The 10 ranked SEO companies in Illinois hold 397 Google reviews between them, with an average rating of 4.87. One city has two or more ranked agencies: Chicago (4).
397Google reviewsacross the 10 agencies above
4.87average Google ratingout of 5
$25–200/hrhourly rate range20 agencies
0 of 27offer white-label SEOon this list
How the Rankyfy Score ranks SEO companies in Illinois
The Rankyfy Score rates an agency from 0 to 100 on five things clients can check themselves: client reviews, measured visibility, portfolio, responsiveness and credentials. Measured visibility is the component that separates agencies on this list today, because most profiles are new and carry similar review data.
Rankyfy Score components and how each is calculated
Component
Points
How it is calculated
Client reviews
40
Adjusted average rating, review count on a log scale, recency (the last 24 months weigh most), and the share verified by call or LinkedIn.
Proof of skill
25
For SEO: the agency's own organic and AI-search visibility trend, authority growth and site health. For design and development: site speed and a verified portfolio.
Portfolio and experience
15
Case studies with verified metrics, years in business from the registry, confirmed clients.
Responsiveness and transparency
10
Median time to first reply on briefs, response rate, published pricing, profile completeness.
Credentials and presence
10
Verified partner badges, third-party awards, speaking and publications.
Rankyfy Score
100
All components added and rounded. Agencies with the same Rankyfy Score are listed by measured search visibility, highest first. Sponsored slots sit outside the numbering and never change a score.
To be ranked, an agency must also:
Be an established SEO company with an office in Illinois, with a verified location, a description and its services listed on Rankyfy.
Have at least one proof point: verified client reviews, measured visibility or a case study.
Score 20 or higher. Every agency on this list clears that mark.
We recalculate every score on the 1st of each month from reviews, measurements and profile data on Rankyfy. 27 agencies were evaluated for this edition.
Disclosure: Rankyfy Agencies is run by Rankyfy. Agencies connected to Rankyfy or its staff are labelled on their listing, score on exactly the same five components as every other agency, and are not eligible for awards. Sponsored slots never change rank. Disclosures · Full methodology
Search work at PopArt Studio is built into the way it develops websites, which is why SEO and web design share its declared work in equal halves. The Chicago full service agency combines technical and on page optimisation with performance improvements and search aware development, so rankings are considered while sites are being built on WordPress, Laravel, .NET or bespoke CMS platforms. Around that core it offers UX and UI design, web applications, branding from logos to full brand systems, and AI services including chatbots, voicebots, generative AI integrations and automation. It describes a consulting first approach, for global brands, startups and other digital agencies. Rankyfy measured its organic traffic rising from 32,920 to 39,830 visits over 12 months; its score of 20.6 rests on visibility at 19 of 25, with reviews at 0 of 40. Team of 50 to 249. Projects from around $5,000, hourly $50 to $99.
Long tail searches for part numbers and specifications are where SCUBE Marketing aims its SEO, working for ecommerce brands with technical catalogs such as auto parts, heavy equipment, marine components, construction supplies and industrial products. The small Oakbrook Terrace, Illinois agency splits declared work evenly between SEO and PPC, and structures search, Google Shopping, Microsoft Ads, product feeds and Google Tag Manager tracking around compatibility data and SKU level detail. It argues that data accuracy, not traffic volume, decides efficiency for this kind of retailer. It is also clear about who it does not suit: brands selling impulse purchases, or those mainly after creative testing or short sales spikes. No industries are listed in its profile. Rankyfy measured organic traffic rising from 33,990 to 41,470 visits over 12 months, though its score of 20.6 reflects reviews at 0 of 40 and visibility at 19 of 25. Team of 1 to 9. Projects from $1,000, hourly $100 to $149.
Every profile on this list shows which of these the agency offers, checked by our team.
Red flags
Guaranteed rankings. Google warns against SEOs that guarantee rankings or claim a special relationship with Google (Google Search Central).
Recent verified reviews of these agencies
No published reviews of these agencies yet.
Reviews are collected on Rankyfy only. Negative reviews stay visible. Review policy
How we ranked these 27 agencies
We evaluated 27 agencies in Illinois offering SEO.
Each got a Rankyfy Score out of 100 from five factors: measured visibility 25, client reviews 40, portfolio 15, credentials 10, responsiveness 10.
Agencies are listed by score alone; ties go to more verified reviews. Sponsored slots sit outside the numbering.
An editor checked the top entries against their profiles, contracts and sample reports.
Data
Reviews collected and verified on Rankyfy; search visibility measured by Rankyfy; prices from agency packages; reply times from briefs sent through Rankyfy. Snapshot as of Nov 10, 2026.
Sponsored slots
Sold per page and month, labelled, with rel="sponsored" links. They never change rank or score.
Conflicts of interest
Rankyfy Agencies is run by Rankyfy. Agencies connected to Rankyfy or its staff are labelled on their listing, score on exactly the same five components as every other agency, and are not eligible for awards. Sponsored slots never change rank. Disclosures
