Search engine marketing companies aim to help businesses improve their online visibility through multi-faceted strategies like SEO and PPC management. With technology ever-evolving, firms in this field must adapt rapidly to trends and changes in consumer behavior. They often employ analytics to customize their approach and achieve measurable results for clients. Notably, the rise of artificial intelligence and machine learning is reshaping marketing practices, making it essential for companies to innovate constantly. As competition grows, staying ahead means companies must utilize the latest tools and techniques, appealing to businesses that seek sustainable growth and enhanced digital footprints.

The companies in this list range from small agencies with about 50 employees to larger firms exceeding 5,000 staff. They hail primarily from the United States and the United Kingdom, having been established between 1983 and 2014. Each agency specializes in critical areas such as SEO, PPC management, content marketing, and web development, ensuring targeted solutions are available. Their varied backgrounds reflect a blend of rich experience and modern marketing tactics, tailored for clients across multiple sectors, including eCommerce, healthcare, and professional services, enhancing their ability to meet specific market demands.

Continue reading to discover the top search engine marketing companies.

Top 21 Search Engine Marketing Companies

1. Searchbloom

• Website: searchbloom.com
• Ownership type: Private
• Headquarters: Draper, Utah, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2014
• Headcount: 11-50
• LinkedIn: searchbloom

Searchbloom is a private digital marketing agency based in Draper, Utah, founded in 2014. With a team of approximately 32 employees, the company specializes in search engine optimization (SEO) and pay-per-click (PPC) management services. They cater to a variety of industries, helping businesses enhance their online visibility and drive traffic through customized marketing strategies. Searchbloom's service offerings include local SEO, national SEO, eCommerce SEO, and PPC management, among others. The agency prides itself on a partnership approach, working closely with clients to ensure that their marketing strategies are tailored to meet specific business goals. Their commitment to transparency and measurable results has earned them recognition in the industry, including awards for their marketing initiatives. Searchbloom has not reported any funding, indicating a self-sustained growth model.

2. Disruptive Advertising

• Website: disruptiveadvertising.com
• Ownership type: Private
• Headquarters: Pleasant Grove, Utah, United States (USA)
• Employee distribution: United States (USA) 98%, Argentina 2%
• Founded year: 2012
• Headcount: 51-200
• LinkedIn: disruptive-advertising

Disruptive Advertising, founded in 2012 and based in Pleasant Grove, Utah, is a digital marketing agency that provides a wide range of marketing solutions tailored to enhance online presence and drive revenue growth for businesses. The agency offers services including SEO, paid search, lifecycle marketing, and creative strategies. With a team of approximately 144 employees, Disruptive Advertising emphasizes a data-driven approach to marketing, ensuring that their strategies yield measurable results. They have garnered a strong reputation in the industry, being recognized as the #1 most reviewed digital marketing agency on various platforms. Their focus on authentic partnerships with brands they believe in reflects a commitment to quality and effectiveness in their marketing efforts. Disruptive Advertising manages over $450 million in annual ad spend for clients, showcasing their capability to handle substantial marketing budgets and deliver impactful results. They have also been featured on the Inc. 500 list, further solidifying their position in the market.

3. iProspect

• Website: iprospect.com
• Ownership type: Corporate
• Headquarters: London, England, United Kingdom (UK)
• Employee distribution: United States (USA) 20%, France 14%, India 12%, Other 54%
• Latest funding: January 2006
• Founded year: 1996
• Headcount: 5001-10000
• LinkedIn: iprospect

iProspect is a corporate digital marketing agency based in London, UK, with a workforce of over 2,700 employees. Founded in 1996, the company has established itself as a significant player in the digital marketing industry, offering a wide range of services that include SEO, PPC, e-commerce marketing, and social media advertising. iProspect serves a variety of clients across multiple sectors, helping them improve their online presence through tailored, data-driven marketing strategies. The agency operates in 93 countries and has received recognition for its innovative approaches, including awards for its performance in search and advertising. Their focus on understanding consumer behavior and leveraging technology to optimize marketing efforts makes them a relevant choice for businesses seeking to enhance their search engine marketing capabilities.

4. Ignite Visibility

• Website: ignitevisibility.com
• Ownership type: Private Equity
• Headquarters: San Diego, California, United States (USA)
• Employee distribution: United States (USA) 91%, South Africa 5%, Other 3%
• Latest funding: February 2023
• Founded year: 2012
• Headcount: 201-500
• LinkedIn: ignite-visibility

Ignite Visibility is a digital marketing agency based in San Diego, California, founded in 2012. The company specializes in a wide array of services, including search engine optimization (SEO), email marketing, social media marketing, and paid media advertising. With a workforce of approximately 257 employees, Ignite Visibility caters primarily to businesses aiming to improve their online visibility and marketing effectiveness through customized strategies. The agency emphasizes measurable outcomes, utilizing proprietary tools like their Certainty software to forecast marketing performance. Ignite Visibility has garnered recognition in the industry, being named the top SEO company in the USA by Clutch and receiving multiple accolades for its workplace culture. Their innovative approach includes the recent launch of Generative Engine Optimization services, which focus on enhancing visibility in AI-driven search engines. This positions them well within the digital marketing sector, showcasing their adaptability to industry trends.

5. Hibu

• Website: hibu.com
• Ownership type: Corporate
• Headquarters: Cedar Rapids, Iowa, United States (USA)
• Employee distribution: United States (USA) 89%, United Kingdom (UK) 4%, India 3%, Other 4%
• Latest funding: March 2021
• Founded year: 1983
• Headcount: 1001-5000
• LinkedIn: hibu

Hibu Inc., founded in 1983 and based in Cedar Rapids, Iowa, is a digital marketing agency that provides integrated marketing solutions tailored for local businesses. With a workforce of approximately 4,500 employees, Hibu focuses on helping clients enhance their online presence through a variety of services, including web development, reputation management, and search engine marketing. They cater to a wide array of industries, such as automotive, home services, and professional services, and emphasize delivering measurable results through their proprietary platform. Hibu's approach combines advanced technology with a deep understanding of local business needs, allowing them to create customized marketing solutions that drive traffic and generate leads. Their commitment to client success is reflected in numerous testimonials and case studies showcasing significant improvements in online visibility and customer engagement.

6. SEO Inc

• Website: seoinc.com
• Ownership type: Private
• Headquarters: Carlsbad, California, United States (USA)
• Employee distribution: Pakistan 40%, United States (USA) 24%, India 11%, Other 26%
• Founded year: 1997
• Headcount: 51-200
• LinkedIn: search-engine-optimization-inc-

SEO Inc is a digital marketing agency based in Carlsbad, California, founded in 1997. The company specializes in search engine optimization (SEO), pay-per-click (PPC) management, and social media management, among other services. With a workforce of approximately 1037 employees, SEO Inc has established itself as a significant player in the digital marketing space. The firm has worked with a variety of clients, helping them improve their online visibility and drive traffic to their websites. Their approach includes detailed SEO audits, content marketing, and local SEO strategies, which are tailored to meet the specific needs of their clients. SEO Inc has also been recognized for its performance, being named a Clutch Top SEO Company and a finalist for SEO Agency of the Year. Their commitment to innovation is evident in their recent incorporation of AI-driven strategies to enhance SEO services. This focus on adapting to industry changes positions SEO Inc as a relevant and capable agency in the search engine marketing sector.

7. Thrive Internet Marketing Agency

• Website: thriveagency.com
• Ownership type: Private
• Headquarters: Dallas, Texas, United States (USA)
• Employee distribution: United States (USA) 76%, South Africa 11%, Canada 2%, Other 10%
• Founded year: 2005
• Headcount: 51-200
• LinkedIn: thrive-agency

Thrive Internet Marketing Agency, based in Dallas, Texas, is a private digital marketing agency that has been operational since 2005. With a workforce of approximately 202 employees, the agency specializes in a wide array of services aimed at improving online visibility and driving business growth. Their offerings include search engine optimization (SEO), pay-per-click (PPC) marketing, social media management, web design, and content marketing. Thrive has worked with clients across various industries, helping them achieve substantial increases in online traffic and engagement. The agency prides itself on its client-centric approach, emphasizing honesty and ethical practices in its operations. Thrive's portfolio includes numerous case studies that highlight their ability to deliver measurable results, making them a notable player in the digital marketing sector.

8. The SEO Works

• Website: seoworks.co.uk
• Ownership type: Private
• Headquarters: Sheffield, England, United Kingdom (UK)
• Employee distribution: United Kingdom (UK) 98%, Other 2%
• Founded year: 2008
• Headcount: 51-200
• LinkedIn: the-seo-works

The SEO Works is a digital marketing agency based in Sheffield, England, specializing in search engine optimization (SEO) and pay-per-click (PPC) services. Founded in 2008, the company has grown to employ between 51 and 200 professionals, primarily serving clients across the UK. The agency offers a range of services designed to enhance online visibility and drive customer engagement, including organic SEO, digital PR, content marketing, technical SEO, and local SEO. They also provide PPC management services, covering platforms like Google Ads and Amazon PPC. The SEO Works has worked with a variety of sectors, including healthcare, eCommerce, and professional services, showcasing their ability to tailor strategies to meet specific client needs. Their commitment to delivering measurable results has earned them several industry awards, further solidifying their reputation in the digital marketing space.

9. 360i

• Website: 360i.com
• Ownership type: Private
• Headquarters: New York, New York, United States (USA)
• Employee distribution: United States (USA) 86%, India 6%, United Kingdom (UK) 6%, Other 3%
• Founded year: 1998
• Headcount: 501-1000
• LinkedIn: 360i

360i is a New York-based digital marketing agency founded in 1998. The company specializes in search engine marketing and technology solutions tailored for online brands. With a workforce of approximately 327 employees, 360i focuses on enhancing the digital presence of its clients, which span various industries. Their services include search engine optimization (SEO), pay-per-click (PPC) advertising, and other online marketing strategies designed to drive traffic and improve visibility. 360i has established itself as a notable player in the digital marketing space, adapting to the evolving landscape of online marketing and technology. The agency's commitment to innovation and effective online strategies has made it a relevant choice for businesses seeking to improve their digital marketing efforts.

10. SEOValley Solutions Private Limited

• Website: seovalley.com
• Ownership type: Private
• Headquarters: Bhopal, Madhya Pradesh, India
• Employee distribution: India 95%, United States (USA) 3%, Pakistan 3%
• Founded year: 1999
• Headcount: 51-200
• LinkedIn: seovalley-solutions-pvt.-ltd.

SEOValley Solutions Private Limited, based in Bhopal, Madhya Pradesh, India, is a digital marketing agency that has been active since 1999. With a workforce of approximately 76 employees, the company specializes in search engine optimization (SEO), pay-per-click (PPC) advertising, and content marketing. SEOValley serves a variety of businesses, helping them enhance their online visibility and drive sales through tailored marketing strategies. The agency has successfully managed over 7,590 campaigns and has a client base that spans 59 countries. Their commitment to customer satisfaction is reflected in their high retention rates and numerous positive testimonials. SEOValley has also received recognition in the form of over 59 awards for their effective and ethical SEO services. They maintain a dedicated research and development team to stay updated with Google’s evolving algorithms, ensuring their clients remain competitive in the digital space.

11. Online Marketing Gurus

• Website: onlinemarketinggurus.com.au
• Ownership type: Private
• Headquarters: Crows Nest, New South Wales, Australia
• Employee distribution: Australia 77%, United States (USA) 4%, United Arab Emirates 3%, Other 16%
• Founded year: 2012
• Headcount: 51-200
• LinkedIn: online-marketing-gurus

Online Marketing Gurus (OMG) is a digital marketing agency based in Crows Nest, New South Wales, Australia, founded in 2012. With a team of over 200 professionals, OMG specializes in providing comprehensive marketing solutions, particularly in search engine marketing. Their services include search engine optimization (SEO), pay-per-click (PPC) management, and social media advertising, all aimed at enhancing online visibility and driving revenue growth for their clients. The agency has worked with a variety of businesses, helping them achieve measurable results through tailored strategies. OMG has received recognition for its performance, winning multiple awards in the digital marketing sector. Their approach is characterized by a strong emphasis on data analytics and evidence-based practices, ensuring that their strategies are effective and aligned with client goals.

12. WebFX

• Website: webfx.com
• Ownership type: Private Equity
• Headquarters: Harrisburg, Pennsylvania, United States (USA)
• Employee distribution: United States (USA) 91%, India 2%, Other 6%
• Latest funding: $4.3M, October 2021
• Founded year: 1996
• Headcount: 501-1000
• LinkedIn: webfxinc

WebFX is a digital marketing agency based in Harrisburg, Pennsylvania, founded in 1996. With a workforce of approximately 1,159 employees, the company specializes in a variety of services, including search engine optimization (SEO), pay-per-click (PPC) advertising, content marketing, and web design. WebFX aims to enhance the online presence of businesses and drive revenue through tailored, data-driven marketing strategies. The agency serves clients across multiple industries, providing customized solutions to meet specific business needs. In 2021, WebFX secured $4,287,500 in funding, which underscores its growth potential and commitment to innovation in the digital marketing field. Their proprietary platform, MarketingCloudFX, allows for comprehensive tracking and analysis of marketing efforts, further solidifying their position in the industry.

13. 3Q Digital

• Website: 3qdigital.com
• Ownership type: Private
• Headquarters: Chicago, Illinois, United States (USA)
• Founded year: 2008
• Headcount: 201-500
• LinkedIn: 3qdigital

3Q Digital, now part of DEPT®, is a digital marketing agency based in Chicago, Illinois, founded in 2008. With a workforce of over 500 employees, the company focuses on delivering comprehensive marketing solutions that include paid search, SEO, and data analytics. Their approach is centered on helping businesses enhance their online presence and achieve measurable growth through innovative digital strategies. 3Q Digital has established itself as a significant player in the digital marketing sector, managing over $3 billion in ad spend across various platforms. Their commitment to performance and strategy is evident in their extensive service offerings, which also include paid social, conversion rate optimization, and programmatic advertising. The agency's emphasis on data-driven decision-making and continuous optimization positions it well within the competitive landscape of search engine marketing.

14. Add People

• Website: addpeople.co.uk
• Ownership type: Corporate
• Headquarters: Altrincham, England, United Kingdom (UK)
• Employee distribution: United Kingdom (UK) 98%, Other 2%
• Latest funding: May 2013
• Founded year: 2002
• Headcount: 201-500
• LinkedIn: add-people

Add People is a digital marketing agency based in Altrincham, England, established in 2002. The company specializes in a range of services, including search engine optimization (SEO), pay-per-click (PPC) advertising, social media marketing, and website design. With a workforce of approximately 287 employees, Add People primarily serves small to medium-sized businesses across various sectors, helping them enhance their online visibility and drive conversions through customized marketing strategies. Their commitment to improving clients' digital presence is evident in their extensive service offerings, which are designed to meet the unique needs of their clientele. The agency has not reported any funding since its inception, indicating a self-sustaining business model that relies on its operational revenue.

15. SEO.com

• Website: seo.com
• Ownership type: Corporate
• Headquarters: Harrisburg, Pennsylvania, United States (USA)
• Employee distribution: Pakistan 42%, United States (USA) 37%, United Arab Emirates 11%, Other 10%
• Latest funding: November 2023
• Founded year: 2007
• Headcount: 501-1000
• LinkedIn: seo.com

SEO.com is a digital marketing agency based in Harrisburg, Pennsylvania, founded in 2007. The company specializes in search engine optimization (SEO) and offers a variety of services including managed SEO, pay-per-click (PPC) management, and content marketing. With a workforce of around 180 employees, SEO.com operates with a strong emphasis on data-driven strategies to enhance clients' online presence and drive revenue. The agency serves a wide range of industries, tailoring its marketing solutions to meet specific client needs. SEO.com is powered by WebFX, a well-known digital marketing agency, which adds credibility to its operations. The company has not reported any recent funding, indicating a stable operational model without external financial backing.

16. OuterBox, Inc.

• Website: outerboxdesign.com
• Ownership type: Private Equity
• Headquarters: Copley, Ohio, United States (USA)
• Latest funding: June 2022
• Founded year: 2004
• Headcount: 51-200
• LinkedIn: outerbox-solutions-inc-

OuterBox, Inc., based in Copley, Ohio, is a digital marketing agency founded in 2004. The company specializes in search engine optimization (SEO), pay-per-click (PPC) management, web design, and email marketing. With a team of over 240 digital marketing experts, OuterBox has developed a reputation for delivering effective marketing strategies that help clients enhance their online presence and drive sales. They cater to a wide array of clients, from small startups to large Fortune 500 companies, showcasing their ability to adapt to different business needs. Their services include eCommerce SEO, lead generation SEO, and various PPC management options, indicating a strong focus on performance marketing. OuterBox has also been recognized for its contributions to the industry, including accolades for their SEO services. The company emphasizes building long-term relationships with clients, aiming for mutual growth and success in the digital space.

17. HawkSEM

• Website: hawksem.com
• Ownership type: Private
• Headquarters: Los Angeles, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2006
• Headcount: 51-200
• LinkedIn: hawksem

HawkSEM is a digital marketing agency based in Los Angeles, California, founded in 2006. The company specializes in search engine marketing (SEM) and optimization services, providing customized marketing strategies to businesses across various sectors. With a team of experts and advanced technology, HawkSEM aims to enhance clients' online visibility and drive higher returns on investment. Their service portfolio includes pay-per-click (PPC) management, search engine optimization (SEO), content marketing, social media marketing, and conversion rate optimization. HawkSEM has worked with a range of industries, including SaaS, healthcare, education, and finance, showcasing their adaptability and expertise. The agency is recognized as a Google Premier Partner and a Microsoft Advertising Partner, underscoring their standing in the digital marketing field. HawkSEM's innovative approach, exemplified by their proprietary ConversionIQ system, allows for comprehensive data integration and campaign optimization, further solidifying their role in the search engine marketing industry.

18. SEO Brand

• Website: seobrand.com
• Ownership type: Private
• Headquarters: Boca Raton, Florida, United States (USA)
• Employee distribution: United States (USA) 64%, Pakistan 19%, Bangladesh 4%, Other 13%
• Founded year: 2006
• Headcount: 51-200
• LinkedIn: seo-brand

SEO Brand is a digital marketing agency based in Boca Raton, Florida, established in 2006. With a workforce of approximately 92 employees, the company specializes in search engine optimization (SEO), pay-per-click (PPC) management, content marketing, and web development. They cater to a variety of clients, particularly in the e-commerce and luxury sectors, helping businesses improve their online visibility and achieve growth through tailored marketing strategies. SEO Brand employs a data-driven approach, focusing on measurable outcomes and return on investment for their clients. Their service portfolio includes organic search strategies, paid advertising campaigns, and comprehensive web development solutions, making them a versatile player in the digital marketing space. The agency has not reported any funding, indicating a self-sustained growth model since its inception.

19. WordStream by LocaliQ

• Website: wordstream.com
• Ownership type: Corporate
• Headquarters: Mclean, Virginia, United States (USA)
• Employee distribution: United States (USA) 97%, Canada 3%
• Latest funding: $130.0M, May 2018
• Founded year: 2007
• Headcount: 201-500
• LinkedIn: wordstream

WordStream by LocaliQ, founded in 2007 and based in McLean, Virginia, is a digital marketing agency that focuses on providing online advertising solutions tailored for small businesses and marketing agencies. The company offers a suite of tools designed to improve advertising performance, including performance graders for Google and Facebook ads, a free keyword tool, and a website grader. These tools help businesses identify and rectify costly mistakes in their online advertising strategies, optimize their keyword usage, and enhance their overall digital presence. With a workforce of around 89 employees and a strong presence in the U.S. market, WordStream has served approximately 499,000 businesses, delivering millions of leads and generating significant revenue for its clients. The company has also secured $130 million in funding, reflecting its growth trajectory and the trust placed in its services by investors.

20. SocialSEO Inc

• Website: socialseo.com
• Ownership type: Private
• Headquarters: Colorado Springs, Colorado, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1996
• Headcount: 51-200
• LinkedIn: social-seo-inc

SocialSEO Inc, now operating under the name Intero Digital, is a digital marketing agency based in Colorado Springs, Colorado. Founded in 1996, the company has built a reputation for providing a wide array of services that include search engine optimization (SEO), pay-per-click (PPC) advertising, social media marketing, and web design. With a team of approximately 59 employees, SocialSEO has been instrumental in assisting businesses to enhance their online presence and drive sales through effective digital marketing strategies. The agency emphasizes a client-centric approach, focusing on tailored solutions that meet the unique needs of each business. Their commitment to transparency and regular reporting ensures that clients are kept informed about the progress and effectiveness of their marketing efforts. SocialSEO has also received recognition in the industry, being rated highly by clients and industry observers alike, which further underscores their relevance in the digital marketing space.

21. RevLocal | A Hibu Company

• Website: revlocal.com
• Ownership type: Private
• Headquarters: Westerville, Ohio, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2010
• Headcount: 201-500
• LinkedIn: revlocal

RevLocal | A Hibu Company, founded in 2010 and based in Westerville, Ohio, is a digital marketing agency dedicated to helping local businesses and multi-location brands improve their online presence. With a workforce of approximately 320 employees, RevLocal specializes in a range of services including local search marketing, organic SEO, paid advertising, and website development. Their approach is centered on creating customized marketing strategies that address the unique challenges faced by their clients across various industries such as health and wellness, automotive services, and retail. RevLocal's marketing platform allows clients to track their results and manage their marketing initiatives effectively, showcasing their commitment to transparency and client success. The company has positioned itself as a partner for businesses looking to enhance their visibility in an increasingly competitive digital marketplace.

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