Study: Top U.S. SEO Companies Based on SERPs Dominance Identified From 35 Million Search Results

Judyann Sonido
Top U.S. SEO Companies Based on SERPs Dominance

Need Help With Your SEO?

Thousands of SEO agencies in the United States are vying for the top rankings on search engine results pages (SERPs). Where does your business fit in the online realm?

A study by Radu Plugaru, CEO and founder of Romania-based SEOlium.com, explored how U.S. websites ranked for eight SEO-related search terms. After analyzing 35 million Google search results, Plugaru compiled a list of top-ranking SEO agencies and SEO consultants in the U.S. He also compiled a list of top-ranking websites (that weren’t SEO companies or consultants) based on those same search terms.

According to Plugaru, he conducted the research in an effort to help boost his new professional rank tracker SEO tool. This rank tracker tool aims to help individuals and businesses monitor their competition and understand how to achieve online success.

Initially, Plugaru planned to conduct a study for only one search term: “SEO agency.” However,  to help boost the accuracy and credibility of the study, Plugaru added seven more SEO-related search terms. The final list of eight keywords included:

•  SEO agency
•  SEO company
•  SEO services
•  SEO consultant
•  SEO expert
•  Digital marketing agency
•  PPC agency
•  Google ads agency

Plugaru combined the eight keywords with almost 42,000 U.S. zip codes to produce 341,056 search phrases. The 341,000 searches generated about 35 million search results belonging to about 25,000 domains. Each U.S. website was then ranked by how many of the 341,000-plus search phrases it ranked for on SERPs.

In this post, we’ve put together Plugaru’s lists of leading SEO agencies and consultants, websites and directories with a dynamic keyword optimization strategy based on his findings. Read on and learn what keeps the leading U.S. digital marketing agencies and consultants ahead of the curve.

High-Performing Websites Based On Search Ranking for Relevant Terms

Search engine algorithms are constantly changing. As a marketer, you need to stay abreast of the latest industry developments and search engine updates. These practices will help you zoom past the competition and claim your spot on top of the SERPs rankings.

The problem, however, is many entrepreneurs either lack the time or expertise to run their online marketing campaign.

In this fast-changing, fierce online landscape, you can’t simply launch an SEO campaign and expect results. To keep up with the competition and stay current with the search engine updates, you need to re-evaluate your optimization tactics continually.

But where do you start?

Begin with a targeted keyword optimization strategy. Doing so will help you determine and analyze terms that your target customers look for in search engines.

Let’s look at how Plugaru came up with the list of the top-performing websites via the eight search terms mentioned above.

METHODOLOGY:

In the quest to develop a robust rank tracking tool, Plugaru performed extensive research on eight top-ranking, SEO-related search terms. “If you ask me, the value of such a study is not in the data itself,” Plugaru said, “but in the methodology, the paradigm.”

To determine a comprehensive list of all SEO agencies and consultants in the U.S., Plugaru replicated the methods of his previous studies, including his research on the “World’s Most Googled English Words.” In the past, he used the same process to determine the local businesses in specific industries in the U.S. These included:

•  Pest control
•  Auto repair
•  News outlets
•  Hair salon
•  Flower delivery
•  Parking

Now, to facilitate his research on U.S. SEO agencies and consultants, Plugaru and his team allotted four days (Tuesday to Friday) for Google search. It should be noted that this was one-time research. “We only did it once and were happy with the results we got,” Plugaru said. “We realized that no list is 100 percent accurate, especially since businesses close and open shop every day, and there’s also the Google factor, so we really needed to know when to stop.”

Using his rank tracker tool, Plugaru conducted Google search for 341,000 keywords. “Out of the 13,200 agencies we found, I discovered 46 were specialized in link building,” Plugaru said. “Perhaps others specialize in other aspects of SEO, but most of them are full-service SEO agencies.”

Here’s an overview of how Plugaru and his team processed these data:

The process started with the creation of a CSV file with all the 341,000 search phrases. These are 341,056 keywords, which represented combinations of almost 42,000 U.S. zip codes with the eight SEO-related terms mentioned above. 

SEO related terms

Once the list of keywords was finalized, Plugaru imported the file into the ranking tool. This method generated 35 million search results and more than 2GB of raw data. “Though I wasn’t really interested in actual rankings,” Plugaru said, “I used the raw data in a Microsoft Power BI project to see which agencies are most prominent.”

To filter out SEO agencies, Plugaru selected the 25,000 ranking domains and scraped them using Screaming Frog in list mode. “The idea here was that an SEO agency will always have something relevant in the title tag of their homepage,” Plugaru said. “This part is important. Not any page, but the homepage and the title tag.”

Screamingfrog result

Plugaru added a few custom search fields to crawl the title tags of these websites for keywords, such as SEO, PPC, link building and digital. “After I had the idea with the homepage title tag filtering, it wasn’t that tricky anymore,” Plugaru said. “Screaming Frog did its job brilliantly and my 16GB RAM laptop worked hard, but succeeded.”

He also filtered out negative results, such as irrelevant subdomains, businesses and sites, among others. “The somewhat tricky part was to create the custom search regular expression that would only catch title tags containing SEO keywords,” Plugaru added.

Custom Search

THE RESULTS:

After exporting the data to Microsoft Power BI, Plugaru found a few websites that rank for almost 100 percent of the 341,056 search terms and location combinations.

Top 50 U.S. Website Rankings

This list contains a broad category of websites. It includes online marketing companies, SEO blog sites and even some online SEO directories:

Ranking Website SERPs Count
1.  webfx.com 333,804
2.  searchenginejournal.com 319,881
3.  clutch.co 308,176
4.  moz.com 280,346
5.  lyfemarketing.com 238,169
6.  coalitiontechnologies.com 222,307
7.  themanifest.com 215,007
8.  thriveagency.com 202,749
9.  bluecorona.com 172,968
10.  seo.com 170,544
11.  outerboxdesign.com 162,009
12.  support.google.com 152,126
13.  upcity.com 150,114
14.  en.wikipedia.org 149,441
15.  actuatemedia.com 148,655
16.  seoinc.com 147,378
17.  upwork.com 139,477
18.  linkedin.com 137,470
19.  walkersands.com 135,915
20.  entrepreneur.com 133,606
21.  wordstream.com 129,550
22.  getcredo.com 128,677
23.  ironpaper.com 128,149
24.  blog.hubspot.com 127,673
25.  webdesignrankings.com 124,429
26.  highervisibility.com 122,951
27.  sevenatoms.com 110,753
28.  straightnorth.com 109,493
29.  wpromote.com 109,393
30.  snapagency.com 108,137
31.  seoworks.com 105,333
32.  singlegrain.com 101,931
33.  digitalmarketingagency.com 93,293
34.  directiveconsulting.com 92,788
35.  disruptiveadvertising.com 91,555
36.  brightedge.com 89,074
37.  cardinaldigitalmarketing.com 89,003
38.  digitalagencynetwork.com 86,770
39.  gotchseo.com 86,111
40.  contentmarketingspot.com 85,608
41.  overthetopseo.com 85,511
42.  fiverr.com 85,430
43.  adventureppc.com 85,302
44.  zatomarketing.com 85,264
45.  klientboost.com 85,263
46.  powerdigitalmarketing.com 85,244
47.  99firms.com 85,242
48.  upgrow.io 85,185
49.  victoriousseo.com 85,000
50.  digitalmarketinginstitute.com 84,960

Interestingly, the majority of these U.S. websites that ranked high for the eight relevant search terms stated above are SEO agencies.

“There are all the local results, and there are national results,” Plugaru said. “And national SEO agencies rank in all the locations. What was perhaps amazing is that they need to rank for all eight search terms, such as Google Ads, PPC, SEO expert and digital marketing. But then Google tells us they are so good at determining search intent, right?”

Top 50 U.S. Non-SEO Agency Website Rankings

To narrow down the research, Plugaru filtered out SEO agencies from the results. He found the following top 50 high-ranking, non-SEO agency websites based on Google search results for related terms:

Ranking Website SERPs Count
1.  searchenginejournal.com 319,881
2.  clutch.co 308,176
3.  moz.com 280,346
4.  themanifest.com 215,007
5.  support.google.com 152,126
6.  upcity.com 150,114
7.  en.wikipedia.org 149,441
8.  upwork.com 139,477
9.  linkedin.com 137,470
10.  entrepreneur.com 133,606
11.  wordstream.com 129,550
12.  getcredo.com 128,677
13.  blog.hubspot.com 127,673
14.  webdesignrankings.com 124,429
15.  fiverr.com 85,430
16.  digitalmarketinginstitute.com 84,960
17.  forbes.com 82,550
18.  quora.com 77,633
19.  amazon.com 70,195
20.  screamingfrog.co.uk 65,439
21.  udemy.com 62,003
22.  expertise.com 53,684
23.  searchengineland.com 50,519
24.  semrush.com 46,848
25.  backlinko.com 44,735
26.  digitalagencyrankings.com 43,035
27.  ads.google.com 42,721
28.  10bestseo.com 42,708
29.  callrail.com 42,686
30.  yoast.com 42,641
31.  ventureharbour.com 42,635
32.  cio.com 42,633
33.  lynda.com 42,632
34.  ahrefs.com 42,632
35.  raventools.com 42,632
36.  google.com 42,631
37.  webopedia.com 42,631
38.  digitalexits.com 42,622
39.  sellerapp.com 42,622
40.  marketingplatform.google.com 42,620
41.  talentlyft.com 42,618
42.  godaddy.com 42,595
43.  blog.freelancersunion.org 42,492
44.  blog.hubstaff.com 42,368
45.  freelancer.com 42,215
46.  checkli.com 42,072
47.  hostgator.com 41,415
48.  delanceystreet.com 40,940
49.  business2community.com 39,709
50.  salesforce.com 37,020

This data indicates that in the online realm, you are not only competing with other service or product providers; you are also competing with information sources across the web to win in the SERPs.

Top 100 U.S. SEO Agencies and Consultants Rankings

Now, to give more targeted results, Plugaru isolated U.S. SEO agencies and consultants from the initial findings. Doing so allowed him to provide a more accurate listing of the top-performing digital marketing agencies in the U.S.

The idea that guided the study was, “If an agency doesn’t have relevant keywords in their homepage’s title, they’re not an SEO agency after all,” Plugaru said.

Simply put, online marketing companies that lack proper keyword optimization tactics are missing out on the competition. This means that both search engines and online users can hardly recognize them.

Listed below are the top 100 U.S. SEO agencies and consultants that ranked high on search results for the keywords stated above:

Ranking Website SERPs Count
1.  webfx.com 333, 804
2.  lyfemarketing.com 238,169
3.  coalitiontechnologies.com 222,307
4.  thriveagency.com 202,749
5.  bluecorona.com 172,968
6.  seo.com 170,544
7.  outerboxdesign.com 162,009
8.  actuatemedia.com 148,655
9.  seoinc.com 147,378
10.  walkersands.com 135,915
11.  ironpaper.com 128,149
12.  highervisibility.com 122,951
13.  sevenatoms.com 110,753
14.  straightnorth.com 109,493
15.  wpromote.com 109,393
16.  snapagency.com 108,137
17.  seoworks.com 105,333
18.  singlegrain.com 101,931
19.  digitalmarketingagency.com 93,293
20.  directiveconsulting.com 92,788
21.  disruptiveadvertising.com 91,555
22.  brightedge.com 89,074
23.  cardinaldigitalmarketing.com 89,003
24.  digitalagencynetwork.com 86,770
25.  gotchseo.com 86,111
26.  contentmarketingspot.com 85,608
27.  overthetopseo.com 85,511
28.  adventureppc.com 85,302
29.  zatomarketing.com 85,264
30.  klientboost.com 85,263
31.  powerdigitalmarketing.com 85,244
32.  99firms.com 85,242
33.  upgrow.io 85,185
34.  victoriousseo.com 85,000
35.  seoservicesusa.co 84,954
36.  impactbnd.com 84,120
37.  invisibleppc.com 81,668
38.  reliablesoft.net 79,685
39.  neilpatel.com 77,367
40.  lseo.com 75,771
41.  seocompanylosangeles.us 75,479
42.  bruceclay.com 71,886
43.  mainstreethost.com 71,481
44.  localseoguide.com 62,155
45.  indexsy.com 61,166
46.  topspot.com 50,432
47.  webolutions.com 49,543
48.  holini.com 48,100
49.  quicksprout.com 47,354
50.  rankpay.com 45,306
51.  persistseo.com 45,017
52.  justdigital.marketing 43,963
53.  jimmyhuh.com 43,785
54.  oneclickseo.agency 43,597
55.  seoexpertdanny.com 43,519
56.  thirdmarblemarketing.com 43,481
57.  ignitevisibility.com 43,423
58.  topseos.com 43,384
59.  mikekhorev.com 43,260
60.  voymedia.com 43,178
61.  ezrankings.org 42,939
62.  seoexpertmanagement.com 42,899
63.  marketingandadvertisingdesigngroup.com 42,831
64.  ithinkanidea.com 42,755
65.  rainsaaronseo.com 42,749
66.  knowmad.com 42,742
67.  vtldesign.com 42,738
68.  seoexperts.com 42,738
69.  postmm.com 42,735
70.  brafton.com 42,725
71.  crevand.com 42,720
72.  digitalcurrent.com 42,716
73.  seoexpertpatrick.com 42,702
74.  alphametic.com 42,673
75.  web-savvy-marketing.com 42,663
76.  outspokenmedia.com 42,648
77.  michaelcottam.com 42,648
78.  bealwaysmarketing.com 42,635
79.  adespresso.com 42,632
80.  uhurunetwork.com 42.632
81.  firstrankseoservices.com 42,632
82.  searchscientists.com 42,632
83.  elsner.com 42,631
84.  prometheusppc.com 42,631
85.  amazelaw.com 42,630
86.  rothmanppc.com 42,630
87.  smsrd.com 42,630
88.  dipietro.biz 42,637
89.  seattleseoconsultant.com 42,626
90.  seocompany.com 42,626
91.  popwebdesign.net 42,617
92.  digitalcrew.agency 42,612
93.  brainvire.com 42,610
94.  jumpfly.com 42,604
95.  aumcore.com 42,599
96.  9clouds.com 42,598
97.  aleydasolis.com 42,589
98.  kim2design.com 42,584
99.  ottawaydigital.com 42,552
100.  balcomagency.com 42,551

Understanding the Search Results

Search optimization is all about getting search engines to crawl and index your website effectively and, ultimately, showing your site high up on SERPs. However, there’s more than meets the eye when it comes to SERPs.

Let’s take a closer look at the top 10 U.S. digital marketing agencies and consultants from Plugaru’s findings:

Ranking SEO Agency/Consultant Description Location
1.  webfx.com WebFX is a full-service digital marketing agency that helps companies boost their leads, conversions and revenue. Philadelphia
2.  lyfemarketing.com LYFE Marketing is an online marketing company that provides a variety of services, including social media marketing, SEO and pay-per-click (PPC) management. Atlanta
3.  coalitiontechnologies.com Coalition Technologies is a California-based digital marketing agency. It offers SEO, web design and online marketing solutions. Los Angeles
4.  thriveagency.com Thrive Internet Marketing Agency is an award-winning digital marketing agency that provides a holistic approach to online marketing. It offers conversion rate optimization   (CRO), SEO, PPC   and a variety of web solutions. Dallas
5.  bluecorona.com Blue Corona is a digital marketing company that provides results-driven web solutions. It offers email marketing, live chat services and video marketing, among others. North Carolina
6.  seo.com SEO.com is an online marketing agency that provides custom marketing strategies for companies of all types and sizes. It offers web design, SEO, content creation and social media marketing services. Utah
7.  outerboxdesign.com OuterBox is one of the leading digital marketing agencies that offer eCommerce web design, SEO and Google Ads management services. Ohio
8.  actuatemedia.com Actuate Media provides online marketing services to facilitate business-to-consumer (B2C) and business-to-business (B2B) transactions. Seattle
9.  seoinc.com SEO Inc. is an internet marketing company that provides custom SEO, PPC, social media and web development solutions. California
10.  walkersands.com Walker Sands facilitates the online growth of B2B brands. It offers B2B branding, marketing strategy creation, demand generation and web services. Chicago

Key Findings Of The Study

To better understand the implication of this research, let’s look at the key factors that set these U.S-based online marketing companies apart from the competition:

1. Location

Interestingly, each of the top 10 digital marketing agencies and consultants belongs to different regions in the U.S. Now, what does this mean for your business?

This simply indicates that for your business to rank high on search results, you need to optimize your content based on high-ranking, geo-targeted keywords. This is especially true if you have a multiple-location business.

Organic search keywords are dominated by a handful of established digital marketing players. You can try aiming for the broadest high-traffic keywords. However, this leaves you with stiff competition.

With more targeted terms, you can boost your ranking for broad terms and specific locations. At the same time, geo-targeting allows you to connect with a targeted client base.

Here are some tips you can follow to boost your search ranking for your target locations:

 Determine your niche
  Perform extensive keyword research
  Optimize your site structure
  Add geo-targeted keywords for each franchise location

2. Specific Niche

The top U.S. digital marketing agencies and consultants listed above are all full-service online companies. This means that all of them provide digital marketing solutions, including SEO, PPC and web design and development solutions.

Now, as a marketer, you need to determine your area of expertise clearly. Choose your business category on Google My Business (GMB) listings. Ensure that you enlist in the category that best describes your business.

Identifying your niches helps narrow down your target terms and facilitates your keyword research strategy.

3. Robust Online Platform

Each of the digital marketing agencies and consultants listed above has a fully-optimized, high-performing website. This means that all these sites are SEO-optimized, device-responsive and accessible to all users.

To boost your chances of ranking on top-performing keywords, you must:

  Improve the usability of your website
  Ensure mobile and browser compatibility
  Publish unique, information-rich content
  Optimize your site speed
  Place effective site navigations
  Include clear, usable form fields
  Leverage internal linking
  Maximize social sharing
  Secure external links to the page

These practices help ensure your site gets crawled and indexed by search engines.

4. Optimized Title Tags

Title tags are significant factors in your business’ online success. These are HTML tags found in the head section of each webpage. Title tags are the clickable titles displayed on SERPs when online users search for a specific term.

For instance, if you enter the key phrase, “digital marketing agency” on Google, the following results will appear:

Digital Marketing Agency in SERP

Now, it is crucial that you incorporate your target keywords on your title tags. Doing so sends signals to search engines that you want to rank for the specific terms.

Title tags are also displayed on social networks and at the top of web browsers. Here are some tips in optimizing your title tags:

  Keep your page title short and simple — it should not be longer than 60 characters
  Avoid keyword stuffing
  Use a unique title for each web page
  Put primary keywords first, if possible
  Write for your customers

5. Service Pages

If you visit each of the top 10 U.S. digital marketing agencies and consultants listed above, you will notice that they have a specific page assigned for each web solution they offer.

Thrive services page

Using different service pages helps guide both search engines and online users in navigating your website. To create effective service pages, you need to:

  Identify all your service or product offerings
  Conduct extensive keyword research for each page
  Create unique, comprehensive page content
  Leverage internal linking across all web pages
  Write content that targets your buyer persona

From The Expert:

When asked about his plans on utilizing the raw data, Plugaru said, “I may add some more data points, such as estimated monthly search volume (per each search expression), to discover actual visibility.” Plugaru also said he’s considering conducting a similar study based on worldwide rankings instead of just isolating it to the United States.

“A challenge, though,” Plugaru added. “I need to translate those eight search terms into all the languages out there!”

Optimize Your Website for High-Ranking, Organic Keywords

Learn from these top-performing U.S. digital marketing companies and consultants and boost your chances of ranking high on search results. Remember, the key to successful online growth is to continually improve your optimization strategies and aim to rank high for top-performing, relevant keywords.

To ensure you are implementing white-hat SEO tactics, partner with one of the best SEO companies in the United States. Choose an SEO agency in your city that can help you go above and beyond your marketing goals.

Comments

  1. This is really very informative post. Very rich article i must say. According to your write up SERP raking is vital aspect for any website. Thanks for sharing such knowledgeable research. Please keep sharing.

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