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Businesses all over the globe are utilizing SEO to attract customers, drive web traffic and boost sales. If you’re looking to capitalize on the power and reach of SEO, it pays to work with the best SEO companies. In this guide, we’ll explore the biggest SEO companies in the world, providing information about what a great agency offers and offering advice to help you find the best firm to take your business to the top.

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Biggest SEO Companies in the World

Search engine optimization has the potential to revolutionize and supercharge digital marketing campaigns, but not all SEO companies are created equal. As a business owner, it’s beneficial to join forces with the top SEO agencies. If you’re looking for inspiration, here is a list of the leading contenders:

AAM Consultants

AAM Consultants is an experienced and award-winning SEO services company based in Lahore, Pakistan, with an office in Willenhall, U.K. The company, founded in 2016, has more than 50 employees and provides SEO, digital marketing, graphic design, and web development services at very affordable price.

Their mission is to provide easy and enjoyable solutions to their honorable clients. AAM Consultants quickly established a reputation for high-quality work at a reasonable price. The talented and professional team of AAM Consultants can provide you with exceptional and timely services. They offer 100% satisfaction and money-back guarantee. So what you are waiting for? Contact them now and make your business stand out in a crowd of competitors.

aam consultants

Ignite Visibility

The leading SEO company on Clutch, Ignite Visibility specializes in SEO and PPC. Launched in 2013 and based in San Diego, California, Ignite Visibility is a multi-award winning full-service digital marketing agency that focuses on growing businesses online. This is an agency that works with some of the world’s leading brands and it is a 4-time Inc 5000 agency. Founded by John Lincoln and Krish Coughran, a pair with over 30 years of industry experience, the company now employs over 90 full-time members of staff and boasts over 160 clients.

Ignite Visibility

Straight North

A results-driven digital marketing agency based in the US, Straight North has offices in Austin, Baltimore, Charlotte, Chicago, Denver, Los Angeles, New York and Washington D.C. A full-service digital marketing company, Straight North has been helping businesses to generate leads since 1997. The agency employs more than 100 members of staff, and to date, the team has created more than 2.3 million validated leads. In addition to targeted SEO campaigns, Straight North also offers PPC management, web design, email marketing, graphic design and display advertising, working with clients across a diverse range of sectors from tourism and agriculture to real estate, retail and healthcare.

Straight North


Boasting more than 200 positive client reviews, WebFX is a marketing powerhouse, with over 6 million validated leads under its belt. WebFX has an experienced team, which works with clients to drive expansion and achieve targeted objectives using a combination of tried and tested methods and cutting-edge technology. The expansive team has over 275 members and the agency has an impressive client retention rate of 91%. The company was established in 1995, and over the years, it has grown rapidly, using innovative techniques and partnering with tech giants, including Google and Facebook, to offer clients the opportunity to benefit from cutting-edge technology.



Based in the UK, with clients all over the world, FatJoe is the leading SEO company for backlinks services. Founded in 2012, the company has expanded significantly, adding new services to provide customers with an array of scalable SEO solutions. With an overall rating of 4.9 out of 5.0 and a recommendation rate of 97%, FatJoe’s services are used by more than 5,000 SEO agencies and marketing teams. In addition to the hugely popular blogger outreach service, clients can also take advantage of niche edits, content writing, press release distribution and infographic promotion. The core team is supported by over 100 members across the globe.


SEO Brand

A renowned SEO agency, which has over 15 years of experience in helping businesses to boost sales and generate high-quality leads, SEO Brand offers a raft of SEO, social media and paid advertising services. SEO Brand has a tried and tested process in place, combining proven SEO techniques with custom development, graphic design and branding to elevate online profiles, enhance brand image and boost customer acquisition. Boasting an impressive collection of awards, SEO Brand has an expansive client base, which features leading brands and household names such as LG, Mont Blanc, BMW and Giorgio Armani.

SEO Brand


Widely regarded as one of the top SEO agencies in the US, SocialSEO offers SEO, social media marketing, PPC, email marketing and video production services. The experienced team works to solve common problems, identifying effective solutions and building on successful templates and case studies to create custom-made, targeted strategies for each client. Based in Colorado Springs, SocialSEO has featured on many of the leading news channels in the US and it boasts an impressive portfolio bursting with high-profile, international brands. SocialSEO prides itself on being a native SEO agency and the team prioritizes customer service, underlining the importance of getting to know each client and understanding key objectives.


Pearl Lemon

An award-winning SEO company based in London, UK, Pearl Lemon has over 200 positive reviews and an ever-expanding portfolio. Pearl Lemon has been recognized by leading platforms, including Clutch, Agency Spotter and Design Rush and the company’s founder, Deepak Shukla, has featured in SEMRush, Woorank, the Search Engine Journal and Digital Olympus. Pearl Lemon specializes in SEO, offering bespoke packages centered on local SEO, SEO audit, WordPress SEO and E-commerce SEO. The agency has clients both in the UK and overseas, with offices in Manchester, Cardiff, Glasgow and San Francisco, as well as the London base.

Pearl Lemon


Seoplus+ is one of the top-rated SEO companies in Canada. Working with clients across Canada and the US, seoplus+ boasts a Google review rating of 4.9/5 and a client retention rate of 90%. Clients can take advantage of a broad spectrum of digital marketing services, including SEO, PPC management, social media marketing, content writing and promotion and web design and development. The small but experienced team prides itself on offering customer-focused services, creating customized, data-driven strategies, which respond to individual objectives and targets.


SEO Services Australia

Famed for its local SEO services, SEO Services Australia specializes in working with Australian businesses and organisations to increase traffic, convert leads and supercharge sales. The SEO Services Australia team works with clients across several industries, offering a wide range of services. In addition to SEO and local SEO strategies, the agency also provides web design and development, email marketing, PPC, social media and content marketing services. SEO Services Australia brands itself as a world-class SEO agency that offers small business prices.

SEO Services Australia

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Biggest SEO Companies in the World

Qualities of a good SEO company

SEO Concept with Laptop and Icons

If you took a moment to search for SEO services, you would be bombarded by results and adverts, so how do you go about narrowing down the options? With competition for clients fierce, it’s important to consider what a good SEO company should offer and to take your time to find the best agency for your business. When you invest in digital marketing services, you want to enjoy peace of mind that you’ve made the right decision and to reap the rewards of working with an experienced team that is passionate about helping you succeed. Here are some qualities to look out for:

●     Experience and professionalism

SEO is not a silver bullet, and not every campaign achieves incredible results. When you’re searching for an SEO company, look for a team that has experience and choose a professional agency, which has the track record to back up claims and promises. If a company has excellent results and you’re impressed with the way team members communicate and interact with you, these are positive signs.

●     A good reputation

Reputation is everything when it comes to SEO and putting your business or organization into the hands of a marketing agency. You want to be able to trust the team you’re working with to improve results and to showcase your brand in the best possible light. Look for an agency with a large number of positive reviews and high rating and retention scores, and take a moment to read reviews and testimonials. When you read comments from other clients, this will give you a better insight into how the agency functions and the perks and benefits it offers than simply reading an ‘About Us’ page. A good reputation indicates that you are selecting a reliable, dependable company that is also capable of achieving results.

●     Great communication

Communication is critical when outsourcing and hiring an agency to take care of SEO on your behalf. As a business owner, you want to be able to contact team members if you have questions or queries, and it’s also crucial to be able to share ideas and thoughts. Look for an agency that interacts with clients and builds strong relationships. It’s important that you can provide feedback and that you feel confident that members of staff understand your objectives and requirements. Every customer should feel valued, and it should be easy to get in touch with your point of contact.

●     A complete team of writers, marketers and SEO specialists

Achieving results with new digital marketing strategies and campaigns is not easy, and it requires skilled individuals to work together seamlessly. Efficient, cohesive teams can make all the difference. If you’re looking to hire an agency, it’s beneficial to focus your search on companies that have complete teams, which comprise writers, marketers and SEO specialists. These individuals come together, sprinkling their magic to design and implement campaigns that deliver on every level.

●     Plans and strategies

Success in the world of search engine optimization is far from guaranteed, and every project is unique. Good SEO companies should devote time and energy to drawing up individual, tailored plans and strategies for each customer. The plan should align with key objectives, target audiences and budgets. Working to a plan is crucial to optimize results, prevent mistakes and delays and improve ROI. When you work with an agency, you want to have confidence that there are strategies in place to maximize the chances of hitting your targets.

●     Transparency and understanding your goals

It is essential that clients trust the agencies and individuals they work with. As a business owner, you want to ensure that you are investing in a transparent, honest, reliable agency team, which will work tirelessly to help you achieve your goals. Every client is unique, and some customers will have very different aspirations and objectives to others. The people you liaise with should always take the time to get to know you, to discuss your targets in detail and to figure out plans and create strategies based on your needs and goals. Transparency is critical, not just so that you feel you’re getting value for money, but also so that you can trust the employees you interact with to provide you with accurate information and progress reports.

●     Deliver results

For many company owners, the priority when choosing an SEO agency is delivering results. When you pay money for a service, you expect to reap the rewards and to see a difference. Before you sign any contracts or start paying for a package of digital marketing services, ask to view case studies and testimonials, look through portfolios and analyze facts and figures. If an agency has achieved success with many other clients, this is a good sign that the team could also help you attract more business and boost leads, sales and profits.

Questions you should ask before hiring an SEO company

Questions you should ask

Hiring an SEO company is a big step for business owners, and it’s vital to make the right decision. There are myriad agencies out there, and you want to ensure that you choose the right company. Take your time to gather information, to compare different packages and prices and to get to know each team better. You want to be able to make a well-informed decision, and it’s worth spending time researching, meeting with representatives and mulling over offers before you proceed. Here are some questions you should ask before hiring an SEO company:

●     How much does SEO cost?

Every client has a budget, and some SEO services will cost more than others. Before you sign on the dotted line or part with any money, it’s essential to ask about prices and packages, to compare quotes and to make sure you understand what you are getting for your money. The lowest price is not necessarily the best, and it’s wise to focus your search on finding an agency that offers outstanding value for money. If you have a budget in mind, let companies know and see what they can offer. It’s better to pay slightly more for services provided by a reputable agency that has a fantastic track record.

●     In which industry sectors do you specialize?

The industry in which you operate can influence everything from your targets to your ideal buyer, so it’s advantageous to choose an agency that has experience in working with clients in the same sector. Look for an SEO company that has a proven track record in your sector.

●     What CMS does your SEO team prefer to work on?

Before you hire an SEO agency, it’s always useful to collect information about how the team is going to go about drawing up and implementing strategies and campaigns to boost results. One factor that might be of interest to you is the CMS (content management system) the agency uses. You might have a preference, or you might want to know which system is used so that you know whether the team has experience in the CMS you are used to utilizing.

●     How many people will be working for my website optimization?

When you are researching agencies and comparing offers from different SEO companies, it’s understandable to want to gain an insight into what is going to happen once you’ve come to an agreement and work begins. You want to ensure that your project is a priority and that the agency provides sufficient resources to achieve your objectives. It’s worth asking how many people are going to be working on your website optimization before you make a final decision. You may prefer to opt for an agency that is committing more members to the cause.

●     How do you choose the keywords?

Choosing keywords is an integral part of drawing up targeted SEO strategies, so it’s natural to take an interest in the methods, technologies and tools used to select keywords. Ask questions, raise queries and make sure you have all the information you need before you hire an agency.

●     Do you currently work with any of our competitors?

Every business faces competition. Whether you run a medical practice, a clothing brand or a real estate agency, you’ll need to persuade customers that you are the best option. It may be more difficult to do this if the SEO agencies you’re considering are already working with your competitors.

●     What do you know about our industry?

Business owners and marketing teams from all kinds of sectors and industries can benefit from search engine optimization, but there are key differences when considering different industries. As a company owner, you want to ensure that the team you work with understands the sector, the unique challenges that come with interacting with customers within the industry and the best ways to achieve results. It is beneficial to choose an agency that has industry-specific experience and a proven track record within your sector.

●     How will you optimize our content?

SEO is not a miracle, and it’s impossible to achieve results without carefully-curated plans in place. There are various techniques and tools that can be used to optimize content and increase traffic. At the beginning of the conversations you have with prospective teams, ask questions about how they work and what kinds of methods they plan to use. It might not be possible to provide specific answers, for example, where links are going to come from, but the representatives should be able to provide information about queries, such as those related to the quality of backlinks.

●     How many pages of the website will you optimize initially?

When you launch a new SEO campaign with an agency you’ve recently hired, you want to have an idea of what is happening, when. Ask questions about time-frames, how many pages of the website will be optimized initially and when changes or modifications will be made. It’s helpful to be aware of plans and to understand what to expect once you sign a contract or agree to pay for a package of services.

●     How many backlinks can we expect per month?

Backlinks are commonly used to improve search ranking and enhance the quality of articles and features. When you’re trusting an agency to optimize your content to boost traffic and generate leads, it’s important to ask questions about backlinks. You might want to know how many backlinks you can expect per month and it’s also useful to gather information about the quality of backlinks. A backlink to a trusted, high-profile source is worth a lot more than low-quality backlinks.

●     What sort of ranking increases can we expect?

This is the question that is likely to be on the lips of everyone who is looking to hire an SEO agency. It’s understandable to want to know what you can expect in terms of results. You want to ensure that when you pay money for a service, your business will benefit. When you meet with company representatives or agency owners, don’t be afraid to ask about ranking increases and the changes you can expect to see if you choose to hire them.

●     How often will you be sending reports?

The best SEO companies will keep their clients in the loop and track progress continually. Sending reports is an excellent way to inform customers of changes in ranking and traffic increases, and it enables clients to see what is happening and the difference a new campaign or strategy is making. Most companies offer monthly reports, which cover web activity, lead conversion and search ranking. If you would rather receive reports more or less frequently, ask the agency if this is possible before you make a decision. You can also discuss key metrics that you want to include in the updates.

What to expect from an SEO company

What to expect from an SEO company

If you’re a business owner, and you’ve decided that you want to hire an SEO company, it’s helpful to be aware of what you should expect. If you’ve never worked with an external SEO agency before, you might be wondering where to set your expectations. It can be easy to get carried away and imagine sales soaring in a matter of days, but it’s beneficial to have realistic targets and goals. As a general rule, a good SEO company should provide:

●     Research and recommendations

A leading SEO company with a good track record will conduct extensive research before drawing up plans for a strategy for your business. Experienced teams will be able to suggest ideas and make recommendations based on your current strategy, your results and what you hope to achieve in the future. Every client should be treated as an individual. There is no one-size-fits-all solution for SEO.

●     Initial website SEO audit

A website audit provides a vast amount of information for SEO experts, and it enables them to see what they are working with, identify weaknesses and highlight areas for improvement. If your website is underperforming, the team will use the audit to address problems, enhance performance and boost conversion rates. It’s always beneficial to analyze websites before suggesting changes and adaptations.

●     Keyword research and content optimization

Keyword research is critical for improved SEO results. The team you hire will embark upon thorough research to identify the best keywords and select the most effective optimization tools and techniques. Research is essential because different clients have different goals and objectives, and different keywords have varying levels of popularity and competition. The findings of research will inform the content strategy and help the team outline the best keywords and optimization methods.

●     Quality backlinks

Not all backlinks are created equal, and it’s important to ensure that the agency you hire will offer high-quality backlinks. You want your content to link to reputable, reliable sources and resources, which are respected by the audience and search engines. A good SEO company will always strive to provide clients with the best quality backlinks.

●     Website monitoring and SEO reporting

SEO is not a service that should be provided on a one-off basis. Monitoring should be continual, and activity should be reported on a regular basis. Website monitoring can help to highlight weak points and provide useful information, which teams can utilize to improve results. Reports are compiled using data and they help the client to see what is happening in terms of traffic and lead generation and conversion.

●     Transparency and regular communication

If you hire an SEO agency, you should be able to communicate with the team if you have questions, the company should provide regular updates with how the campaigns are running and you should be able to trust that the information that is passed to you is accurate and reliable.

●     Weekly/monthly progress reports

Progress reports are important for clients and agencies. A top SEO agency will send customers weekly or monthly progress reports, which outline activities and include data related to traffic, page visits, search ranking and lead conversions.


The biggest SEO companies in the world are capable of turning fortunes around and enabling businesses from all sectors to attract new customers and generate and convert more leads. It can be difficult to choose an SEO company with so much competition around. As a business owner, it’s wise to take your time to consider different quotes and SEO service packages and to research extensively. Look for an agency that has an excellent reputation, a fantastic track record, experience within your industry, outstanding results and customer service and support options. A leading SEO company should treat every client like a VIP, as well as providing targeted, tailored techniques, which are proven to work.

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