The 10 ranked SEO companies in California hold 974 Google reviews between them, with an average rating of 4.67. Two cities have two or more ranked agencies: Los Angeles (3) and Ahmedabad (2).
974Google reviewsacross the 10 agencies above
4.67average Google ratingout of 5
$25–300/hrhourly rate range32 agencies
0 of 67offer white-label SEOon this list
How the Rankyfy Score ranks SEO companies in California
The Rankyfy Score rates an agency from 0 to 100 on five things clients can check themselves: client reviews, measured visibility, portfolio, responsiveness and credentials. Measured visibility is the component that separates agencies on this list today, because most profiles are new and carry similar review data.
Rankyfy Score components and how each is calculated
Component
Points
How it is calculated
Client reviews
40
Adjusted average rating, review count on a log scale, recency (the last 24 months weigh most), and the share verified by call or LinkedIn.
Proof of skill
25
For SEO: the agency's own organic and AI-search visibility trend, authority growth and site health. For design and development: site speed and a verified portfolio.
Portfolio and experience
15
Case studies with verified metrics, years in business from the registry, confirmed clients.
Responsiveness and transparency
10
Median time to first reply on briefs, response rate, published pricing, profile completeness.
Credentials and presence
10
Verified partner badges, third-party awards, speaking and publications.
Rankyfy Score
100
All components added and rounded. Agencies with the same Rankyfy Score are listed by measured search visibility, highest first. Sponsored slots sit outside the numbering and never change a score.
To be ranked, an agency must also:
Be an established SEO company with an office in California, with a verified location, a description and its services listed on Rankyfy.
Have at least one proof point: verified client reviews, measured visibility or a case study.
Score 20 or higher. Every agency on this list clears that mark.
We recalculate every score on the 1st of each month from reviews, measurements and profile data on Rankyfy. 67 agencies were evaluated for this edition.
Disclosure: Rankyfy Agencies is run by Rankyfy. Agencies connected to Rankyfy or its staff are labelled on their listing, score on exactly the same five components as every other agency, and are not eligible for awards. Sponsored slots never change rank. Disclosures · Full methodology
Small businesses have always been the main focus for Streamline Results, a digital marketing agency in Thousand Oaks, California, operating since 2010. The team says it comes from a family of small business owners, and the agency works by the motto "We Grow As You Grow", treating client success as tied to its own.
SEO and PPC are the two areas the agency emphasises. For search, it describes keyword research, on-page optimisation and building quality backlinks to improve organic visibility. For paid media, it manages Google Ads, Bing Ads and social media advertising, using data to refine targeting, ad copy and bidding. Its listed services also include local SEO, ecommerce SEO, link building, content marketing and broader digital marketing. Industries on its profile are dentists, real estate and B2B, and the team works in English and Spanish.
Streamline Results has a 1-9 person team, and projects start from $1,000, a level that suits local firms with modest budgets. Its stated principle is to say what it will do and then do it, with a focus on campaigns that return their cost. The agency is a reasonable fit for small and local businesses in Southern California and elsewhere in the US that want SEO and PPC from a close-knit team.
Based in Encinitas on the Southern California coast, Collective42 combines search engine optimisation, website design and pay-per-click advertising, with the three services taking a roughly even share of its work. SEO leads slightly, but the agency presents itself as a mix of marketing and web build skills rather than a pure search shop, and it also mentions custom web development alongside design.
Its listing describes strategic work for businesses in San Diego, the wider Southern California region and elsewhere in the United States. The team falls in the 10 to 49 person band. Projects start at around $10,000, and hourly rates sit between $100 and $149, so it is priced for companies with a defined budget rather than one-off small fixes.
Collective42 is a reasonable fit for a Californian or US business that wants one SEO agency in Encinitas to handle a new website, organic search and paid campaigns together, and that prefers working with a mid-sized local team.
Ethos Ink is a boutique SEO agency in San Diego, founded in 2024, that works with ecommerce brands wanting search to produce revenue rather than just rankings. Its tagline is "Grow Smarter. Rank Higher.", and it describes its style as direct, avoiding vanity metrics, bloated reports and generic playbooks, especially for brands with a distinct personality.
The core offer is ecommerce SEO: audits, keyword research, category-page strategy, product-page optimisation, internal linking and competitor gap analysis. The agency also works on AI search optimisation, aiming to improve how AI engines understand and reference a brand, and on product discovery, improving catalogue taxonomy, product feeds, schema and merchandising so items are easier to find and shop. Its view is that buyers now move between search results, AI-generated answers, shopping listings, category pages and editorial articles before buying, so brands need to appear clearly across all of them. Content marketing, content writing and PPC also appear in its declared mix, with digital marketing as the largest share.
The studio has 1-9 people, works in English, and lists ecommerce as its industry. Budgets start from $5,000. Ethos Ink suits online retailers, particularly brand-led stores with large catalogues, that want a specialist ecommerce SEO partner focused on site structure, product pages and AI visibility.
B2B manufacturers, industrial suppliers and engineering firms make up much of the client base of Ready Artwork, a web design and digital marketing agency in Monrovia, California. It serves the greater Los Angeles area and B2B companies nationwide, and its work is split across SEO, web design and PPC, with search slightly ahead.
The agency began in 2003 as a graphic design partnership and now offers B2B website design and development on WordPress and Shopify, UI and UX design, technical SEO, accessibility work to ADA standards, AI SEO and generative engine optimisation, email marketing, and PPC including Google Ads. Website projects follow a seven-step blueprint that runs through discovery of the business and brand, a review of its technology, a look at competitors, mapping of the buyer journey, a sitemap, wireframes and strategic advice, all before any design begins.
Its listing names work for Inaba Denko America, Sentran, Mee Industries and SouthWest Water Company. Ready Artwork says it holds DBE and SBE certification and is a Shopify and Google partner. The team is in the 10 to 49 band, projects start around $25,000 and hourly rates are $200 to $300, so it suits companies planning substantial projects. It is a strong match for HVAC brands and other technical businesses with long sales cycles that need a B2B web design and SEO agency in Los Angeles County.
Royal Reef Media calls itself the Visibility Agency for Healthcare. Founded in 2023 in Costa Mesa, California, it helps healthcare providers attract patients by improving how they appear in Google Search, Google Maps and AI-powered search tools such as ChatGPT, Google AI Overviews and Perplexity.
The practices it targets include therapy practices, treatment centres, psychiatry clinics, mental health providers, primary care, dentists, chiropractors and med spas. Its services cover local SEO, Google Business Profile optimisation, AI search optimisation, review management and citation management, combined into wider visibility strategies. Its profile divides work evenly between digital marketing, SEO, local SEO and PPC. The agency says it looks beyond rankings alone, aiming to help the right patients find a practice at the moment they search for care, and that it pairs established local SEO practice with optimisation for AI search to build authority and trust over time.
Royal Reef Media is a small team in the 1-9 band, works in English, and lists project budgets of up to $2,500. It is a good fit for clinics and independent healthcare providers looking for a local SEO agency in California focused on Maps rankings, reviews and AI visibility.
Uplers offers digital marketing services from its headquarters in Ahmedabad, with further offices in San Diego and Australia, a team in the 250+ band and a founding year of 2021. Its declared marketing services are unusually broad and evenly weighted: SEO, ecommerce SEO, local SEO, AI SEO and generative engine optimisation, link building, content marketing, PPC, web design, Shopify development, Amazon marketing and general digital marketing.
The company's own description, however, focuses on a different side of the business: an AI-assisted hiring platform that helps product companies and start-ups build engineering teams in India. It says it combines software screening with judgement from senior recruiters, shares a short list of vetted profiles with each client, and also offers employer branding and consulting. It names GitLab, BrowserStack, Airbnb, Tripadvisor and Illuminr among the companies it has worked with, and offers replacement terms on both full-time and contract hires.
For marketing work, hourly rates are under $25 and minimum projects are $1,000. Listed industries are healthcare, real estate, B2B, ecommerce and education. Uplers suits companies that want a large team in India either to provide marketing capacity or to staff their own in-house functions.
Startups, small and medium businesses and enterprises all fall within the remit of Marketer Zilla, a San Diego digital marketing and web development agency founded in 2021. Its tagline is "Future-Ready SEO. AI-Powered Growth.", and its listed specialities run wide, from local, technical, enterprise and international SEO to AI SEO, answer engine optimisation and generative engine optimisation.
The SEO work covers technical audits, keyword research, on-page optimisation, content strategy, link building and ongoing optimisation. The agency also runs Google Ads and PPC management, social media marketing, content marketing, branding, conversion rate optimisation and performance marketing. Its web development team builds sites on WordPress, Shopify, React, Next.js and custom technologies, with attention to speed, security, mobile use and search performance. Each plan is shaped around the client's goals, audience and industry. In its declared mix, digital marketing takes the largest share, with AI SEO and GEO, PPC, SEO, local SEO and ecommerce SEO following.
Marketer Zilla has a team in the 10-49 band and works in English and French. It lists ecommerce as its industry and accepts projects of any budget. It is a reasonable choice for businesses, especially Shopify and online stores, that want SEO, AI-search work, paid ads and a new website from a single agency in California.
Three29 is a Sacramento, California agency with 10 to 49 people. It gives equal weight to PPC, web design, digital marketing and SEO, so it can build or rework a website and then attract visitors through paid and organic search.
The minimum project size is $10,000, and hourly rates range from $100 to $149. That positions the agency for established businesses with a meaningful budget for a website or ongoing marketing. Companies looking for a web design and PPC agency in Sacramento that also covers SEO may find Three29 relevant. Industries served and working process are not listed, so ask about relevant experience early.
Digital commerce modernisation is the specialism of Mira Commerce, a full-stack agency and systems integrator in Walnut Creek, California. Its declared work is split evenly between SEO and web design, but its own description shows a much broader technical scope, running projects from UX and storefront design through to middleware, data orchestration and back-end integration.
Core services include commerce strategy and roadmap planning, composable architecture design, ecommerce replatforming, front-end redesign and performance work, and connecting back-office systems such as ERP, PIM, OMS, CRM, DAM and CDP platforms and fulfilment tools through APIs and middleware. It implements headless, MACH and hybrid architectures, and also handles conversion rate optimisation, SEO and digital merchandising design, plus ongoing managed support and co-delivery capacity. The agency notes that it is a BigCommerce Elite partner.
Mira describes itself as both a strategic adviser and a delivery team, which it says reduces hand-offs between vendors. It works in complex sectors such as specialty retail, B2B commerce, regulated products and manufacturing, and prefers clients with some digital maturity who want a long-term partner. With 50 to 249 staff, a $75,000 minimum project and hourly rates of $150 to $199, Mira Commerce is aimed at brands, retailers, distributors and manufacturers replacing legacy commerce systems at scale.
Plumbing and HVAC contractors are the sole focus of RankMeTop, a San Jose, California digital marketing agency founded in 2022. It works with service companies that want more local visibility and a steady stream of qualified service calls from search, paid media and local platforms.
Digital marketing is the largest share of its listed work, followed by SEO, PPC, link building, local SEO and web design. Specific services include Local Services Ads, Google Business Profile management, social ads, minimalist website design, reputation management and content marketing, all built for plumbing and heating businesses. The agency says these channels are planned to work together, so organic search, paid campaigns, listings, reviews and content support one another across the buying journey. It describes an AI-enabled, data-driven approach that uses performance data, search behaviour, ranking signals and conversion activity to decide which locations, services, keywords and channels deserve attention. Because contractors often cover several cities and suburbs, its strategies are organised around service-area targeting and the urgent searches customers make.
RankMeTop lists a team of 50-249 people, works in English, focuses on home services, and quotes projects of $1,000 to $2,500. It suits plumbing and HVAC companies looking for a local SEO and PPC agency in California that understands how trade customers search.
socialmedias, which trades online as socialmedias.net, is a young agency founded in 2025 with its headquarters in Bengaluru and a presence in the United States. It aims its services at small and medium-sized businesses in both countries, positioning itself as an alternative to the higher fees charged by larger agencies.
SEO, digital marketing, social media marketing, web design and PPC each make up an equal share of its declared work. The listing adds Google and Meta advertising, content marketing, email marketing, brand identity and influencer marketing, along with in-house brand videography and product photography, which the agency singles out as a capability many digital firms lack. It says it blends creative storytelling with data-led planning, and that it offers packages backed by an ROI guarantee; prospective clients should ask for the exact terms. Industries it lists include healthcare, real estate, B2B and ecommerce.
The team falls in the 10 to 49 range. Hourly rates are $25 to $49, and the minimum project size is not disclosed. The agency suits Indian businesses growing online and US small businesses that want SEO, paid social and creative production from a Bengaluru-based team at offshore rates.
Online reputation management is the specialty of ReputationPrime, a firm based in Santa Monica, California. Its work concentrates on what people find when they search for a business: pushing down negative search results, getting harmful reviews removed and building a more trustworthy presence through reputation strategies set for each client.
To do that, it draws on services split evenly between digital marketing, SEO, PPC, link building and local SEO, and it lists B2B companies and ecommerce businesses among its industries. The firm says its people have many years of experience in the field.
ReputationPrime has 10–49 people, works in English and takes projects starting from $5,000. It suits companies and brands facing damaging search results or reviews that want a reputation management firm in California rather than a general marketing agency.
Data guiding decisions is the founding idea behind RSO Consulting, a San Francisco digital marketing agency. Its declared work is split almost equally between SEO, PPC and social media marketing, and its own service list adds AI search optimization, Google Analytics and tag management, content strategy and optimization, and digital strategy consulting.
The agency describes working closely with organizations across many industries, shaping campaigns around each client's goals, budget and timeline, and using analytics and market research to keep adjusting them over time. It says it works with everyone from startups building an online presence for the first time to larger enterprises trying to get more from their existing digital spend. RSO Consulting states that it is a Google Partner and emphasizes clear communication and white-hat SEO practices, which may appeal to companies wary of shortcuts that risk search penalties.
The team falls in the 10 to 49 person band. Projects start at $5,000, and hourly rates range from $100 to $149. RSO Consulting suits businesses looking for a San Francisco SEO and PPC agency that can also set up proper analytics and tag management, so that search and paid campaigns are measured on reliable data from the start.
Carlsbad, California is the headquarters of Storm Brain, a full-service digital agency in the 50 to 249 range that says it also has offices in Los Angeles, San Diego, Orange County, Miami and New York. Its declared work is split across SEO, web design and PPC, with search slightly ahead.
The agency serves B2B firms, direct-to-consumer online retailers, and mid-sized to enterprise companies. It covers brand strategy and creative design, UI and UX, custom WordPress development, Shopify and Shopify Plus builds, SEO, answer engine and generative engine optimisation, and performance marketing through Google Ads, Meta, LinkedIn, email and content. It also provides website maintenance and support. Storm Brain describes acting as an extension of the client's team from launch onward, with campaigns measured on revenue and leads, and websites built both to rank in Google and to be cited by AI assistants.
Industries it lists include healthcare and biotech, B2B SaaS, financial services, ecommerce, real estate, manufacturing, education, entertainment and nonprofits. Projects start at around $10,000 and hourly rates are $150 to $199. It suits established brands looking for a web design and SEO agency in Southern California that can handle branding, Shopify or WordPress builds and ongoing marketing.
San Francisco agency Secret Sushi, Inc offers an evenly balanced set of services: PPC, digital marketing, content marketing, social media marketing and SEO each account for an equal share of its work. Rather than leaning on a single channel, it covers both paid and organic routes to an audience, along with the content that supports them.
The agency has between 10 and 49 people. Its minimum project size is $5,000 and hourly rates range from $150 to $199, a mid-to-upper price point. That makes it more likely to suit established companies with a dedicated marketing budget. Businesses looking for a digital marketing agency in San Francisco that combines PPC, SEO and content may find Secret Sushi worth a closer look. Industry focus is not listed.
Costa Mesa, California is where KlientBoost is headquartered, with further team members in Raleigh, North Carolina and working remotely across North America. Its declared work is split between SEO, PPC and social media marketing, and the agency positions itself around measurable growth in pipeline, revenue and profitability.
KlientBoost says it pools performance data from across its active client base so that new campaigns start from evidence rather than guesswork. It works with SaaS, ecommerce and lead generation businesses and notes that, although it lists well-known names such as Airbnb, NPR, Stanford, Bloomberg, Upwork and SAP among its clients, it also takes on much smaller companies. The agency is known for publishing marketing content and offers prospective clients a free marketing plan before engagement.
The team sits in the 50 to 249 band. Projects start at around $1,000 and hourly rates run from $100 to $149, which makes it accessible to growing companies as well as larger ones. KlientBoost suits SaaS firms, online retailers and lead-driven businesses looking for a PPC and SEO agency in California that relies on cross-client performance data.
Los Angeles agency Visible Factors describes itself as data-driven and organised as an agency collective, bringing together experienced practitioners to serve growing brands and companies. Its declared work is split across SEO, PPC and content marketing in roughly equal parts.
The agency's own account names three main channels: search engine optimisation, paid media and email and lifecycle marketing. It says its client base has been built through referrals and word of mouth rather than outbound selling, and it positions the collective model as an alternative to the structure of a traditional agency.
The team has 10 to 49 people. The minimum project is $5,000, and hourly rates of $200 to $300 are at the upper end of the market, which reflects its emphasis on experienced specialists. Visible Factors is likely to suit growth-stage brands that want senior input on SEO, paid media and retention marketing from a Los Angeles agency.
Every profile on this list shows which of these the agency offers, checked by our team.
Red flags
Guaranteed rankings. Google warns against SEOs that guarantee rankings or claim a special relationship with Google (Google Search Central).
Recent verified reviews of these agencies
No published reviews of these agencies yet.
Reviews are collected on Rankyfy only. Negative reviews stay visible. Review policy
How we ranked these 67 agencies
We evaluated 67 agencies in California offering SEO.
Each got a Rankyfy Score out of 100 from five factors: measured visibility 25, client reviews 40, portfolio 15, credentials 10, responsiveness 10.
Agencies are listed by score alone; ties go to more verified reviews. Sponsored slots sit outside the numbering.
An editor checked the top entries against their profiles, contracts and sample reports.
Data
Reviews collected and verified on Rankyfy; search visibility measured by Rankyfy; prices from agency packages; reply times from briefs sent through Rankyfy. Snapshot as of Nov 10, 2026.
Sponsored slots
Sold per page and month, labelled, with rel="sponsored" links. They never change rank or score.
Conflicts of interest
Rankyfy Agencies is run by Rankyfy. Agencies connected to Rankyfy or its staff are labelled on their listing, score on exactly the same five components as every other agency, and are not eligible for awards. Sponsored slots never change rank. Disclosures
