Best SEO Companies: 2021 List of Top SEO Agencies

Finding the best SEO company to drive organic search engine 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.

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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 benefit 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 – September 2021

Team Size: 80+
Location: Akron, OH
Phone: 1-866-647-9218

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,¬† Magento, WordPress, WooCommerce, BigCommerce, and more. If boosting online sales is what you need, talk to the OuterBox team today.


Location: Hudson, MA
Phone: 866-342-8510

Location: San Diego, CA
Phone: 858-423-7206

Location: Austin, TX
Phone: 855-388-4992

Location: Boca Raton, FL
Phone: 800-262-5023

Location: Boca Raton, FL
Phone: 800-262-5023

Location: Cordova, TN
Phone: 901-672-7243

Location: San Diego, CA
Phone: 619-752-1955

Location: Harrisburg, PA
Phone: 888-601-5359

Best eCommerce SEO Companies

Team Size: 80+
Location: Akron, OH
Phone: 1-866-647-9218

Location: Austin, TX
Phone: 855-388-4992

Location: Minneapolis, MN
Phone: 763-703-1597

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

Get a Quote from a Top SEO Company

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Quote Request - SEO

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    • Your SEO Needs
      • ‚ÄĘ Are there sales or lead goals you would like to achieve?
      • ‚ÄĘ When would you like to begin the SEO campaign?

      Tell us about your traffic goals, sales goals, main keywords, or phrases your want to rank on the first page of the search results.

    • Your Contact Information
    • *Providing a phone number will allow us to easily contact you regarding questions we may have about your project.

    Select a Topic Below to Learn More About Our SEO Services

    How to Choose The Best SEO Company for Your Needs

    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.
    • An 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, it’s 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 a local SEO campaign compared to an eCommerce campaign but should offer a roadmap and a strategy forward after completion. 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, like 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. A 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 basis 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

    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 the visibility of a website 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 website’s 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