Best California Enterprise SEO Companies & Services

415 Companies - Rankings updated: April 03, 2026

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

United States × California ×
  • Be The Answer

    We are Digital World Institute (DWI), a performance-first SEO agency. Our mission is to turn organic visibility into qualified leads by combining traditional SEO with AI-driven optimization.  [... view Digital World Institute profile ]
    Location
    Glendale, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $1,000 - $10,000
  • The All-in-One Agency For Luxury Brands

    The All-in-One Agency For Luxury Brands

    ITJ Group is an all-in-one marketing, web development & creative studio that builds high-performance digital experiences for Jewelry & E-commerce brands. Web Dev, SEO, UX, Paid Ads, Email Marketing, Social, Photography, Videography under one roof.  [... view ITJ Group profile ]
    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Minimal Budget
    $10,000 - $25,000
  • Design. Develop. Dominate.

    Design. Develop. Dominate.

    A modern digital studio building high-performance websites, SEO systems, and growth platforms for brands that want real results not just visuals.  [... view WebVello profile ]
    Location
    Roseville, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $55/hr
    Minimal Budget
    $1,000 - $10,000
  • Own Your Occupancy

    Own Your Occupancy

    Digital Seniority exclusively supports senior living communities with hands-on digital marketing execution, including Google Ads, Meta advertising, websites, and performance reporting.  [... view Digital Seniority profile ]
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Minimal Budget
    $1,000 - $10,000
  • Top Digital Marketing Agency In USA

    Top Digital Marketing Agency In USA

    DigiTec Studio Top digital marketing agency in USA offering SEO, web design, branding, and results-driven solutions. See how we can help your business grow.  [... view DigiTec Studio profile ]
    Location
    Glendale, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000
  • Strategy + Storytelling + Design For Mission-driven Impact.

    Strategy + Storytelling + Design For Mission-driven Impact.

    GLG Studio is a Black-owned creative strategy and communications studio based in Los Angeles and Oakland. We help mission-driven organizations and public-sector partners translate complex work into clear, culturally fluent campaigns that build trust and drive action. We blend stakeholder-informed strategy  [... view GLG Studio profile ]
    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $1,000 - $10,000
  • Building the Future, Code At A Time

    Building the Future, Code At A Time

    Ambsan Digital is a full stack company specializing in high-performance web and mobile app development. We transform ideas into scalable digital products, offering end-to-end services from UI/UX design and custom web platforms to native and cross-platform mobile applications. Our expert developers focus on  [... view Ambsan Digital profile ]
    Location
    California City, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
  • NTD Digital is a data-driven digital marketing agency specializing in Generative Engine Optimization (GEO), SEO, paid media, and AI-powered marketing optimization. We help brands improve their visibility across both traditional search engines and emerging AI-powered platforms through Generative Engine  [... view NTD Digital profile ]
    Location
    Santa Clara, California
    Number of Employees
    Under 49
    Minimal Budget
    $1,000 - $10,000
  • We Help You Get New Customers

    We Help You Get New Customers

    MailPros USA is a fullservice direct mail platform offering expert direct mail marketing services, highquality printing, targeted mailing lists, EDDM (Every Door Direct Mail) solutions, and fulfillment nationwide. Trusted by thousands of businesses for precision targeting and proven ROI, MailPros USA helps  [... view MailPros USA profile ]
    Location
    Laguna Hills, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    Under $1,000
  • Webllisto is a prominent IT Consulting and Engineering firm offering clients the finest Web and Software development services for their business. Our exceptional Web services are dedicated to Enterprises, ISVs, Startups, and digital agencies.  [... view Webllisto profile ]
    Location
    San Jose, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    4 Projects Listed
  • Logo Design Lane Believe in Creating Brand Identity Through Our Brand Logos.

    Logo Design Lane Believe in Creating Brand Identity Through Our Brand Logos.

    A logo is the most important part of any brand. It provides the brand with a unique identity & separates him from the competitors. Visual or symbols are the most powerful tool in communication & Logo Design.  [... see all Logo Design Lane reviews ]
    Location
    San Francisco, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
  • Your One-Stop-Destination For Growth-Marketing.

    Your One-Stop-Destination For Growth-Marketing.

    We are Tech Bay Leaf, a leading data-driven digital marketing agency where curiosity meets creativity, & insights become sales. We specialize in providing digital specialists with flexibility and cost-effective solutions. Our presence is global and our marketing culture meets the demands of businesses as the  [... view Tech Bay Leaf profile ]
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    Under $1,000
  • Top Mobile App and Web Development Company in Canada, USA and UK

    Top Mobile App and Web Development Company in Canada, USA and UK

    We design highly polished iPhone, Android and Web Apps for startups and Enterprise clients.  [... view MobMaxime profile ]
    Location
    Sunnyvale, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $15/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    3 Projects Listed
  • A Solution for All Your Ideas

    A Solution for All Your Ideas

    We know that good dentists change lives. So, our mission is to help the greatest number of people find the quality dental care they need. We do this by providing a unique mix of products and services that connect dentists to highly motivated dental patients.  [... see all Siva Solutions Inc. reviews ]
    Location
    Cathedral City, California
    Number of Employees
    50 - 99
    Minimal Budget
    Under $1,000
    Portfolios Count
    5 Projects Listed
  • Innovate, Create, Excel.

    Innovate, Create, Excel.

    SoftGrid Computers is a prominent custom software development company that excels in blending the latest technologies with well-organized creative work. With a strong focus on understanding client needs and delivering optimal solutions, we strive to be a reliable partner that offers great value for money. Our  [... view SoftGrid Computers profile ]
    Location
    Santa Monica, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $1,000 - $10,000
  • 4 Steps to Cloud 9

    4 Steps to Cloud 9

    iCode49 Technolabs stands out as a premier provider specializing in the meticulous development of cutting-edge iOS and Android mobile applications uniquely crafted for both startups and global brands. Our expertise lies in driving innovation within the ever-evolving mobile landscape, where we leverage our  [... view ICode49 Technolabs profile ]
    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $10,000 - $25,000
  • Crafting Websites, Creating Success!

    Crafting Websites, Creating Success!

    Invoxico Technologies is an adept company in web design and development, acknowledged for its proficiency in crafting customized digital solutions. Their expert team focuses on UI/UX design, web development, CMS development, eCommerce solutions, and mobile app development, and offers a complete range of  [... view Invoxico Technologies profile ]
    Location
    La Puente, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000
  • We Build Success Stories

    We Build Success Stories

    For over 2 decades, starting in 1998, we have been serving a global clientele with web design, web development, mobile app development & digital marketing services. Our expertise spans SEO, Google Ads, Alibaba minisites & ranking optimization & the ongoing maintenance of apps and websites across more than 75  [... view Opal Infotech profile ]
    Location
    Dublin, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000
  • Transform Your Brand with Leading IT Experts.

    Transform Your Brand with Leading IT Experts.

    SystechLogic is your trusted partner for innovative marketing solutions and software development services. We combine creativity, technology, and strategy to help businesses stand out in competitive markets. From crafting engaging campaigns to developing user-friendly, high-performance software & mobile apps  [... view Systechlogic profile ]
    Location
    Ontario, California
    Number of Employees
    Under 49
    Minimal Budget
    $1,000 - $10,000
  • Imagination Meets Implementation

    Imagination Meets Implementation

    We are one stop solution for all your digital needs. We follow a structured and agile development approach with project management planner to ensure the successful delivery of every project, focusing on quality, cost-optimization, transparency, and client satisfaction.  [... view Nextwebi It Solutions Pvt Ltd profile ]
    Location
    San Francisco, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $1,000 - $10,000
  • Best SEO and Digital Marketing Company

    Best SEO and Digital Marketing Company

    Brand Height offers digital-marketing solutions and integrates WhatsApp marketing to help brands communicate directly with customers via a channel already in their hands. The agency combines targeted outreach and performance marketing to drive leads and conversions through WhatsApp.  [... view Brand Height profile ]
    Location
    San Francisco, California
    Number of Employees
    Under 49
  • Let Design, Function, and Strategy Meet!

    Let Design, Function, and Strategy Meet!

    We create websites and provide businesses with various opportunities to collect leads and make money from unexpected conversions. The custom website company is dedicated to fulfilling needs that our experts can handle. We only make the best promises when it comes to website creation.  [... see all Website Design Valley reviews ]
    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Portfolios Count
    5 Projects Listed

About The Author and Expert Reviewer

Natasa Glikman is an experienced editor and content writer with over 10 years of experience in writing, editing, and translating articles across various topics, with a strong focus on marketing and advertising. At DesignRush, Natasa currently works as an editor, where she refines and enhances B2B content to ensure accuracy, clarity, and consistency across agency profiles and industry reports.

Robin Fishley is a digital professional with over 20 years of experience in programming, website architecture, and data optimization. Twice honored as Most Innovative Employee at his previous agency, he excelled in leadership roles across SEO, research, analytics, and strategy. At Saatchi & Saatchi, where he was the Director of Search and Data, he developed a successful Big Data analysis tool and provided expert consulting for renowned clients like P&G, Toyota, and VISA. A valuable asset to DesignRush, he used his technical background to drive success for the company's digital initiatives.