Home Engineering United States California

Top Engineering Firms in California

Ratings Updated: October 27, 2026

We verify reviews and evaluate companies so you can choose with confidence. We may earn a fee for some placements. Learn how Clutch ensures trust

Brash

5.0 13 reviews

Premier Verified

$10,000+

Undisclosed

10 - 49

Carlsbad, CA

Services provided

20% Engineering

30% Product Design

20% UX/UI Design +2 services

15% IoT Development

15% Mobile App Development

Brash is an engineering consultancy specializing in technical design services for wearables. Reviews highlight their strong project management and responsiveness, with 100% of reviewers noting effective communication and engagement. Clients commend Brash for their innovative engineering solutions and successful collaboration across diverse technical domains.

See all 13 projects
Reviews mention Knowledgeable
Client feedback highlights Brash Inc.'s extensive knowledge and expertise in their field. One client emphasized their 'great knowledge level' and ability to understand requirements, while another praised their 'highly skilled and knowledgeable' team, instilling confidence through their expertise. Both reviews reflect a strong sentiment of satisfaction regarding Brash's technical capabilities and proactive communication, indicating a successful partnership and a solid fit for client projects.

UX/UI Design & Dev for Smart Baby Bottle Company

4.5 Jul 19, 2023

The team at Brash Inc. is highly skilled and knowledgeable in their field, with numerous patents and success stories from their past clients. This clearly shows their expertise in the industry. Whenever I think of the meaning of expertise, Brash Inc. comes to mind. They instill confidence in their decisions, leaving no room for uncertainty.
Read Full Review

AWS-Based Software Dev & UX/UI Design for Chip Manufacturer

5.0 May 6, 2025

The team is always asking for feedback and is open to it. They're willing to listen and understand what we need. Their knowledge level is great. They understand what we want and are a great fit for us.
Read Full Review

Read All Reviews

Was this helpful?
1 of 1 Engineering reviews are 5 stars

Unknown avg. project cost

Engineering PROJECT HIGHLIGHT

Product Engineering & Design for Organic Fruit Spread Producer
5.0 — Brash Inc. built and developed a fruit peel processing machine for an organic fruit spread producer. Read more
Read 1 Review

Was this helpful?

Industry Experience

Brash Inc. has demonstrated significant expertise across multiple industries, including manufacturing, consumer products, medical, retail, and biotechnology. Clients commend their exceptional product design, timely project management, and effective communication. Feedback highlights strengths in technical development, user-centric design, and adaptability to evolving project needs. Overall, the sentiment across industries is overwhelmingly positive, indicating that Brash Inc. is well-suited for clients seeking innovation and collaboration in technology-driven projects.
Read All Reviews

Select Industry to see insights

Manufacturing Consumer products & services Medical Sports Other Industry Healthcare Retail

Was this helpful?

More responsive than most other service providers

Brash is very responsive
They are a great candidate to start a conversation with. Send them a short message or project inquiry.
Get in Touch

Was this helpful?
View Profile Visit Website
Delve

4.9 30 reviews

Verified

$50,000+

Undisclosed

50 - 249

San Francisco, CA

Services provided

40% Engineering

30% Product Design

30% UX/UI Design

Delve is a full-service design firm specializing in user experience (UX) design and human-centered design principles. Reviews indicate a strong emphasis on effective project management and timely delivery. Clients consistently praise Delve for exceeding user expectations and providing comprehensive, end-to-end design services. Notably, 100% of reviewers expressed satisfaction with Delve's project completion and management capabilities.

See all 30 projects
Reviews mention Transparent
Delve has received positive feedback regarding its transparency throughout project management. Clients appreciated the open communication and collaborative approach, noting that they always felt informed about project status and expectations. One client highlighted the effective resolution of disagreements due to clear and honest dialogue. However, there were suggestions for improvement in maintaining transparency with third-party partners to better manage project challenges, indicating a desire for more proactive engagement in such situations.

Web Dev for Nonprofit Organization

4.5 Dec 12, 2022

Project management was very buttoned up with details provided a few times each week on what was due, what was coming, etc. We always knew where things stood and where we needed to focus our time and efforts. The communication style of both teams was open and collaborative, even in the times where there was a disagreement over direction or concepts, we knew that both parties could be 100% clear and transparent with each other and we always found a way to resolve it in a manner that worked for everyone.
Read Full Review

UI/UX Design for Autonomous Vessel Startup

5.0 Mar 14, 2022

The workflow was excellent. They were communicative, organized and timeline driven. Honestly, no. They were transparent about their process, billing and we aligned well on expectations. I was happy to work with them and would recommend them without hesitation to anyone.
Read Full Review

Read All Reviews

Was this helpful?
Average Project Cost Breakdown

$50,000 to $199,999 (15) $10,000 to $49,000 (4) $200,000 to $999,999 (4) Less than $10,000 (1)

What Clients Have Said
Clients have consistently praised Delve for providing excellent value for money, often highlighting that their pricing aligns well with budgetary expectations. One client noted, 'Pricing fit our budget' and described Delve as delivering 'good value for cost.' Another emphasized the company's ability to deliver high-quality results within set financial parameters, stating that they received 'tremendous value' for their investment. Overall, the sentiment across reviews indicates satisfaction with the cost-effectiveness and quality of services provided by Delve.
Read All Reviews

Was this helpful?
View projects from:

Boston, Massachusetts (15) New York City, New York (3) Northbrook, Illinois (1) Jacksonville, Florida (1) Manhattan, New York (1) Winston-Salem, North Carolina (1) Alameda, California (1) Los Angeles, California (1) Mountain View, California (1) Baltimore, Maryland (1) Gloucester, Massachusetts (1) Waltham, Massachusetts (1) Rowley, Massachusetts (1) Wellesley Hills, Massachusetts (1)

This provider is fluent in 1 language:

English

This provider is available in 1 time zone:

Eastern Standard Time (EST)

Was this helpful?
San Francisco, CA

2225 3rd Street
San Francisco, CA 94107
10 - 15

See All Locations (4)

Was this helpful?
View Profile Visit Website
Speck Design

4.2 7 reviews

$25,000+

$100 - $149 / hr

10 - 49

San Jose, CA

Services provided

20% Engineering

60% Product Design

20% UX/UI Design

Speck Design is an engineering design company offering comprehensive technical design services, including industrial design and engineering consulting. Reviews highlight their effective communication and high-quality process in projects like hardware development and optimization. However, feedback is mixed, with one review praising a 25% weight reduction and aligned ID direction, while another criticizes project management, communication, and accountability issues, resulting in an incomplete project.

See all 7 projects
Reviews mention Timely
Speck Design has received positive feedback regarding their timeliness in project delivery. Clients have noted that they consistently meet deadlines, with one reviewer stating that Speck Design never caused a project to slip, even under aggressive schedules. Another client emphasized effective communication and minimal delays, highlighting that very short timelines were met. Overall, the sentiment around Speck Design's timeliness is overwhelmingly positive, showcasing their reliability and commitment to meeting client expectations.

UX/UI Redesign for AI Sales Outreach Company

5.0 Jun 22, 2026

Speck Design's project management was good, and they delivered on time. We communicated via in-person meetings, virtual meetings, email, and messages.
Read Full Review

Engineering for AI & Machine Learning Company

4.5 Sep 11, 2026

Communication was effective and timely. Very short timelines were met with minimal slip. Overall responsivness was very high and concerns from the team were resolved quickly.
Read Full Review

Read All Reviews

Was this helpful?
1 of 3 reviews are 5 stars

1 new review for Engineering services

$10,000 – $49,000 avg. project cost

Reviewed 3 times in the past 6 months
Speck Design has received positive feedback in the last six months, highlighting their effective project management and strong collaborative approach. Clients praised their timely delivery and high-quality design outputs, particularly in medical device engineering and UI/UX development. Specific instances include a successful design for a medical device that resonated well with internal teams and a dashboard redesign that resulted in increased user engagement. Overall, clients expressed satisfaction with Speck Design's responsiveness and ability to meet project objectives.
Read 3 Recent Reviews

Was this helpful?

0 of 2 Engineering reviews are 5 stars

1 new review for Engineering in past 6 months

$50,000 – $199,999 avg. project cost

Engineering PROJECT HIGHLIGHT

Engineering for AI & Machine Learning Company
4.5 — Speck Design provided industrial design services for an AI and machine learning company. The team created an industrial design for the primary hardware enclosure and conducted a material selection Read more
Read 2 Reviews

Was this helpful?

View projects from:

San Francisco, California (2) Milwaukee, Wisconsin (1) Palo Alto, California (1) Sunnyvale, California (1) Redmond, Washington (1) Newark, California (1)

Was this helpful?
View Profile

Share your project goals, and we’ll connect you with verified partners who fit your budget and timeline.

Get My Matches

Obsium

5.0 1 review

$1,000+

$25 - $49 / hr

2 - 9

Pleasanton, CA

Services provided

20% Engineering

40% Cloud Consulting & SI

40% DevOps Managed Services

Obsium is a specialized DevOps and cloud observability company focused on supporting distributed systems. They consistently receive positive feedback, with 100% of reviewers praising their proactive communication, technical expertise in Kubernetes, and ability to optimize cloud infrastructure costs. Clients appreciate their timely delivery and value for cost, making them a preferred partner for startups and tech teams.

See all 1 projects

Industry Experience

Obsium has received positive feedback primarily from the Information Technology sector, particularly in Cloud Observability and DevOps support for distributed systems. Clients commend their proactive communication, technical expertise in Kubernetes, and ability to deliver measurable improvements in system reliability and operational cost optimization. Their strong value proposition and timely project management make them an effective partner for startups and tech teams seeking to enhance their engineering capabilities.
Read All Reviews

Was this helpful?

Average Project Cost Breakdown

Less than $10,000 (1)

What Clients Have Said
Clients generally perceive Obsium as offering good value for money, with specific feedback highlighting that their pricing fits within budget constraints while still delivering high-quality services. One client noted the company's proactive communication and technical expertise as significant advantages, stating that their engagement led to improved system reliability and cost optimization. Overall sentiment indicates satisfaction with the cost-effectiveness of Obsium's services, making them a recommended partner for startups and growing tech teams.
Read All Reviews

Was this helpful?

View Profile
Exadel

4.8 17 reviews

Undisclosed

Undisclosed

1,000 - 9,999

Walnut Creek, CA

Services provided

10% Engineering

10% AI Development

10% IT Managed Services +14 services

5% AI Consulting

5% BI & Big Data Consulting & SI

5% Business Consulting

5% Cloud Consulting & SI

5% Custom Software Development

5% Digital Engineering

5% Digital Strategy

5% Financial Consulting

5% Generative AI

5% IT Staff Augmentation

5% IT Strategy Consulting

5% Mobile App Development

5% Product Design

5% UX/UI Design

Exadel is a digital services company specializing in software development, providing services like backend development, mobile application development, and web development. Feedback highlights their professional and knowledgeable team, with 90% of reviews noting effective communication and strong technical expertise. Clients commend Exadel's agility, collaboration, and responsiveness, with no significant areas for improvement noted in 80% of reviews.

See all 17 projects
Reviews mention Understands their clients' needs
Clients consistently praise Exadel for their deep understanding of business needs and effective collaboration. One client highlighted their 'phenomenal client-first approach,' emphasizing the team's flexibility during challenging times. Another noted that Exadel's engineers seamlessly integrated into their company culture, demonstrating a strong alignment with client expectations. Overall, feedback reflects a positive sentiment, showcasing Exadel's commitment to grasping client requirements and fostering productive partnerships.

Mobile App Development for Cleaning Service Marketplace

5.0 Jul 30, 2020

We particularly appreciate that Codete takes the effort to understand their client’s perspective. Our collaboration took place in a difficult time, in which understanding and certain flexibility were especially important. Their client-first approach is phenomenal. We’re satisfied with their technological expertise, agility, and openness.
Read Full Review

Enterprise App Dev for German Middleware Provider

5.0 Jul 9, 2020

Broad range of knowledge. They have an excellent understanding of customers' needs. The direct communication between our head of development and Codete´s senior developers worked fine for us. Tools were Trello, Skype, our own ticketing system.
Read Full Review

Engineering Support for Energy & Hardware Supplier

4.0 Jun 23, 2020

Everyone I’ve met from Codete has been encouraging, open, and caring about our business relationship. They understand what we’re looking for as a company, and they’re always asking if they can do more or get better. Their team is open to our suggestions and wishes.
Read Full Review

Read All Reviews

Was this helpful?
Industry Experience

Exadel has established a strong reputation across various industries, including IT Services, Software, Automotive, Business Services, Education, and Hospitality. Clients commend their expertise in software development, project management, and cultural alignment with teams. In IT Services, feedback highlights their responsiveness and quality of work. In Software, clients appreciate their ability to augment teams effectively. Overall sentiment is positive, indicating Exadel is well-suited for projects requiring technical acumen, agility, and strong collaboration.
Read All Reviews

Select Industry to see insights

IT Services Software Business services Automotive Hospitality & leisure Design Advertising & marketing Energy & natural resources Education

Was this helpful?

Average Project Cost Breakdown

$50,000 to $199,999 (5) $200,000 to $999,999 (4) $10,000 to $49,000 (3) Less than $10,000 (2)

What Clients Have Said
Client reviews of Exadel reflect a generally positive sentiment regarding their cost and value for money. Many clients noted that the company provides high-quality services at competitive rates, with one client mentioning they did not find Exadel's pricing to be excessive compared to others in the market. Another client highlighted the effectiveness of their developers and their ability to deliver projects efficiently, reinforcing the perception of good value. Overall, clients feel satisfied with their investment, often noting the high level of expertise and dedication from Exadel's team.
Read All Reviews

Was this helpful?

View projects from:

Germany (8) United States (3) Poland (2) Croatia (1) Norway (1) Switzerland (1) England (1)

Was this helpful?
View Profile
Unbox Product Design

Not yet reviewed

$5,000+

$50 - $99 / hr

2 - 9

San Francisco, CA

Services provided

20% Engineering

40% Product Design

10% Branding +3 services

10% Graphic Design

10% Packaging Design

10% UX/UI Design

Small Product Design company Unbox Product Design, is headquartered in San Francisco, California. Their services include Product Design and Engineering.
Read more

View Profile
Thompson Pipe Group

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

Rialto, CA

Services provided

50% Engineering

50% Commercial Property Management

Thompson Pipe Group is a Commercial Property Management and Engineering company established in 1972. The midsize team focuses on Commercial Property Management and Engineering.
Read more

Rialto, CA

3011 North Laurel Avenue
Rialto, CA 92377
21 - 30

972-262-3600

See All Locations (2)

Was this helpful?

View Profile
InstallArtificial

Not yet reviewed

$1,000+

$100 - $149 / hr

2 - 9

Torrance, CA

Services provided

15% Engineering

85% Commercial Development

Established in 2017, InstallArtificial is a Commercial Development company. Their team offers Commercial Development and Engineering.
Read more

View Profile
EZ Plans Architects

Not yet reviewed

$5,000+

$100 - $149 / hr

2 - 9

Los Angeles, CA

Services provided

25% Engineering

50% Architectural Design

25% Interior Design

Launched in 2008, EZ Plans Architects, a small Architectural Design company, is headquartered in Los Angeles, California. Their team focuses on Architectural Design and Interior Design.
Read more

View Profile
Novak Remodeling

Not yet reviewed

$10,000+

$25 - $49 / hr

50 - 249

Calabasas, CA

Services provided

30% Engineering

50% Business Consulting

20% Advertising

Launched in 2007, Novak Remodeling is a Business Consulting company. The firm specializes in Business Consulting and Engineering.
Read more

View Profile
911EDA PCB Design Services

5.0 1 review

Undisclosed

$100 - $149 / hr

10 - 49

Carlsbad, CA

Services provided

50% Engineering

50% Contract Manufacturing

911EDA PCB Design Services offers specialized engineering solutions in PCB design, including high-density interconnect layouts, manufacturability optimization, Bluetooth integration, and multi-layer signal integrity analysis. Reviews highlight their proficient project management, timely delivery, and responsiveness, leading to successful outcomes such as reduced assembly costs and enhanced signal integrity.

See all 1 projects

View Profile
Luhdorff & Scalmanini

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Woodland, CA

Services provided

40% Engineering

60% Business Consulting

Luhdorff & Scalmanini is a small Woodland, California-based Business Consulting company. The team specializes in Business Consulting and Engineering.
Read more

View Profile
BK ELECTRIC SERVICES INC

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Los Angeles, CA

Services provided

80% Engineering

20% Lighting Design

Established in 2002, BK ELECTRIC SERVICES INC is an Engineering company. The firm focuses on Engineering and Lighting Design.
Read more

View Profile
EAG Studio

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

San Francisco, CA

Services provided

25% Engineering

25% Architectural Design

25% Commercial Development +1 service

25% Interior Design

EAG Studio is an Architectural Design company. They focus on Architectural Design and Interior Design and were founded in 2000.
Read more

View Profile
Alpha Structural, Inc.

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Los Angeles, CA

Services provided

50% Engineering

25% Commercial Development

25% Commercial Property Management

Launched in 1993, Alpha Structural, Inc. Is a small Engineering company. Their team focuses on Engineering and Commercial Property Management.
Read more

View Profile
A Custom Electric

Not yet reviewed

$100,000+

$100 - $149 / hr

2 - 9

Los Angeles, CA

Services provided

100% Engineering

Established in 1995, A Custom Electric, a small Engineering company, is in Los Angeles, California. Their services include Engineering.
Read more

View Profile
Additive Plus 3D Printing Solutions

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Gardena, CA

Services provided

25% Engineering

50% Contract Manufacturing

25% Product Design

Founded in 2016, Additive Plus 3D Printing Solutions is a Contract Manufacturing company. The team offers Contract Manufacturing and Product Design.
Read more

View Profile
Amrep Inspect

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

San Diego, CA

Services provided

50% Engineering

50% Business Consulting

Amrep Inspect is a Business Consulting and Engineering company. They were established in 1986 and focus on Business Consulting and Engineering.
Read more

View Profile
Oasis Luxury Smart Homes

Not yet reviewed

$10,000+

$150 - $199 / hr

10 - 49

Anaheim, CA

Services provided

25% Engineering

25% Building Security Services

25% Interior Design +1 service

25% Lighting Design

Oasis Luxury Smart Homes is an Interior Design company. Their team is in Anaheim, California and Anaheim, California and specializes in Interior Design and Lighting Design.
Read more

View Profile
Hatch Duo

Not yet reviewed

$5,000+

$200 - $300 / hr

2 - 9

San Jose, CA

Services provided

25% Engineering

40% Product Design

15% UX/UI Design +3 services

10% Packaging Design

5% Graphic Design

5% Manufacturing Consulting

Hatch Duo is a small San Jose, California-based Product Design company. Their services include Product Design and Engineering.
Read more

View Profile
Tangent Design and Engineering

Not yet reviewed

$5,000+

$100 - $149 / hr

10 - 49

Rocklin, CA

Services provided

50% Engineering

50% Architectural Design

Launched in 2018, Tangent Design and Engineering is an Architectural Design and Engineering company. The team focuses on Architectural Design and Engineering and is in Rocklin, California.
Read more

View Profile
Tandem

Not yet reviewed

$10,000+

$100 - $149 / hr

10 - 49

Santa Monica, CA

Services provided

25% Engineering

65% Product Design

10% Product Marketing

Tandem is a Product Design company founded in 2009. The small team specializes in Product Design and Engineering.
Read more

View Profile
Cali Coast Electric

Not yet reviewed

Undisclosed

Undisclosed

250 - 999

Menifee, CA

Services provided

50% Engineering

50% Commercial Property Management

Established in 2020, Cali Coast Electric is a Commercial Property Management and Engineering company. Their services include Commercial Property Management and Engineering.
Read more

View Profile
Lewis Bass International Engineering Services

Not yet reviewed

$1,000+

$200 - $300 / hr

10 - 49

Milpitas, CA

Services provided

100% Engineering

Lewis Bass International Engineering Services is an Engineering company headquartered in Milpitas, California. Established in 2009, the team focuses on Engineering.
Read more

View Profile
PCB Trace Technologies

Not yet reviewed

Undisclosed

Undisclosed

250 - 999

Milpitas, CA

Services provided

30% Engineering

70% Contract Manufacturing

PCB Trace Technologies is a Contract Manufacturing company. They were launched in 1997, and their services include Contract Manufacturing and Engineering.
Read more

View Profile
ASAP NSN Parts

Not yet reviewed

$1,000+

$25 - $49 / hr

250 - 999

Anaheim, CA

Services provided

35% Engineering

35% Sales Outsourcing

15% Air Freight +1 service

15% Business Consulting

ASAP NSN Parts is a Sales Outsourcing company located in Anaheim, California. They provide Sales Outsourcing and Engineering.
Read more

View Profile
Expertise Engineering

Not yet reviewed

Undisclosed

$100 - $149 / hr

10 - 49

San Diego, CA

Services provided

45% Engineering

40% Product Design

5% Business Consulting +2 services

5% IoT Development

5% Manufacturing Consulting

Expertise Engineering is an Engineering company launched in 1995. The team provides Engineering and Product Design and is headquartered in San Diego, California.
Read more

View Profile
Advanced Engineering Services

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

San Jose, CA

Services provided

60% Engineering

30% Product Design

10% Manufacturing Consulting

Advanced Engineering Services is an Engineering company. They are headquartered in San Jose, California. Their team offers Engineering and Product Design.
Read more

View Profile
Construction Estimating Services

Not yet reviewed

$1,000+

$50 - $99 / hr

50 - 249

San Diego, CA

Services provided

20% Engineering

80% Commercial Development

Commercial Development company Construction Estimating Services offers Commercial Development and Engineering. They were founded in 2018.
Read more

View Profile
Electrical Estimators LLC

Not yet reviewed

Undisclosed

$25 - $49 / hr

10 - 49

Los Angeles, CA

Services provided

40% Engineering

40% Commercial Property Management

20% Commercial Printing

Founded in 1999, Electrical Estimators LLC is a Commercial Property Management company. The firm specializes in Commercial Property Management and Engineering, and is small.
Read more

View Profile
1st Estimator LLC

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Sacramento, CA

Services provided

25% Engineering

50% Commercial Development

25% Business Consulting

Located in Sacramento, California, 1st Estimator LLC is a Commercial Development company. The team focuses on Commercial Development and Business Consulting.
Read more

View Profile
Truly USA Inc.

Not yet reviewed

$10,000+

$50 - $99 / hr

2 - 9

Alhambra, CA

Services provided

30% Engineering

35% Contract Manufacturing

35% Manufacturing Consulting

Contract Manufacturing company Truly USA Inc. Focuses on Contract Manufacturing and Manufacturing Consulting. They are headquartered in Alhambra, California.
Read more

View Profile
Stacked NSN

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

Anaheim, CA

Services provided

25% Engineering

25% Logistics & Supply Chain Consulting

25% Manufacturing Consulting +1 service

25% Procurement Support

Headquartered in Anaheim, California, Stacked NSN is an Engineering company. Founded in 2009, the team provides Engineering and Manufacturing Consulting.
Read more

View Profile
Current Energy LLC

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Los Angeles, CA

Services provided

100% Engineering

Founded in 2016, Current Energy LLC is an Engineering company. Their team specializes in Engineering.
Read more

View Profile
Professional As-Built Services by Alterpex

Not yet reviewed

$1,000+

$50 - $99 / hr

2 - 9

Los Angeles, CA

Services provided

50% Engineering

50% Architectural Design

Professional As-Built Services by Alterpex is an Architectural Design and Engineering company founded in 2020. Their services include Architectural Design and Engineering.
Read more

View Profile
SN&N Electronics, Inc.

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

San Jose, CA

Services provided

25% Engineering

35% Product Design

20% Contract Manufacturing +1 service

20% Custom Software Development

SN&N Electronics, Inc. Is a Product Design company. Their small team is headquartered in San Jose, California. Their services include Product Design and Engineering.
Read more

View Profile
TechFlex Development

Not yet reviewed

$25,000+

$50 - $99 / hr

50 - 249

Newport Beach, CA

Services provided

10% Engineering

20% Mobile App Development

20% Web Development +5 services

10% AR/VR Development

10% Application Testing

10% Custom Software Development

10% Product Design

10% UX/UI Design

TechFlex Development, a midsize web development firm, is located in Newport Beach, California. The team provides Web Development and Mobile App Development.
Read more

View Profile
Adept Electrical Solution

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

Santa Clara, CA

Services provided

100% Engineering

Adept Electrical Solution is a midsize Engineering company established in 2010. Their team offers Engineering.
Read more

View Profile
Darco Construction

Not yet reviewed

$250,000+

$300+ / hr

10 - 49

San Jose, CA

Services provided

25% Engineering

25% Architectural Design

25% Commercial Development +1 service

25% Interior Design

Darco Construction is an Architectural Design company based in San Jose, California. The team specializes in Architectural Design and Interior Design.
Read more

View Profile
Aldybuilders

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

San Jose, CA

Services provided

25% Engineering

25% Architectural Design

25% Commercial Development +1 service

25% Interior Design

Aldybuilders is an Architectural Design company. The team provides Architectural Design and Interior Design and is located in San Jose, California and San Jose, California.
Read more

View Profile
National Stock Number Purchasing

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Anaheim, CA

Services provided

30% Engineering

70% Contract Manufacturing

National Stock Number Purchasing is a Contract Manufacturing company headquartered in Anaheim, California. Their services include Contract Manufacturing and Engineering.
Read more

View Profile
A To Z Pro General contractor

Not yet reviewed

$1,000+

$25 - $49 / hr

10 - 49

Los Angeles, CA

Services provided

20% Engineering

60% Commercial Development

20% Architectural Design

A To Z Pro General contractor is a small Commercial Development company launched in 2016. Their services include Commercial Development and Architectural Design.
Read more

View Profile
Build Strong Construction & Remodeling

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Walnut Creek, CA

Services provided

20% Engineering

60% Interior Design

20% Out of Home Design

Build Strong Construction & Remodeling, an Interior Design company, was established in 2010. The team focuses on Interior Design and Engineering and is based in Walnut Creek, California.
Read more

View Profile
Service Robot Co.

Not yet reviewed

$5,000+

$150 - $199 / hr

2 - 9

San Diego, CA

Services provided

40% Engineering

60% Robotics Process Automation

Small Robotics Process Automation company Service Robot Co., is located in San Diego, California. The team provides Robotics Process Automation and Engineering.
Read more

View Profile
Nextdev

Not yet reviewed

$10,000+

Undisclosed

2 - 9

San Francisco, CA

Services provided

10% Engineering

30% Custom Software Development

30% Recruiting +2 services

20% Employer of Record (EOR) Services

10% Recruitment Process Outsourcing

Established in 2025, Nextdev is a custom software development company. The agency provides Custom Software Development and Recruiting.
Read more

View Profile
Copper Crest Electric

Not yet reviewed

$1,000+

$25 - $49 / hr

50 - 249

Bonsall, CA

Services provided

100% Engineering

Founded in 2000, Copper Crest Electric, a midsize Engineering company, is in Bonsall, California. Their services include Engineering.
Read more

View Profile
Engineer 2GO

Not yet reviewed

$1,000+

$25 - $49 / hr

10 - 49

Los Angeles, CA

Services provided

25% Engineering

25% Architectural Design

25% Product Design +1 service

25% Web Design

Engineer 2GO is a Los Angeles, California-based web design company. Their services include Web Design and Architectural Design.
Read more

View Profile
91 Electric Inc

Not yet reviewed

Undisclosed

Undisclosed

250 - 999

San Jose, CA

Services provided

50% Engineering

50% Commercial Property Management

Commercial Property Management and Engineering company 91 Electric Inc is in San Jose, California. They specialize in Commercial Property Management and Engineering.
Read more

View Profile
insource Global

Not yet reviewed

$1,000+

$25 - $49 / hr

10 - 49

San Jose, CA

Services provided

40% Engineering

20% HR Consulting

20% HR Outsourcing +1 service

20% Manufacturing Consulting

Engineering company insource Global offers Engineering and HR Outsourcing. They were established in 2021.
Read more

View Profile
Prophet Town LLC

Not yet reviewed

Undisclosed

$50 - $99 / hr

10 - 49

Oakland, CA

Services provided

25% Engineering

50% Custom Software Development

25% Computer Engineering

Prophet Town LLC is a custom software development firm established in 2013. The agency offers Custom Software Development and Engineering, and is small.
Read more

View Profile

Tell us what you need — we’ll match you with top agencies and their real-time quotes in minutes.

Get My Quotes

Why Trust Clutch

At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences.

Every review on Clutch undergoes a rigorous, human-led verification process to make sure it’s valid. Our team of specialists confirms the identity of each reviewer, ensures the project is legitimate, and only publishes reviews that meet our strict criteria.

Verification doesn’t stop at the point of publication. Our Trust & Safety team routinely audits older reviews against our guidelines. When reviews fall short of our standards, we remove them.

We evaluate service providers using a structured methodology that combines:

In-depth client interviews and ratings
Comprehensive project details
Market presence
Portfolio examples and industry recognition

This data powers tools like the Leaders Matrix, which helps you compare agencies directly. Our research team curates rankings by weighing verified reviews most heavily, so the most trusted and experienced providers rise to the top.

Using this unique combination of verified client feedback and provider-supplied insights, Clutch distills the most important details into clear, digestible summaries so you have everything you need to make confident, informed decisions quickly.

We take fraud seriously. Providers who violate our guidelines may face lower rankings, restricted visibility, or removal from the platform altogether.

Clutch’s commitment to transparency is ongoing. We’re constantly refining our systems to protect the integrity of reviews and support you in finding the right agency.

Top Engineering Firms in California

List of the Top California Engineering Services

Reviews mention Knowledgeable

UX/UI Design & Dev for Smart Baby Bottle Company

AWS-Based Software Dev & UX/UI Design for Chip Manufacturer

Product Engineering & Design for Organic Fruit Spread Producer

Industry Experience

Select Industry to see insights

Brash is very responsive

Reviews mention Transparent

Web Dev for Nonprofit Organization

UI/UX Design for Autonomous Vessel Startup

Average Project Cost Breakdown

What Clients Have Said

Reviews mention Timely

UX/UI Redesign for AI Sales Outreach Company

Engineering for AI & Machine Learning Company

Reviewed 3 times in the past 6 months

Engineering for AI & Machine Learning Company

Industry Experience

Average Project Cost Breakdown

What Clients Have Said

Reviews mention Understands their clients' needs

Mobile App Development for Cleaning Service Marketplace

Enterprise App Dev for German Middleware Provider

Engineering Support for Energy & Hardware Supplier

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

Tell us what you need — we’ll match you with top agencies and their real-time quotes in minutes.

Why Trust Clutch

List of the Top 3 California Engineering Services