Best SEO Agencies in California (2026) – Ranked by Case Studies

Bop Design Visit Website →

MediKeeper Client-verified

Web Design, Web Development, SEO

SaaS

11-50 Employees

N/A

San Diego, CA

N/A

16% increase in users
20% increase in % of new users
9% increase in # of sessions
26% increase in organic search traffic

REC Solar

Web Design, SEO

Solar & Renewable Energy

51-200 Employees

N/A

San Luis Obispo, CA

N/A

3.75% increase in sessions
2.09% increase in users
18.84% increase in organic search sessions
23.54% increase in organic search users
1.89% increase in engagement rate

Brixton Capital

Web Design, SEO

Real Estate

11-50 Employees

N/A

Solana Beach, CA

N/A

56.75% increase in sessions
53.82% increase in engaged sessions
45.94% increase in new users
54.44% increase in event count
30.58% increase in direct search sessions

Intero Digital Visit Website →

Arcadia Data Client-verified

PPC, SEO

SaaS

11-50 Employees

N/A

San Mateo, CA

N/A

510% increase in first page rankings in the 1st six months
23x return on internal goals
2122% increase in first page rankings to date

Tuscany Pavers

SEO

Home Services

11-50 Employees

N/A

Escondido, CA

N/A

47X increase in ROI
$2.82 million in additional revenue
1,240 new first-page rankings

Nomadix

SEO

Ecommerce

51-200 Employees

N/A

Woodland Hills, CA

N/A

43.23% increase in e-commerce revenue
29% increase in keywords ranking in the top 10 positions
34.6% organic traffic boost

Search Business Group Visit Website →

Taco Bar Catering Client-verified

SEO, Local SEO

Food & Beverage

N/A

California, United States

N/A

Conversions and year-over-year revenue +250%
Online orders and phone calls +85%
7,225+ items sold and 315+ online orders
$105,700+ revenue generated by SEO
Listed in the local 3-pack

Newport Beach Athletic Club

SEO

Fitness

N/A

Newport Beach, CA

N/A

Conversions up 7x
Year-over-year revenue +350%
35,150+ visits
458+ memberships
$1.37M+ revenue generated by SEO

Orange County Table Tennis Academy

SEO

Hobbies & Leisure

N/A

Fountain Valley, CA

N/A

Conversions up 6x
Ranked #1 in Orange County, within the top 3 results
33,000+ visits
458+ passes sold
$747K+ revenue generated by SEO

TripleDart Digital Visit Website →

Helpshift Client-verified

PPC, SEO, GEO

SaaS

201-500 Employees

N/A

San Francisco, CA

N/A

16x pipeline influence and 5x ROAS over 24 months
Brand awareness among the ICP +80%
$700K pipeline influenced via ABM
Opportunities created +26%

Glean

SEO, Content Marketing

1K-5K Employees

N/A

Palo Alto, CA

N/A

Monthly organic clicks +275% (~18K to ~67K+)
Monthly impressions +365% (~260K to ~1.2M+)
Keywords ranked grew from ~4,000 to ~22,000+
Total monthly conversions grew from 250 to 1,800
Domain Rating rose from 55 to 71 over 20 months

Locus

SEO, GEO, CRO

SaaS

201-500 Employees

N/A

Milpitas, CA

N/A

Organic pipeline about 2x the Q1 target and +43% year over year
AI brand mentions +73% in four months
Junk and spam lead share down nearly three-quarters
Mid-market and enterprise lead share +35%

Juris Digital Visit Website →

Silva Injury Law Client-verified

SEO

Law Firm

11-50 Employees

N/A

Turlock, CA

N/A

85% increase in organic traffic
79% increase in form leads
60% increase in case sign-ups

UFO Performance Marketing Visit Website →

Blade & Blue Client-verified

PPC, SEO, Email Marketing

Fashion

N/A

San Francisco, CA

N/A

+405% ROAS on paid campaigns
+65% revenue growth
+71.2% increase in conversion rates

Tavano Team Visit Website →

Sunshine Supply Client-verified

Web Development, SEO, PPC

Wholesale Distribution

11-50 Employees

N/A

San Diego, CA

N/A

46% traffic increase
Average search positions reduced by 30%

MarketCrest Visit Website →

Warren Law Firm Client-verified

SEO, PPC

Law Firm

N/A

San Francisco, CA

N/A

Revenue tripled, from $650K in 2021 to $1.9M in 2023 (21 months)
Google PPC returned up to 9X ROI on ad spend
1,730 PPC conversions from January to August 2023
474% increase in SEO keywords
Monthly organic traffic up from 69 to 4,200 visitors

Ready Artwork - Website, Design, Marketing Visit Website →

MEE Industries (MeeFog) Client-verified

SEO, GEO

Industrial

N/A

Irwindale, CA

N/A

80x growth in monthly search impressions
48x growth in monthly organic clicks
Average Google page ranking from page 3 to page 1
1,000+ new sessions from AI platforms

Coalition Technologies Visit Website →

Cablesys

SEO

Consumer Electronics

51-200 Employees

N/A

Fullerton, CA

N/A

32.27% Increase in Revenue
99% Increase in Total Site Traffic
111% Increase in And New Users Have

All American Fence Erectors

SEO

Home & Garden

1-10 Employees

N/A

Hesperia, CA

N/A

37.63% Increase in Organic Traffic Has
478% Increase in Overall Sessions
306.76% Increase in Overall Revenue
320% Increase in Transactions

NeedCrystals

SEO

Beauty

1-10 Employees

N/A

Chula Vista, CA

N/A

107% Increase in Organic Sessions on the Site
104% Increase in New Organic Users
211.66% Increase in Organic Revenue

Victorious Visit Website →

CitySwoon

SEO

Dating App

11-50 Employees

N/A

Santa Monica, CA

N/A

1,491 Increase in Total Target Keyword Positions
55% Increase in Unbranded Keyword Clicks
33% Increase in Goal Completions

ClassDojo

SEO

Education

201-500 Employees

N/A

San Francisco, CA

N/A

1,000% Increase in Target Page Organic Traffic
1M+ Monthly Organic Search Visitors
13% Increase in Organic Traffic

Gema & Co

SEO

Jewelry

1-10 Employees

N/A

San Francisco, CA

N/A

421% Increase in Organic Traffic
291% Increase in Organic Revenue
250% SEO Campaign ROI

NP Digital Visit Website →

Nova Color Paint

SEO

Arts & Crafts

11-50 Employees

N/A

Hawthorne, CA

N/A

489% increase in organic impressions
148% increase in organic clicks
165% increase in ranking keywords

Headset Advisor

SEO

Consumer Electronics

11-50 Employees

N/A

Rancho Cordova, CA

N/A

221% click growth
291% impression growth
393% increase in ranking keywords

Winward Home

SEO

Home & Garden

11-50 Employees

N/A

Fremont, CA

N/A

Organic visitors grew from 323 to 791 per month
333% increase in total organic keywords
338% increase in keywords in positions 1-10

Website Depot Inc. Digital Marketing & SEO Visit Website →

Dr. Mobasser

SEO

Dental

N/A

Hollywood, CA

N/A

89% increase in organic traffic in 6 months
95% growth in organic page views
60% increase in organic sessions
First-page rankings within 3-9 months

Dr. Rojas Cosmetic Surgery

SEO

Plastic Surgery

N/A

Venice, CA

N/A

343% increase in organic traffic
250% increase in page views in 3 months
73% of keywords ranked in the top 10
Organic leads grew 4x in 5 months

Venice Beach Surgical Center

SEO

Plastic Surgery

N/A

Venice, CA

N/A

55% increase in organic traffic in 4.5 months
78% of keywords ranked at the top of results
83% growth in organic lead volume

Siege Media Visit Website →

Secureframe

Content Marketing, SEO

Cyber Security

201-500 Employees

N/A

San Francisco, CA

N/A

560% Increase in Organic Traffic to Blog in 6 Months
17 Pieces of Siege-Generated Content Ranking Page One
95% Increase in Links in 6 Months

MyOutDesk

SEO, Web Design

SaaS

1K-5K Employees

N/A

Sacramento, CA

N/A

92% Increase in Average Monthly Traffic Value
99% Increase in Monthly Organic Traffic
981 Links

Instacart

Content Marketing, SEO

Ecommerce

1K-5K Employees

N/A

San Francisco, CA

N/A

451K Increase in Organic Traffic to Blog
46.5K Citations in LLMs
13K New Links to Website

Power Digital Visit Website →

Platform 9

PPC, SEO

SaaS

51-200 Employees

N/A

San Jose, CA

N/A

3x Increase in Page One Google Keywords (15 to 53)
231% Increase in Organic Sessions
227% Increase in New Users
30% Increase in Organic-Assisted Conversions
$55 Decrease in CPA MoM

PlushCare

SEO, Content Marketing, Public Relations

Healthcare

51-200 Employees

N/A

San Francisco, CA

N/A

45,400 Additional Keywords Gained
5,214% Increase in Keywords Ranking Positions 1-3
862% Increase in Organic Sessions
32% Campaign ROI

CellularOutfitter

SEO, Content Marketing, Public Relations

Ecommerce

N/A

Irvine, CA

N/A

24K Additional Keywords Ranked
888% Increase in Keywords Ranking Positions 1-3
232% Increase in Organic Traffic
159% Increase in Organic Revenue ($116.2K Added)

Brafton Visit Website →

AppDirect

SEO

SaaS

501-1K Employees

N/A

San Francisco, CA

N/A

1200+ organic users generated monthly since March
$30000+ in traffic value over 6 months

Stanford University

SEO, Content Marketing

University

10K+ Employees

N/A

Stanford, CA

N/A

3.8K monthly traffic generated
81 backlinks earned
$12000 worth of traffic generated

Webex (Socio.Events)

SEO, Content Marketing

Event Services

501-1K Employees

N/A

San Jose, CA

N/A

649% increase in organic traffic
535% increase in organic traffic value
181 new referring domains

Page One Power Visit Website →

PeopleFinders

SEO

Public Records

51-200 Employees

N/A

Sacramento, CA

N/A

103% More Impressions on Priority Pages
83% Increase in Reverse-Phone Clicks
New Rankings for High-Volume Queries

Mount-It!

SEO

Ecommerce

51-200 Employees

N/A

Poway, CA

N/A

87% Average Position Improvement on Collection Pages
33% Increase in Non-Branded Impressions
AI Referral Traffic Grew From 1,700 to 5,000 YoY

Tipalti

SEO, Content Marketing

Fintech

1K-5K Employees

N/A

Foster City, CA

N/A

158% Target Page Click Growth
198% Target Page Impression Growth
Priority Keyword Moved Into Top 3

Rotate Digital Visit Website →

Meathead Movers

SEO, Local SEO

Moving

201-500 Employees

N/A

San Luis Obispo, CA

N/A

Site-wide organic traffic nearly doubled, up 90% from about 30K to 57K sessions
Total phone call events up 122% to 8,857
Westlake Village sessions up 353% and key events up 985%
Temecula organic sessions up 133% and conversions up 196%
Oxnard/Camarillo organic sessions up 94% and conversions up 149%

Nor-Cal Moving Services

SEO, Local SEO

Moving

201-500 Employees

N/A

Hayward, CA

N/A

"Mover Bay Area" climbed 78 positions to rank #18, with no ad spend
"Sunnyvale moving companies" up 65 positions to #12
"Moving in San Francisco" up 73 positions to #20
"Moving companies San Jose" up 29 positions to #8
"San Francisco movers" up 56 positions to #17

Royal Moving Co.

SEO, Local SEO

Moving

11-50 Employees

N/A

Los Angeles, CA

N/A

Organic traffic reached about 3,779 visits and 5,331 ranking keywords by January 2025
Portland "moving companies near me" held #1 as share of local voice rose from 28 to 42.67
Los Angeles "moving companies los angeles" map rank improved from 10th to 3rd in four months
North Hollywood "movers near me" improved from 2nd to 1st
San Francisco "moving company san francisco" reached 3rd; San Jose "moving services" 1st