Best California Startups SEO Companies

412 Companies-Rankings updated: September 01, 2026

DesignRush vets all agencies based on professional qualifications and verified customer feedback to help you choose confidently. Some featured agencies maintain paid sponsorships.

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  • TekRevol

    Your Vision. Our Expertise. Shaping the Future!

    Your Vision. Our Expertise. Shaping the Future!

    TekRevol is a globally recognized digital innovation company with 10 years of experience delivering high-impact mobile applications, AI-powered software, and scalable digital products. Every engagement begins with a clear roadmap, defined KPIs, and a commitment to measurable business outcomes...

    Top Services:

    • Mobile App Development
    • Web Development
    • AI Development
    • Staff Augmentation
    • Digital Marketing
    • Show more
    Location
    San Francisco, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    46 Projects Listed
    View Profile
    4.7 4.7 (10)
    4.6 4.6 (30)

  • SEO Discovery

    VerifiedVerified by the DesignRush team for authenticity and credibility.
    SEO with Guaranteed Leads (22 Years of Success)

    SEO with Guaranteed Leads (22 Years of Success)

    SEO Discovery helps small to mid-sized businesses boost online visibility, achieve top Google rankings, and attract quality leads. With 22 years of experience, our 400+ experts combine creativity and precision in digital marketing and SEO to deliver measurable, proven growth...

    Top Services:

    • Digital Marketing
    • SEO
    • PPC
    • Social Media Marketing
    • Content Marketing
    • Show more
    Location
    Jurupa Valley, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $10/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    8 Projects Listed
    View Profile
    4.8 4.8 (7)
    4.3 4.3 (561)

  • Sadja WebSolutions Ltd

    Your Digital Growth Partner

    Your Digital Growth Partner

    Sadja WebSolutions is a digital agency focused on creating custom websites, mobile apps and digital marketing to grow brands online. We help companies around the world increase their online presence and ROI through design, development and online marketing...

    Top Services:

    • Web Design
    • Digital Marketing
    • Digital Strategy
    • Graphic Design
    • Logo Design
    • Show more
    Location
    Torrance, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile
    4.3 4.3 (1)
    4.2 4.2 (33)

  • Material

    We Fuel Customer Strategy And Drive Engagement For Leading Brands

    We Fuel Customer Strategy And Drive Engagement For Leading Brands

    Material fuels customer strategy and drives engagement for leading brands. We are redefining human centricity for businesses to speed engagement and drive growth for the worlds most recognizable brands and innovative companies...

    Top Services:

    • Digital Marketing
    • SEO
    • PPC
    • Advertising
    • Social Media Marketing
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    250 - 499
    View Profile
    2.3 2.3 (3)

  • Hire Live Support Inc

    We talk, We Listen, We Provide Solutions

    We talk, We Listen, We Provide Solutions

    Hire Live Support is a full-scale BPO service provider and a digital marketing company with 10+ years clientele and preparedness. We specialize in providing the leading live support services and new-age digital marketing gigs to SMEs, Enterprises, and Startups to delegate, scale, and manage business...

    Top Services:

    • Call Centers
    • BPO
    • Web Design
    • Web Development
    • SEO
    • Show more
    Location
    Cerritos, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $5/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    16 Projects Listed
    View Profile
    3.0 3.0 (2)

  • Instant Web Makers

    Leading Web Design Agency in California | Expert Services Across The USA

    Leading Web Design Agency in California | Expert Services Across The USA

    IWM specializes in bringing your digital vision to life! Our team of expert designers, developers, and branding professionals is dedicated to unique solutions that look stunning and perform flawlessly. From responsive website design and robust backend development to eye-catching logos and brand identity, we...

    Top Services:

    • Branding
    • Logo Design
    • Web Design
    • Digital Marketing
    • SEO
    • Show more
    Location
    Irvine, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    Under $1,000
    View Profile
    5.0 5.0 (8)

  • Callbox

    Grow Your Sales Pipeline With Human + AI

    Grow Your Sales Pipeline With Human + AI

    Founded in 2004 and headquartered in Encino, California, Callbox Inc. is a global leader in outsourced B2B lead generation, appointment setting, and event marketing. With over 20 years of experience and a multilingual team servicing APAC, LATAM, and EMEA, the agency supports medium-sized businesses to...

    Top Services:

    • Managed Services
    • Cloud Consulting
    • Digital Marketing
    • ERP Consulting
    • CRM Consulting
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    500 - 999
    Portfolios Count
    100 Projects Listed
    View Profile
    4.8 4.8 (5)
    4.1 4.1 (48)

  • Americaneagle

    Don't just grow, soar.

    Don't just grow, soar.

    Americaneagle.com is essentially a one-stop shop offering a comprehensive range of options for anyone wishing to thrive in their online pursuits. A family-owned, privately held business with a proven track record of success and reliability is Americaneagle.com...

    Top Services:

    • Web Development
    • SEO
    • Content Marketing
    • Email Marketing
    • Social Media Marketing
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    500 - 999
    Average Hourly Rate
    $175/hr
    View Profile
    4.8 4.8 (5)
    4.6 4.6 (59)

  • WebFX

    VerifiedVerified by the DesignRush team for authenticity and credibility.
    Digital Marketing That Drives Results® - WebFX®

    Digital Marketing That Drives Results® - WebFX®

    SEO agency WebFX frames AI search optimization as preparing content for how AI systems interpret, summarize, and surface brand information across tools like Google AI Overviews and generative engines. It extends traditional SEO into machine-readable visibility beyond standard rankings...

    Top Services:

    • Digital Marketing
    • SEO
    • Content Marketing
    • Email Marketing
    • Social Media Marketing
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    500 - 999
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    10 Projects Listed
    View Profile
    4.8 4.8 (5)
    4.5 4.5 (205)

  • Mavlers Agency

    A full-service digital marketing and technology agency

    A full-service digital marketing and technology agency

    Our high-performing teams of 1000+ professionals aim to bridge gaps in performance and maximize a companys potential, regardless of time zone and geographical boundaries...

    Top Services:

    • Web Development
    • Digital Marketing
    • SEO
    • Social Media Marketing
    • Email Marketing
    • Show more
    Location
    San Jose, California
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    7 Projects Listed
    View Profile
    4.6 4.6 (10)

  • SunTec India

    AI-Enabled IT and Digital Services Company

    AI-Enabled IT and Digital Services Company

    SunTec India is an AI-enabled IT and digital services company with 25+ years of experience, 1,500+ full-time employees, 8500+ clients worldwide, and a full spectrum of IT outsourcing, data solutions, digital engineering, eCommerce support, digital marketing and photo editing services...

    Top Services:

    • Web Development
    • Mobile App Development
    • eCommerce Development
    • SEO
    • Web Design
    • Show more
    Location
    Laguna Beach, California
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $25/hr
    Portfolios Count
    6 Projects Listed
    View Profile
    4.3 4.3 (7)
    3.5 3.5 (684)

  • Grazitti Interactive

    Marketing For Digital Natives

    Marketing For Digital Natives

    Grazitti Interactive, a global leader in digital innovation, offering AI-driven solutions to drive customer success. We specialize in Salesforce, marketing automation, analytics, and more, partnering with industry giants to deliver results-oriented solutions for clients...

    Top Services:

    • Graphic Design
    • Video Production
    • Web Design
    • Web Development
    • Digital Marketing
    • Show more
    Location
    Mountain View, California
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    11 Projects Listed
    View Profile
    4.8 4.8 (5)
    4.3 4.3 (387)

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