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
6 Companies-Rankings updated: September 11, 2026
DesignRush evaluates each agency using expert assessment and client feedback to inform your choices. Some featured agencies have paid placements.
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
VerifiedVerified by the DesignRush team for authenticity and credibility.
Top-Rated PPC & Digital Marketing Agency Focused on Driving Results
Dusruptive Advertisement's SEO engagements are aimed at uncovering inefficiencies in existing traffic, be it underperforming pages, wasted rankings, or misaligned keyword targeting. From there, strategy shifts toward aligning search visibility with set business outcomes...
Top Services:
PPC
Social Media Marketing
Digital Marketing
Email Marketing
eCommerce
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Location
Stamford, Connecticut
Number of Employees
100 - 249
Minimal Budget
$10,000 - $25,000
Portfolios Count
7 Projects Listed
Disruptive Advertising Services
PPC
Social Media Marketing
Digital Marketing
Email Marketing
eCommerce
Advertising
SEO
Business Consulting
Creative Services
Digital Strategy
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Adobe
Scotts MiracleGro
Litter-Robot
Guitar Center
Fandango
PennyMac
Diesel Power Gear
Death Wish Coffee
TruDog
Conoco Phillips
Data sourced from the agency's DesignRush profile
Disruptive Advertising Reviews & Testimonials
Anonymous Marketing Manager, Sound Approach at Sound Approach
4.8★
eCommerce Review from Anonymous
Right after launching our campaigns with Disruptive, we saw results almost instantly. Our monthly revenue jumped from about $50,000 to over $70,000. Every key Google Ads metric improved, and by November, we were already nearing $550,000 in revenue, well on track to hit our $700,000 annual goal.
Anonymous GuideCX, Head of Marketing at Guide CX
4.8★
PPC Review from Anonymous
We’ve been working with Disruptive on a long-term PPC strategy, and they’re constantly optimizing campaigns and landing pages based on performance. They use Google Analytics to ensure accurate tracking, Unbounce for landing page testing, and run ads through Google and LinkedIn, with knowledgeable experts for each channel.
Jackie Arends Marketing Manager at USA Clean
4.8★
Digital Marketing Review from Jackie Arends
Disruptive Advertising is in charge of our online advertising, which includes PPC, social media marketing on Facebook, email marketing, and, more recently, Amazon marketing. They create content for the campaigns and manage them, create email templates, and automate [...] email marketing campaigns. Regarding our PPC efforts, we focus on Google Ads and Facebook Ads, and we recently started our Bing advertising efforts as well. Our ROAS is currently at about 4X5X. (Verified via email)
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
VerifiedVerified by the DesignRush team for authenticity and credibility.
5-Time SEO Agency of the Year. [Named 2024 SEO Agency of the Year by Search Engine Land]
HigherVisibility runs SEO through its proprietary Targeted Growth System®, a framework that starts with buyer intent, competitive gaps, and business objectives before keyword selection begins. The SEO company increasingly positions AI search visibility alongside traditional rankings...
Top Services:
SEO
Digital Marketing
Social Media Marketing
PPC
Advertising
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Location
Stamford, Connecticut
Number of Employees
50 - 99
Minimal Budget
$1,000 - $10,000
Portfolios Count
4 Projects Listed
HigherVisibility Services
SEO
Digital Marketing
Social Media Marketing
PPC
Advertising
Email Marketing
eCommerce
CRO
Web Development
Web Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Caliber Collision
BBQGuys
Warner Bros
Ebay
Orangetheory Fitness
Hotworx
Ziebart
Allied Van Lines
Newegg
Fitness 19
Data sourced from the agency's DesignRush profile
HigherVisibility Reviews & Testimonials
Michael Brumleve CEO at Brumleve Industries
5.0★
SEO Review from Michael Brumleve
We have used HigherVisibility now going on 3 years. Our SEO rankings and eCommerce sales have been fantastic over that time span. More than I could [have] anticipated. This team knows what they are doing in the complex SEO and PPC world and are a huge asset to us. 3 years ago, we had basically 0 online presence. Now, we are consistently ranking #1 on Google for our best-selling products. (Verified via email)
Jason Lewin CMO at American Paper Optics
5.0★
SEO Review from Jason Lewin
Have been working with [HigherVisibility] for years, and the quality of their work just keeps getting better. Always there when you need them. Would definitely recommend! (Verified via email)
Ed Stephens III Pastor at Golden Gate Cathedral
5.0★
Digital Marketing Review from Ed Stephens III
HigherVisibility provided solutions to our problems. They are reliable and effective. We love working with Gracie. You can’t beat stellar customer service.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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
Zero Gravity Marketing is a digital marketing agency located in Madison, Connecticut specializing in internet marketing services...
Top Services:
Digital Marketing
PPC
Content Marketing
SEO
Web Design
Show more
Location
Madison, Connecticut
Number of Employees
50 - 99
Minimal Budget
$1,000 - $10,000
Zero Gravity Marketing Services
Digital Marketing
PPC
Content Marketing
SEO
Web Design
Branding
Digital Strategy
Creative Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
WWE
Carrier Enterprise
Nardelli's
Furnished Quarters
Defibtech
AppSpace
Data sourced from the agency's DesignRush profile
Zero Gravity Marketing Reviews & Testimonials
Skippers Seafood Review from Google
5.0★
Skippers Seafood's Review Sourced from Google
Started working with ZGM a few years ago to boost my local foot traffic. I had SEO and PPC going at first but added an email campaign to focus on returning users and saw tremendous ROI. The team is exceptional, Chris Uzzo is so kind and transparent, and it helps that the agency is always so prompt with responses.I will continue to support this marketing agency and anyone looking for digital marketing, needs to reach out...NOW!
Emma Holt Review from Google
5.0★
Emma Holt's Review Sourced from Google
We have been working with Zero Gravity for several months now and cannot recommend them enough! Their support, suggestions and knowledge have helped immensely. Not only are we continually impressed by their skills but they are the friendliest and most approachable group I've got to work with.
Ryan Review from Google
5.0★
Ryan's Review Sourced from Google
As a relatively new company (almost two years established), we were at a loss for our marketing efforts. No matter what competitors did, we were always outmatched and outranked. I went to ZGM to help solidify a strong SEO strategy while boosting our paid campaigns by targeting competitors. I was amazed at how much I didn’t know and the results spoke for themselves. I couldn’t be happier to have hired their agency and would highly recommend anyone to invest in their digital marketing strategy. Since I’m in a competitive software industry, I thought it’d be impossible to rank but zgm helped get me higher in the search engines and our lead gen is skyrocketing
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews