Discover the leading Connecticut SEO companies offering high-end search engine optimization services to help you land a spot on the first page of Google. Filter through them by average rates, client reviews, team size to select the right team for your business needs and budget.
Best Connecticut SEO Company Rankings
3 Companies-Rankings updated: September 11, 2026
DesignRush vets all agencies based on professional qualifications and verified customer feedback to help you choose confidently. Some featured agencies maintain paid sponsorships.
AVX develops ROI-focused custom marketing strategies that deliver results and leverage data to consistently improve campaign performance...
Top Services:
PPC
SEO
Digital Marketing
Email Marketing
Social Media Marketing
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Location
Bridgeport, Connecticut
Number of Employees
Under 49
Average Hourly Rate
$175/hr
Minimal Budget
$10,000 - $25,000
AVX Digital Services
PPC
SEO
Digital Marketing
Email Marketing
Social Media Marketing
Digital Services
Branding
Graphic Design
Web Design
Business Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Children's Health
Credit Associates
Stratford University
Tip Top Tailors
Huron Capital
Plains Capital Bank
Signal Funding
Grafton Apparel
The Apparel Group Ltd.
777 Partners
Data sourced from the agency's DesignRush profile
AVX Digital Reviews & Testimonials
Jerry Huang SVP at Rosetta Stone
5.0★
Digital Services Review from Jerry Huang
AVX Digital does it all and does it well! And even more importantly, we trust them with our business - they spend the time and effort to learn and become our business which helps their marketing campaigns.
Lenirose Espiritu Review from Google
5.0★
Lenirose Espiritu's Review Sourced from Google
Advantix is an excellent and highly reputable digital agency. They have an extremely talented and personable group who are true digital experts that respect companies' strategies and budgets while constantly presenting best in class approaches. Highly recommend!
Paisley Crain Review from Google
1.0★
Paisley Crain's Review Sourced from Google
Horrible experience with this agency. They wasted thousands of dollars on keywords not related to my business, failed to deliver accurate monthly reports, and my website had better SEO results before they started. I was on page 1 for my most important keyword, and am now on page 3 in a six month period. My account was passed on to 3 or 4 separate reps due to employee turnover and I was constantly reeducating people about my company and goals. My business was better off with Reach Local! Thankfully I only signed a 6 month contract, I don't know if my business could have survived an entire year of Advantix induced set backs.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Rebellion Group is a full-service brand and marketing agency based in Connecticut. We help organizations understand their markets, clarify their position, strengthen their brands, and create marketing that moves people and drives growth...
Top Services:
Branding
AEO
Content Marketing
PPC
SEO
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Location
Cheshire, Connecticut
Number of Employees
50 - 99
Average Hourly Rate
$175/hr
Rebellion Group Services
Branding
AEO
Content Marketing
PPC
SEO
Creative Services
Web Development
Email Marketing
Video Production
Social Media Marketing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
VerifiedVerified by the DesignRush team for authenticity and credibility.AI LeaderRecognized for strong visibility across AI-powered search and answer engines.
Think Web. Think Smart. Partner With the #1 Rated Digital Marketing Agency.
SmartSites is known for elevating online visibility through advanced search engine strategies. Our powerful insights optimize results across every digital marketing campaign, blending organic growth techniques with innovative content tactics to drive sustained engagement and measurable success...
Top Services:
Digital Marketing
SEO
PPC
Social Media Marketing
Email Marketing
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Location
Stamford, Connecticut
Number of Employees
100 - 249
Average Hourly Rate
$100/hr
Portfolios Count
4 Projects Listed
SmartSites Services
Digital Marketing
SEO
PPC
Social Media Marketing
Email Marketing
Web Design
Web Development
Advertising
eCommerce
Digital Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
A&A Thermal Spray
AGA Truck Parts
Agape Health and Wellness
Agile Data Sites
Data sourced from the agency's DesignRush profile
SmartSites Reviews & Testimonials
Paloma Anguiano Content Manager at JP Pierre, LLC.
5.0★
Digital Services Review from Paloma Anguiano
Overall I feel very confident working with Patrizia and Darius from Smart Site, they have given us clear explanations and accompanied us throughout the process for the growth of the brand. The attention to us is very fast and they advise us in an adequate way.
Brianna Porter Chief Operating Officer at The Ryan Law Group
5.0★
Digital Services Review from Brianna Porter
SmartSites impressed me from day one. They are knowledgable, kind, and most importantly keep things simple and streamlined so that even an SEO-newb like me can understand. Tiffany and Luna are my main points of contact and they are especially great! I would recommend to anyone looking for an agency to really take their website and digital presence to the next level.
Jim Curry Owner at Royale Coffee Co.
5.0★
PPC Review from Jim Curry
At first, a survey was conducted to gather company background, product information, target markets, etc. Next, accounts were established on various Google Business platforms, social media, etc. Then SmartSites created the ads and campaigns, and we were off and running in just a few weeks.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews