OpenServed

Best Digital Marketing Agencies in Illinois (2026) – Ranked by Case Studies

Kelair Dampers Client-verified
GEO, SEO, Web Design
Manufacturing
11-50 Employees
N/A
Bellwood, IL
N/A
  • +141% Increase in leads
DFIN Client-verified
PPC, SEO
Finance
1K-5K Employees
N/A
Chicago, IL
N/A
  • 50 Million Impressions
  • 300% Increase in conversions
PPC, SEO, Web Design
Fintech
51-200 Employees
N/A
Naperville, IL
N/A
  • 1,143% Increase in growth
Culligan Client-verified
Social Media Ads, Content Marketing
Home Services
1K-5K Employees
N/A
Rosemont, IL
N/A
  • 44M+ Views on TikTok Content
  • 1.34M YouTube Views With Search Traffic
  • $0.98 Cost-Per-Follow for 54K TikTok Followers
AEO, CRO, SEO, Email Marketing, SMS Marketing
Retail
201-500 Employees
N/A
Chicago, IL
N/A
  • 20% YoY Net Revenue Growth
  • 25% YoY Improvement in Purchase CVR
  • 331% QoQ Lift in Engine Activations
PPC, CRO, SEO
Retail
201-500 Employees
N/A
Chicago, IL
N/A
  • 49% Decrease in Paid CAC
  • 60% Increase in Google Paid Search Net Sales
  • 25% Increase in Site-Wide Net Sales Through PMax Campaigns
Web Design, SEO, Local SEO
Moving
N/A
N/A
Elk Grove Village, IL
N/A
  • Brand-new mobile-friendly website
  • Improved keyword rankings, organic traffic and conversions since 2018
Web Design, SEO, Lead Generation
Home Services
N/A
N/A
Carol Stream, IL
N/A
  • Leads from 2-3 per month to 60 per month
  • Geo-based micro-sites on RestorationMasterFinder.com
Web Design, SEO
Manufacturing
N/A
N/A
Chicago, IL
N/A
  • Redesign with order and quote forms on each product page
  • Mobile-responsive site for a drive-thru window manufacturer
SEO, Local SEO
Education
N/A
N/A
Hoffman Estates, IL
N/A
  • 600%+ increase in organic traffic
  • 120%+ increase in organic leads
  • 10x growth in ranking organic keywords
  • #1 on Google for "roofing school near me" and "roofing exam prep"
  • Top-cited source in Google AI Overviews for "best Illinois roofing school"
SEO, Local SEO
Home Services
N/A
N/A
Aurora, IL
N/A
  • 47x increase in organic traffic
  • 150% increase in organic leads
  • Ranking keywords grew from about 100 to 3,200
  • #1 ranking for "best roofing company in Chicago"
Atlas HXM Client-verified
PPC, SEO, Lead Generation
Professional Services
1K-5K Employees
N/A
Chicago, IL
N/A
  • 4x deal volume and 3x deal quality in 7 months
  • Conversion rate +34%
  • Cost per opportunity down 27%
  • MQL-to-opportunity rate from 41% to 55%
  • Google Ads pipeline delivered ~5.5x ROI on spend
iCONN Systems Client-verified
SEO, Content Marketing
Manufacturing
11-50 Employees
N/A
Lombard, IL
N/A
  • Top-10 keywords +482% in 24 months (27 to 157)
  • Organic traffic +327% (802 to 3,428)
  • New organic contacts +61% (75 to 121)
  • Featured snippets from 1 to 8; People Also Ask from 0 to 73 keywords
  • Visibility index +302% (3.7% to 14.9%)
Killerspin Client-verified
Web Development, SEO, PPC
Sporting Goods
11-50 Employees
N/A
Chicago, IL
N/A
  • Replatformed the store to Magento linked to warehouse operations
  • Sales tracking live from day 1
  • Distribution in 14 countries across 5 continents
App Development, Data & Analytics, CRM
Retail
5K-10K Employees
N/A
Oak Brook, IL
N/A
  • Over 1 million app installs (within 7 months of launch)
  • Over 150,000 new rewards accounts
  • $30 million in omnichannel revenue
Amazon Marketing, Retail Media, eCommerce Optimization
Home & Garden
10K+ Employees
N/A
Chicago, IL
N/A
  • 30% Q4 sales increase year-over-year
  • 391% revenue surge in top product category
  • 15% Q4 conversion rate lift
  • New-to-brand purchase rate above 70%
  • 4.5x ROAS on new product launch in January
Social Media Ads, Influencer Marketing, Content Marketing
Food & Beverage
10K+ Employees
N/A
Chicago, IL
N/A
  • 1.1 billion earned media impressions
  • 324 earned media placements
  • 3 million social engagements
  • +138% engagement over social benchmark
Branding, Email Marketing, Lead Generation
Manufacturing
5K-10K Employees
N/A
Chicago, IL
N/A
  • 70% lift in sales
  • New sales cycle of 26 days, compared to 24 months
  • More RFQs in the first 3 months than the entire previous year
Content Marketing, PPC, Web Design
Manufacturing
10K+ Employees
N/A
Glenview, IL
N/A
  • $1MM in first-year sales
  • 32MM+ media impressions and 1,200+ trade and consumer PR placements
  • 35% email open rate, nearly 2x the industry average
Branding, PPC, Social Media Ads
Healthcare
10K+ Employees
N/A
Chicago, IL
N/A
  • 4x increase in traffic to the appointment scheduler page
  • Unique page views +215% over 3 months year over year
  • 28% lift in virtual appointments in the first 90 days of the campaign
PPC, CRO, Content Marketing
SaaS
51-200 Employees
N/A
Chicago, IL
N/A
  • 87% Increase in Traffic
  • 33% Decrease in CPA
  • 47% Increase in Conversion Rate
PPC, Web Design, Social Media Ads
SaaS
51-200 Employees
N/A
Chicago, IL
N/A
  • 47% Increase in Conversion Rate
  • 33% Decrease in CPA
  • 87% Increase in Traffic
PPC, Social Media Ads
Ecommerce
1-10 Employees
N/A
Chicago, IL
N/A
  • 258% Increase in ROAS
  • 82% Increase in Sales
  • 55% Decrease in CPA
PPC, Social Media Ads
Hospital
1K-5K Employees
N/A
Chicago, IL
N/A
  • 8.35% Conversion Rate
  • $119 Cost Per Acquisition
  • 1,249,103 Total Impressions
SEO, Web Design
Dermatology
51-200 Employees
N/A
Urbana, IL
N/A
  • 309% Increase in Patient Leads
  • 171% Increase in Organic Traffic
  • 51% Increase in Organic Conversion Rate
SEO, PPC
Mental Health
201-500 Employees
N/A
Oak Brook, IL
N/A
  • 435% Increase in Lead Volume
  • 120% Increase in Total Bookings
  • 97% Increase in Top 10 Keyword Rankings
  • 208% Increase in Organic Traffic
SEO, GEO, PPC
Manufacturing
11-50 Employees
N/A
Elgin, IL
N/A
  • 131% increase in organic purchases YoY
  • 10x growth in keywords triggering AI Overviews
  • 45% increase in web order value YoY
  • Record-breaking revenue month
SEO, Web Design, PPC
Logistics
N/A
N/A
Monmouth, IL
N/A
  • SEO brought in Goodyear, Baskin Robbins and Dunkin Donuts as customers
  • Purchased a second, larger warehouse
Social Media Ads, Branding
Manufacturing
51-200 Employees
N/A
Lemont, IL
N/A
  • 26% increase in following
  • 29% increase in engagement
  • Brand identity redefined, with new collateral for social media
Lead Generation, Email Marketing
Healthcare
10K+ Employees
N/A
Chicago, IL
N/A
  • $2B+ in influenced opportunities
  • $600M closed won
  • 30% campaign efficiency gain
Lead Generation, Email Marketing
Technology
1K-5K Employees
N/A
Downers Grove, IL
N/A
  • 40% marketing efficiency gain
  • 50% faster lead response time
  • 100% Workfront integration
Content Marketing, Email Marketing, Lead Generation
Industrial
51-200 Employees
N/A
Palatine, IL
N/A
  • 51% increase in organic traffic and 73% increase in blog traffic
  • 61% increase in new leads
  • LinkedIn training for sales: 353% more interactions and 424% more shares
  • 300% increase in new contacts
Content Marketing, SEO, Email Marketing
Construction
11-50 Employees
N/A
Roselle, IL
N/A
  • 64% increase in website traffic and 71% increase in organic traffic
  • 90% increase in email sessions, with a 24% open rate and 1,170 influenced contacts
  • Social media: 564% increase in clicks and 171% increase in sessions to the site
  • HOA email campaign converted at 17%
  • A single email generated 3 new paving projects
SEO, Lead Generation, Web Design
MSP
11-50 Employees
N/A
Park Ridge, IL
N/A
  • $5.5M in lifetime revenue
  • $92K+ in MRR
  • 10-12+ high-intent leads per month
SEO, Lead Generation, Web Design
MSP
11-50 Employees
N/A
Naperville, IL
N/A
  • $492K in closed revenue
  • 65% of inbound leads were true managed services opportunities
  • 2,800x increase in web visibility
  • Replaced two underperforming agencies
Web Design, Content Marketing
Manufacturing
10K+ Employees
N/A
Chicago, IL
N/A
  • +60% click-through rate
  • -84% cost per click (from $226 in 2021 to $36 in 2023)
  • +68% leads generated
Web Design, Content Marketing
Consumer Goods
10K+ Employees
N/A
Chicago, IL
N/A
  • -6% bounce rate
  • +20K users
  • Improved SEO score
Data & Analytics, CRO
Telecom
1K-5K Employees
N/A
Chicago, IL
N/A
  • 2 stars increase in app rating in one year
  • 27% app conversion rate year over year
  • 163% increase in plan changes year over year
  • 42% increase in monthly app sessions
Web Development, Experiential Marketing
Food & Beverage
10K+ Employees
N/A
Chicago, IL
N/A
  • 1M program sign-ups in first 12 months
  • 40% increase in operational efficiency through reusable systems
  • 93% increase in return visits to the platform
PPC, Account-Based Marketing
Finance
10K+ Employees
N/A
Chicago, IL
N/A
  • 73% decrease in CPA
  • 200% increase in investment/spend
  • 2X increase in conversions
  • 80% reduction in brand keyword spend, only 27% conversion decline
  • 440% more conversions in low-volume campaign, 12% more efficient CPA
PPC, Email Marketing
Logistics
1K-5K Employees
N/A
Chicago, IL
N/A
  • 21% decrease in cost-per-lead
  • 50% decrease in CPC
  • 75% increase in impressions
  • April cost-per-lead down 20% MoM during COVID-19
  • Search coverage increased by over 50%
PPC, Programmatic Advertising, YouTube Advertising
Foodservice Equipment
1K-5K Employees
N/A
Addison, IL
N/A
  • +170% revenue growth since 2016
  • +27% ROAS improvement since 2016
  • Final ROAS of 1,579%
  • 3,300 Apple Search Ads installs
  • 22,500 Google App Campaign installs
Social Media Ads, Community Engagement
Fintech
201-500 Employees
N/A
Chicago, IL
N/A
  • $50K total spend
  • 4.8M total impressions
  • 9.5K total clicks
  • 21% higher impressions vs Reddit's benchmark
  • 10x cheaper CPA during Community Takeover
SEO, AEO, Technical SEO
Construction
51-200 Employees
N/A
East Peoria, IL
N/A
  • 67% Increase in Organic Traffic
  • 1,400 New Organic Keywords
  • 540% Increase in Google AI Overview Mentions
  • 400% Growth in Organic Traffic Value
SEO, AEO, Content Marketing
Construction
51-200 Employees
N/A
East Peoria, IL
N/A
  • 400+ New AI Citations in 12 Months
  • 174 More Mentions on Google AI Overviews
  • 113 More Mentions on ChatGPT
  • 6.7K Increase in Organic Traffic Worth $220,000
SEO, Content Marketing, Social Media Ads
Home Services
1-10 Employees
N/A
Oak Park, IL
N/A
  • 12x the search visibility of competitors in the first three months
  • Average Google search position improved by 27 spots
  • Organic search traffic +27%
  • Instagram impressions +20,400% and engagements +48,300%
  • Instagram followers more than doubled
Social Media Ads, Content Marketing
Home Services
N/A
N/A
Glenview, IL
N/A
  • 958.5K Instagram impressions
  • Average daily reach of 1,200 unique users
  • Collaborated with 40+ high-end vendors and publications
Web Design, Web Development
Healthcare
N/A
N/A
Chicago, IL
N/A
  • Dynamic Homepage: Featuring welcoming visuals, mission-driven messaging, and priority CTAs
  • Service-Focused Navigation: Designed to help users quickly find the care or resource they need
  • Appointment & Portal Access: Streamlined scheduling and direct links to essential tools
Web Design, Web Development
Manufacturing
10K+ Employees
N/A
Deerfield, IL
N/A
  • Implementation of new website designs
  • Responsive website standards
Content Marketing, Social Media Ads
SaaS
N/A
N/A
Chicago, IL
N/A
  • 47 press hits in publications with an average domain authority of 62
  • 794M total media impressions
  • 21 backlinks
  • 7 Forbes bylines and expert panel articles
Branding, Web Design
SaaS
N/A
N/A
Chicago, IL
N/A
  • Full rebrand with new brand guidelines and a rebuilt website
  • Increased social media presence
Email Marketing, SEO
Jewelry
N/A
N/A
Vernon Hills, IL
N/A
  • 116% Increase
  • 40% Increase in Organic Revenue
  • 193% Increase in Conversion Rates YOY on Automations
  • 53% Increase in Click-through Rates
  • 110% Increase in Revenue From Automations
PPC, SEO
Toys & Games
N/A
N/A
Vernon Hills, IL
N/A
  • 15.93% Increase in Organic Traffic Has
PPC, SEO, Email Marketing
E-commerce
11-50 Employees
N/A
Crystal Lake, IL
N/A
  • Paid transactions up 60% and paid revenue up 90% year over year after three months
  • Organic sessions and revenue nearly doubled year over year after three months
  • Organic monthly blog sessions doubled in seven months
  • Ranks #2 on Google for "bidet"
PPC, SEO, Content Marketing
Industrial
51-200 Employees
N/A
University Park, IL
N/A
  • 106% growth in site users and 73% growth in revenue (Jan-Jul 2021 vs. 2019)
  • Google organic users up 82% and organic revenue up 50%
  • New Google Ads account grew to 17% of total revenue
  • Direct traffic up 47% in users and 67% in revenue
  • Outranked Amazon and ULINE for target keywords
Web Development, Web Design
SaaS
501-1K Employees
N/A
Chicago, IL
N/A
  • Native Webflow app built in 12 weeks
  • Delivered on schedule
  • Webflow forms mapped and synced to ActiveCampaign Custom Objects
PPC, Ad Creative, SEO
Industrial
11-50 Employees
N/A
Rockford, IL
N/A
  • 30% increase in revenue
  • 40% increase in impressions
  • 10% increase in CTR
SEO, Content Marketing
Retail
1-10 Employees
N/A
Chicago, IL
N/A
  • 169% increase in organic traffic
  • Revenue up 40% year over year in November ($100K to $140K)
  • #1 and #2 for "electric cigar humidor"
Content Marketing, SEO
Education
501-1K Employees
N/A
Chicago, IL
N/A
  • 20% increase in total organic search traffic YoY
  • 52% increase in organic clicks to the blog YoY
  • 47% increase in organic search lead volume YoY

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