Best SEO Companies: 2021 List of Top SEO Agencies

Finding the best SEO company to drive organic traffic, revenue, and leads to your website is no easy task. Even the best SEO companies who come well recommended from a trusted source will have strengths and weaknesses, industry experiences, and areas of specialty. At OuterBox, our team of Search Engine Strategists, Analysts, and Specialists wouldn't show up for work if they didn't believe we were the best SEO agency on the planet - and we wouldn't have it any other way. Talk to the Best SEO Company


We have an award-winning SEO team and in-house search marketing team.
That's what makes OuterBox one of the best SEO companies in the USA.

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SEO Budget Consultation

Schedule a phone call with us to discuss your SEO goals, budget, and needs. We'll determine if OuterBox or another SEO company is best for you.

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eCommerce SEO Experts

If you're an eCommerce company, you're in the right place. Since 2004 we've been eCommerce web design, development and marketing experts.

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Full SEO Campaign Transparency

We'll discuss the pros and cons of each company, your current SEO landscape, and guide you in the right direction. Our goal is top search engine rankings.

The truth is, the best SEO companies sometimes turn away potential clients if the relationship isn't poised for mutual success. If we can tell your business isn't the right fit for OuterBox, we'll provide you with our best recommendations for an SEO firm that makes sense for you. Our goal as a leader in the SEO services industry is to build long-lasting relationships that deliver increasing ROI and profit margins, which benefits us by word of mouth. So, with that being said, check out our list of the best SEO companies to work with!

The Best SEO Agencies: View Our Top Rated SEO Companies - June 2021

OuterBox SEO Company
  • OuterBox SEO

  • 1-866-647-9218
  • Akron, OH

If you're looking for a USA based SEO agency, OuterBox is a great option. With industry-leading eCommerce experience, OuterBox has dominated search results for clients across all major shopping platforms including Shopify, WooCommerce, Magento, BigCommerce and more. If boosting online sales is what you need, talk to the OuterBox team today.

GrowthBar SEO
  • GrowthBar


If you're looking for the best SEO tool, created by some of the best SEO experts at Growth Marketing Pro, GrowthBar is our #1 pick. GrowthBar gives you instant access to critical SEO data points about any website and unlocks the growth channels and keywords that are working for them. The tool allows you to explore best performing keywords, domain authority, backlink data, page word count, Facebook ads and more. It also has a dashboard where you can track your keyword rankings and spy on your competitors.




3 Media Web SEO company
  • 3 Media Web

  • 866-342-8510
  • Hudson, MA
Titan Growth company logo
  • Titan Growth

  • 858-423-7206
  • San Diego, CA
Straight North
  • Straight North

  • 855-388-4992
  • Austin, TX
SEO Brand company logo
  • SEO Brand

  • 800-262-5023
  • Boca Raton, FL
SEO Inc company logo
  • SEO Inc.

  • 760-929-0039
  • Carlsbad, CA
High Visibility Top SEO Company
  • Higher Visibility

  • 901-672-7243
  • Cordova, TN
Ignite Visibility Best SEO Company
  • Ignite Visibility

  • 619-752-1955
  • San Diego, CA
WebFX SEO agency logo
  • WebFX

  • 888-601-5359
  • Harrisburg, PA

Best eCommerce SEO Companies

OuterBox SEO Company
  • OuterBox SEO

  • 1-866-647-9218
  • Akron, OH
Straight North
  • Straight North

  • 855-388-4992
  • Austin, TX
Snap SEO Agency
  • Snap SEO Agency

  • 763-703-1597
  • Minneapolis, MN

Best Small Business SEO Companies

OuterBox SEO Company
  • OuterBox SEO

  • 1-866-647-9218
  • Akron, OH
R2 integrated seo company
  • R2 Integrated

  • 410-327-0007
  • Baltimore, MD

Best Law Firm SEO Companies

OuterBox SEO Company
  • OuterBox SEO

  • 1-866-647-9218
  • Akron, OH
justia seo company
  • Justia

  • 888-587-8421
  • Mountain View, CA
Get a Quote from a Top SEO Company

If you'd like to discuss your project over the phone, call us at 1-866-647-9218.
We're open Monday through Friday, 9-5 EST.

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Learn more about choosing a leading SEO company

    • SEO Pricing & Cost Guide

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      Many SEO's claim to offer guaranteed rankings. They'll say you "only pay if you get results". So, how does this work and can anyone really offer guaranteed SEO results?


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Our In-House SEO Team

With a staff of more than 75 digital marketing professionals in Akron, OH, we have SEO specialists and designers/developers ready to help with your project. We also offer other marketing services such as pay per click management, Google Ads management, and other internet marketing offerings. Give us a call and we'll talk over your goals. We understand your business is unique and will develop a marketing plan to suit.

OuterBox SEO Company Office

How to Choose an SEO Company

Choosing a reliable SEO company is an overwhelming prospect. If you're a marketing director, you know it's quite easy to get lost in a sea of competing digital marketing agencies and SEO firms, with more popping up every day as the SEO industry continues to flourish and attract more professionals.

Here's what to look for from an SEO company:

  • Experience within your industry/vertical: This is not always necessary but can be helpful.
  • Proven results: A reputable SEO company should have no problem providing examples of their work, case studies, etc.
  • Ability to provide other related services: OuterBox offers web design, development, PPC services, etc., all under one roof. It can be quite beneficial to have one company handle all of these services.
  • Client testimonials: Any reputable company should have no problem providing a few positive testimonials from existing clients.
  • A well-designed website: Look for an SEO company with some existing SEO rankings of their own. Ask the SEO company you are considering to tell you about their SEO efforts on their company website.
  • A SEO focus: Be sure to work with a true SEO firm and not an agency that offers SEO services on top of their other main offerings. If they are a social media marketing company or PR firm, its better to not engage in an SEO campaign with them. Leave SEO to the true SEO professionals.

seo company rankings

In the example above, you'll see the OuterBox website brings in organic traffic worth over $300,000 per month and has been on a consistent upward trend.

What does a successful SEO campaign look like?

Many bad SEO companies will try to paint a pretty picture that simply doesn't exist while you wait for tangible results. If your SEO company is constantly giving you excuses, remember that SEO is about your ROI. Your SEO strategy should be clear and you should understand where the agency is taking you.

This is what you should see from a successful SEO campaign:

  • Increased Keyword Rankings: Are your target keywords improving?
  • Increased Organic Traffic: Does the analytics show a significant increase in organic traffic as a result of those keyword ranking improvements?
  • Increased Organic Conversions: Is the increase in organic traffic qualified? If so, you better see a significant increase in organic conversions!
  • Increased Organic Sales & Revenue: If your site is eCommerce, your ultimate ROI can be broken down to organic revenue. If your total organic revenue isn't improving at a rate that can justify your monthly SEO spend, it's likely time to reconsider.

Watch "How to Measure Your SEO Campaign Success":

What a Successful SEO Campaign Doesn't Look Like

  • Immediate #1 rankings: Beware! For valuable keywords, you aren't going to see immediate results. SEO takes time, so immediate results are typically temporary and will likely end up hurting your website down the road if nefarious tactics were used to achieve said rankings. For instant results in search engines like Google, PPC advertising is the answer. Learn about Google Ads Manager services from OuterBox.
  • Irrelevant Keyword Ranking Improvements: Watch out for companies that string you along by improving rankings and traffic for low-competition, slightly irrelevant keywords. Be sure to approve a master keyword list of terms that the SEO company will work to improve. They should provide monthly search volumes and other pertinent data to help you make an informed decision.
  • Declining organic traffic and conversions: At the end of the day, if your organic traffic and conversions/sales/revenue are not increasing, your SEO campaign may not be working as you hoped. Of course, SEO is a long-term strategy, and it does often take several months to start seeing positive results.
  • They talk about things other than SEO: At the end of the day, if your organic traffic and conversions/sales/revenue are not increasing, your SEO campaign may not be working as you hoped. Of course, SEO is a long-term strategy, and it does often take several months to start seeing positive results.

As SEO experts, what does our proven search marketing process look like?

It all begins with planning. SEO companies who jump into optimizing title tags, content, products, or any part of the website before doing proper research and SEO planning, could be doing more harm than good.

Performing an SEO audit - An audit of your website should be done at the beginning of your SEO campaign to review all elements and be sure there are no glaring issues. The audit may be different if you're running an local SEO campaign compared to an eCommerce campaign, but should offer a road-map and a strategy forward after completed. Often audits will touch on SEO content, looking at blog posts, articles and other ongoing content needs. Also, your agency should use Google Analytics to track your conversion rate and should be able to offer initial ideas for conversion rate optimization. Throughout your campaign A/B testing can be performed, which is the process of running tests on your website to boost conversion rate, giving you a higher return on investment from SEO efforts. If your agency also offers PPC services, they may include general search engine marketing recommendations, as SEO and paid search often goes hand-in-hand.

After completing your audit, our expert SEO team has a much better idea of what an ongoing campaign will need to consist of to be a successful endeavor. We will work to determine the "low hanging fruit", or changes that can be made to the website easily that we know will boost rankings quickly. Identifying these areas will allow for your campaign to have success sooner than later, which helps you prove a positive return on your marketing investment in a shorter time-frame. Certain task may require website design or web development services, which we also offer in-house or can coordinate with your current website development team. Our developers are versed in SEO best practices so that all code written is SEO friendly.

As we continue with the campaign, we will develop and continue to refine a customized SEO plan that focuses on your goals, needs, and more based on what is driving results for your business. Each campaign is unique, so we do not have set plans or strategies for each client, although we have proven techniques that have worked for past clients. Talk with our team today to learn more.

Looking for SEO Consulting?

At OuterBox, we also offer SEO consulting services. If you're an organization with a large in-house marketing team, you may want an SEO expert to help guide your decisions. We can consult on a monthly basic and provide SEO recommendations, allow your team to do the implementation. We also look to develop long-term client relationships by being the thought leaders in our space and offering that knowledge to your team.


Top SEO Company FAQs

Your Questions. Our Answers.

"Why should I choose OuterBox as my SEO company?"

OuterBox offers over 15 years of experience as a leading digital marketing agency. We were at the forefront of eCommerce and have helped paved the way as this explosive and exciting industry has grown. While we focus on eCommerce, we are a leading provider of SEO services for lead generation, B2B, brand awareness, and much more. We are an excellent fit for the majority of companies who contact us, but we won't hesitate to send you to a competing agency if we feel they make a better fit. We're interested in mutually-beneficial, long-lasting business relationships.

"What is an SEO company? What do SEO companies actually do?"

An SEO company provides search engine optimization (SEO) services. The goal of an SEO company is to increase a websites visibility in organic search engine results to increase the amount of organic traffic to the website. There are a plethora of services rendered by the SEO company to help achieve this goal. It is more important to evaluate the impact of the company's SEO efforts rather than the work itself.

"Should I hire an SEO company? Are SEO agencies worth it?"

If you're asking this question, you are likely too early in the research process to understand the value of SEO services. However, that doesn't mean you shouldn't hire an SEO company. If your website stands to benefit (financially or otherwise) from improved keyword rankings and increased traffic from organic search engines like Google, hiring the right SEO company can be a game-changing decision.

The first step you must take to determine whether or not you should hire an SEO company is to figure out if your website would benefit from SEO services. Once you make that determination, you need to figure out if it makes sense to hire an outside agency or attempt to perform these services in-house. Whether or not SEO agencies are "worth it" or not depends on a tremendous variety of factors. Contact us today to schedule a free SEO visibility audit and discuss your needs in person or over the phone.

"How do I choose an SEO company?"

Choosing an SEO company is no easy task. We've put together this list of the top SEO companies in an attempt to make it easier to find reputable and reliable SEO agencies. When deciding on an SEO company, you should look for a company that has experience working within your industry and can provide examples of tangible results.

"How do I find the best SEO company? What should I look for in an SEO company?"

Finding the best SEO company is impossible and fruitless. Instead, you need to find the best SEO company for your business. Look for a company that specializes in optimizing websites with goals (b2b, lead-generation, eCommerce, etc.) that are similar to your website. For example, OuterBox consistently ranks as a top eCommerce SEO provider, so if you sell products in an online store, we are an ideal partner for your business.

You'll also want to look for a company that can provide examples of tangible results, case studies, and testimonials from satisfied clients. If the SEO company you are considering cannot provide these, you should look elsewhere.

"What services do SEO companies typically offer?"

SEO companies improve a websites organic visibility in rankings through a variety of services and tactics. Typical high-level services include keyword research, site audits, link-building, backlink profile management, on-page optimization, technical optimization. Read more about SEO services.

SEO Video Resources

The Best SEO Companies & SEO Agencies Offer The Following Important SEO Services:

  • In-depth SEO keyword research
  • Competitor research
  • Link profile analysis
  • Link building / earning strategy creation and/or execution
  • Technical website audits
  • Mobile website optimization
  • On-Page Optimization (title tags, meta descriptions, headers, on-page copy, image optimization, etc.)
  • Modification to URL structure
  • Ongoing content marketing strategy and/or execution
  • Header tag optimization (H1, H2, etc.)
  • & much more