Companies in Illinois

Browse 13,303 organizations within Illinois and explore potential business opportunities

What we know about companies in Illinois

Aggregated from 13,303 company profiles, 12,656 of them with details read from the company's own website.

Top industries

  1. Dentist666 · 5%
  2. HVAC650 · 5%
  3. Med Spa531 · 4%
  4. Home Remodeling466 · 4%
  5. Roofing464 · 3%
  6. Plumbing427 · 3%
  7. General Contractor401 · 3%
  8. Landscaping376 · 3%
  9. Manufacturing288 · 2%
  10. Electrical276 · 2%
  11. Siding275 · 2%
  12. Medical Clinic249 · 2%

Most used technologies

  1. Google Analytics7,708 · 58%
  2. Google AdSense6,780 · 51%
  3. Wordpress6,648 · 50%
  4. Google Tag Manager5,852 · 44%
  5. Google Fonts4,877 · 37%
  6. jQuery4,258 · 32%
  7. YouTube2,280 · 17%
  8. reCAPTCHA1,757 · 13%
  9. Cloudflare1,750 · 13%
  10. Google Maps API1,466 · 11%

How they work (as stated on their websites)

  1. Free estimates2,077 · 16%
  2. 24/7 emergency service1,829 · 14%
  3. Online booking1,258 · 10%
  4. Financing available1,198 · 9%
  5. Pricing published online814 · 6%
  6. Maintenance plans277 · 2%

Average Google rating

4.63 across 9,403 rated businesses

Hiring now

646 list open roles on their website · 5%

Credentials stated

  1. Industry certified1,216 · 10%
  2. Licensed959 · 8%
  3. Insured860 · 7%
  4. Bonded367 · 3%
  5. Manufacturer certified315 · 2%
  6. Association member273 · 2%
  7. Award winner249 · 2%
  8. Compliance certified148 · 1%

Brands carried or installed

  1. Invisalign75 · 1%
  2. Carrier73 · 1%
  3. Lennox51 · 0%
  4. Trane43 · 0%
  5. James Hardie40 · 0%
  6. Bryant39 · 0%
  7. Owens Corning39 · 0%
  8. American Standard34 · 0%

Languages served besides English

  1. Spanish677 · 5%
  2. French97 · 1%
  3. Polish88 · 1%
  4. German55 · 0%
  5. Chinese36 · 0%
  6. Portuguese32 · 0%

Ownership (as declared by the businesses)

  1. Family-owned1,239 · 10%
  2. Women-owned1,127 · 9%
  3. Locally owned429 · 3%
  4. Veteran-owned344 · 3%
  5. Latino-owned152 · 1%
  6. Black-owned101 · 1%
  7. Asian-owned83 · 1%
  8. Employee-owned48 · 0%

13,303 companies in Illinois

1-50/13,303+

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Illinois Businesses With Marketing Gaps

Prospect lists by category and by what each business is missing, from its own website and Google listing. All gaps →