Top 30 SEO Agencies
The Best of December 2025
Search engine optimization is a meticulous discipline that’s critical to a business’ overall digital marketing strategy. It is immensely important to businesses, regardless of industry, size, or niche as it allows them to build a strong, credible online presence. SEO agencies aim to help businesses improve their website’s performance on search engines by optimizing different technical elements of a website, including keywords, content, and links. Their primary goal is to ensure businesses stay relevant on search engine results — whether on the web or mobile browsers. They offer various services, including audience targeting, SEO reporting, and SERP rank improvement.
Hiring a dedicated search engine optimization agency is a great investment for a business's short-term and long-term success. Firms with effective SEO measures have a competitive advantage over their competitors who don’t have established efforts, as it ensures they have more organic traffic and online authority.
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List of the Best SEO Agencies in The World
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$1,000+10 - 49 employeesNew York, NYSEO company NuStream is in New York, New York; Philadelphia, Pennsylvania and Allentown, Pennsylvania. They provide Search Engine Optimization, Web Design, Digital Strategy, and Video Production and were established in 2010.Read More
Industries
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58291$5,000+10 - 49 employeesSurry Hills, AustraliaKlick Communications is a Digital Strategy company. Founded in 2008, their team provides Digital Strategy and Public Relations.Read More
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58292$5,000+10 - 49 employeesJena, GermanyContent Marketing company IronShark was founded in 2002. The team offers Content Marketing and Conversion Optimization.Read More
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58293$10,000+10 - 49 employeesRotterdam, NetherlandsDigital Strategy company GuiltyPeople is headquartered in Rotterdam, Netherlands. They offer Digital Strategy and Email Marketing.Read More
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58294$5,000+10 - 49 employeesProogresa is a Digital Strategy company. Located in Barcelona, Spain, the firm provides Digital Strategy and Mobile App Development.Read More
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58295$5,000+10 - 49 employeesNorth Sydney, AustraliaSiteSuite Website Design, a mobile app development company, focus on Mobile App Development and Web Development. They were established in 2000.Read More
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58296$5,000+10 - 49 employeesBerlin, GermanyXAVA Media GmbH is a web design company. Their small team is in Berlin, Germany and provides Web Design and UX/UI Design. The company was founded in 2010.Read More
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58297$5,000+10 - 49 employeesRoma, ItalyCantieri Informatici Srl is a Roma, Italy-based SEO company. The team specializes in Search Engine Optimization and Web Design.Read More
Industries
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58298$10,000+10 - 49 employeesKavala, GreeceDigital Strategy company Manbiz is located in Kavala, Greece. The team specializes in Digital Strategy and Web Design.Read More
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58299$10,000+10 - 49 employeesAmsterdam, NetherlandsLaunched in 1993, ICATT interactive media is an Advertising company. The small team specializes in Advertising and UX/UI Design.Read More
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58300$10,000+10 - 49 employeesNeo Psichiko, GreeceSteficon Greece is a Digital Strategy company. They were established in 2000 and specialize in Digital Strategy and Social Media Marketing.Read More
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58301$1,000+10 - 49 employeesHawthorn, AustraliaResolve is a social media marketing company. Located in Hawthorn, Australia, their small team provides Social Media Marketing and Web Design. The company was founded in 2011.Read More
Clients
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58302$5,000+10 - 49 employeesRoma, ItalyWeb development firm Next Adv was founded in 1996. The small team provides Web Development and Mobile App Development.Read More
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58303$10,000+10 - 49 employeesRotterdam, NetherlandsEstablished in 1997, Zicht is an Advertising company. The team focuses on Advertising and Conversion Optimization.Read More
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58304$10,000+10 - 49 employeesAthina, GreeceNelios is a branding company. The Athina, Greece-based agency was launched in 2008. Their team provides Branding and Content Marketing.Read More
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58305$5,000+10 - 49 employeesFrankfurt am Main, GermanyIntercontact advertising mbH, an Advertising company, was launched in 1998. The company provides Advertising and Logo.Read More
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58306$5,000+10 - 49 employeesFrankfurt am Main, GermanyWeb design agency 1xINTERNET was established in 2011. The team provides Web Design and E-Commerce Development and is located in Frankfurt am Main, Germany.Read More
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58307$5,000+10 - 49 employeesTorino, ItalySeolab Srl is a Digital Strategy company. Based in Torino, Italy, the team specializes in Digital Strategy and Search Engine Optimization.Read More
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58308$5,000+10 - 49 employeesTorino, Italy@Web Company is a Digital Strategy company founded in 2010. The team offers Digital Strategy and E-Commerce Development and is in Torino, Italy.Read More
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58309$5,000+10 - 49 employeesTorino, ItalyHeadquartered in Torino, Italy, Across is an Advertising company. Their services include Advertising and Digital Strategy.Read More
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58310$10,000+10 - 49 employeesParis, FranceJust Search France is a small Paris, France-based Digital Strategy company. The team specializes in Digital Strategy and Pay Per Click.Read More
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58311$5,000+10 - 49 employeesBerlin, GermanyInteractive tools GmbH is an user experience agency. Founded in 1997, the agency is located in Berlin, Germany. Their services include UX/UI Design and E-Commerce Development.Read More
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58312$5,000+10 - 49 employeesHamburg, GermanyLA RED GmbH is a social media marketing firm. Founded in 1998, the team offers Social Media Marketing and Search Engine Optimization. The company is headquartered in Hamburg, Germany.Read More
Industries
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58313$5,000+10 - 49 employeesDublin , IrelandDigital Strategy company Mediaworks Ireland is in Dublin , Ireland. They focus on Digital Strategy and Media Planning & Buying.Read More
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58314$5,000+10 - 49 employeesToronto, CanadaStarshot Marketing Group, a Content Marketing company, is located in Toronto, Canada. The team provides Content Marketing and Email Marketing.Read More
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58315$5,000+10 - 49 employeesMülheim an der Ruhr, GermanyJoin.media GmbH & Co. KG is a small user experience agency based in Mülheim an der Ruhr, Germany. The team specializes in UX/UI Design and Search Engine Optimization.Read More
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58316$5,000+10 - 49 employeesLaunched in 2012, Tekpro is a Digital Strategy company. The team focuses on Digital Strategy and E-Commerce Development.Read More
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58317$5,000+10 - 49 employeesTulsa, OKPhillips and Johnson Advertising Agency, a small SEO services firm, is based in Tulsa, Oklahoma. Their services include Search Engine Optimization and Web Design.Read More
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58318$5,000+10 - 49 employeesLille, FranceOctelio Conseil is an UX design agency launched in 2002. The company offers UX/UI Design and CRM consulting and SI, and is small.Read More
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58319$5,000+10 - 49 employeesVilleneuve-d'Ascq, FranceLemon Interactive is a small Villeneuve-d'Ascq, France-based user experience agency. Their services include UX/UI Design and Digital Strategy.Read More
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58320$1,000+10 - 49 employeesLillestrøm, NorwayOutSearching AS, a Conversion Optimization company, was launched in 2007. The small team provides Conversion Optimization and Search Engine Optimization.Read More
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