QA services in California featured on the SuperbCompanies portal have more than 10 years of experience?

Currently, several firms listed on SuperbCompanies boast over 10 years of experience in providing high-quality QA in California services. Some of the most prominent among them are:

A3Logics Inc. (2003)
Erbis (2012)
Persistent Systems (1990)
Jade Global (2003)
BitCot (2010)

These companies combine rich experience and cutting-edge technology. For more detailed information, you can visit their profiles on the SuperbCompanies portal.

What are the Top providers of QA services in California that have 10 years of experience and offer the lowest prices?

Here are some of the top providers with over 10 years of experience, excellent reviews, and competitive pricing:

Deftsoft (2005) - < $25 per hour
Azilen Technologies (2009) - < $25 per hour

These companies are all well-regarded for their expertise in various types of QA in California and offer scalable and affordable solutions for businesses of all kinds and sizes

What are the most experienced providers of QA services in California among those listed on SuperbCompanies?

Among these providers listed on the SuperbCompanies portal, the following have the most significant experience:

Persistent Systems (1990)
Softjourn (2001)
A3Logics Inc. (2003)
Jade Global (2003)
Deftsoft (2005)

These companies are known for their extensive experience in QA in California and have established themselves as industry leaders over the years. You can find more details about these companies on the SuperbCompanies website.

Which agencies of QA in California are the best, based on customer reviews on the SuperbCompanies portal?

Here are some of the top-rated agencies, according to customer reviews left on the SuperbCompanies portal:

Differenz System (6 reviews)
RipenApps Technologies (4 reviews)
BugRaptors (1 review)

Customer feedback highlights specialized QA in California, client-oriented solutions, and the strong reputations of these companies. To read reviews and find more detailed information about the companies, you can visit their profiles on the SuperbCompanies portal.

Which QA in California service providers on the SuperbCompanies portal are the most awarded and certified?

On the SuperbCompanies portal, providers stand out for being highly awarded and certified. Among them, the following companies are particularly noteworthy:

BugRaptors (2016) - < $25 per hour - 1 review
A3Logics Inc. (2003) - $25 - $49 per hour
Erbis (2012) - $25 - $49 per hour
Persistent Systems (1990) - $50 - $99 per hour
Differenz System (2013) - $25 - $49 per hour - 6 reviews

How many providers of QA services in California are listed on the SuperbCompanies portal?

The SuperbCompanies portal lists a variety of QA in California service providers across multiple regions, and over 14 featured companies are based across countries like Canada, the United States, Ukraine, and more.

It is worth mentioning that around 0 of the QA in California firms on the SuperbCompanies portal do not provide full information. This means that they cannot be used in the in-depth analytical research conducted by the SuperbCompanies experts. As a result, their services and performance may not be as easily evaluated or scrutinized compared to companies with full, transparent data.

Which working models are the most popular among firms of QA services in California listed on the SuperbCompanies portal?

The most popular working models among QA in California firms listed on the SuperbCompanies portal are the following:

Full Time - 8 companies
On Demand - 4 companies
Part Time - 1 company

These models cater to various project needs and requirements, offering flexibility in terms of resource allocation and engagement.

Which project management methodologies are the most popular among providers of QA in California listed on the SuperbCompanies portal?

The most popular project management methodologies used by software testing providers listed on SuperbCompanies are:

Agile Methodology - 7 companies
Waterfall Methodology - 5 companies
Scrum Methodology - 5 companies
Lean Methodology - 4 companies
Kanban Methodology - 3 companies

These methodologies cater to various project types and organizational needs, offering flexibility and efficiency for different testing requirements.

Which leading vendors of QA in California have success stories that demonstrate their expertise?

On the SuperbCompanies portal, several leading QA in California experts share success stories and client experiences. These companies are recognized for their expertise in delivering quality and reliable QA in California services. Some of the top companies with impressive portfolios are:

Differenz System (6 cases)
Azilen Technologies (2 cases)
CloudFlex (1 case)
BugRaptors (1 case)

These companies have built stellar reputations by consistently delivering high-quality QA in California services and working with prominent brands across different industries. To read their success stories and client experiences, as well as to gain more insights into their achievements, visit their profiles on the SuperbCompanies portal.