List of Offices in Illinois
Illinois has 225 offices in this dataset, last verified September 8, 2026. It ranks 14th of 29 states with 2.2% of the national total, between Ohio (239) and Alabama (213).
Springfield is the largest city market we track, with 108 offices. That city holds 48% of the state total, with the rest spread across smaller cities and towns.
Email is harder to come by in Illinois: 46 records (20.4%) include an email address, below the national rate of 25.1%, so phone should carry more of the outreach. 209 (92.9%) list a phone number, and 43 carry both.
74.7% of offices in Illinois have a website, in line with the national average of 79.5%. The 57 without a site are a ready-made prospect list for web design and local SEO agencies.
Among the 167 rated offices in Illinois, 28% hold a 5-star average, above the national figure of 24%. 45 are rated 1 to 2 stars (27% of rated businesses, below the national 35%), a natural shortlist for reputation management and review software.
Social Media Reach
76
71
32
45
YouTube
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Offices List in Illinois
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| LOGO | Business Name | Address | City | State | Country | Phone | Website | Reviews | Rating | FB | IG | LI | YT | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Administrative Office of the Illinois Courts | Address | Springfield | Illinois | United States | Email | Phone | 1 | 5 | — | — | — | — | |||
Rockford Business Licenses | Address | Rockford | Illinois | United States | Email | Phone | — | 0 | 0 | — | — | — | — | ||
Rockford City Planning Division | Address | Rockford | Illinois | United States | Email | Phone | — | 0 | 0 | — | — | — | — | ||
US Inspector General Office | Address | Springfield | Illinois | United States | Email | Phone | — | 0 | 0 | — | — | — | — | ||
CB2 Corporate Headquarters | Address | Chicago | Illinois | United States | Email | Phone | 14 | 1.3 | — | — | — | — | |||
Rockford Liquor License | Address | Rockford | Illinois | United States | Email | Phone | 0 | 0 | — | ||||||
Naperville Town Clerk | Address | Naperville | Illinois | United States | Email | Phone | 4 | 4 | — | — | — | — | |||
Springfield City Office | Address | Springfield | Illinois | United States | Email | Phone | — | 0 | 0 | — | — | — | — | ||
Rockford Building Department | Address | Rockford | Illinois | United States | Email | Phone | 7 | 1 | — | ||||||
United States Postal Service | Address | Springfield | Illinois | United States | Email | Phone | 102 | 2.5 | — | — | |||||
UScellular Business Office | Address | Rockford | Illinois | United States | Email | Phone | 1 | 5 | — | ||||||
City of Chicago Office of Inspector General | Address | Chicago | Illinois | United States | Email | Phone | 6 | 3 | — | — | — | — | |||
VFS Global India Visa Application Center in Chicago | Address | Chicago | Illinois | United States | Email | Phone | 97 | 2.4 | — | — | — | — | |||
DCFS | Address | Springfield | Illinois | United States | Email | Phone | 12 | 1.5 | — | — | — | — | |||
City of Aurora Public Works | Address | Montgomery | Illinois | United States | Email | Phone | — | 0 | 0 | — | — | — | — |
This is a randomized preview — the full database contains 225 records with complete field coverage.
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225 verified records — emails, phones, social profiles and more. One-time payment, instant download.
Distribution by Location
Number of Offices across different territories
City | Offices |
|---|---|
Springfield | 108 |
What You Can Do with the List of Offices in Illinois
This list is built for teams that sell to offices: B2B suppliers, small business software vendors and local marketing agencies. It covers 225 offices in Illinois, with the fields to call, email, segment and map them.
Who Sells to Offices in Illinois
Each of these buyers can work the 225 businesses in this list as a pipeline for a different product:
- Suppliers and wholesalers: Introduce your products and trade pricing to the 225 offices in Illinois.
- Small business software and payments: Pitch scheduling, invoicing, POS or payment tools sized for owner-run businesses.
- Local marketing agencies: Offer websites, local SEO and ads to businesses competing for customers nearby.
Phone, Contact Form and Facebook Outreach in Illinois
Start with the 43 records that list both a phone number and an email address, then widen out channel by channel:
- Cold calling (209): 92.9% of records include a phone number for call campaigns, appointment setting and follow-ups.
- Website contact forms (78): businesses with a contact page URL give you another way in when no email is listed.
- Facebook messages (76): 33.8% have a Facebook page, a further channel when calls and emails go unanswered.
- CRM import: CSV and Excel files load into HubSpot, Salesforce, Zoho or Pipedrive, with city, state and postal code columns for assigning leads to reps.
Prospect Segments for Agencies in Illinois
Filter the website, rating and social columns to pull the offices that fit a specific service before you pitch:
- No website listed (57): 25% of offices in Illinois have no website on record, a direct prospect list for web designers and local SEO agencies.
- Rated 1 to 2 stars (45): businesses with poor Google ratings, prospects for reputation management and review generation services.
- No Facebook page (149): 66% have no Facebook page on record, an opening for social media management agencies.
Prioritize Cities Across Illinois
The 225 offices in Illinois are spread across 1 cities we track and many smaller towns, so rank areas before sending reps out:
- Beyond the big cities: 117 records (52%) sit outside the 1 cities with their own list, reachable by phone and email without travel.
- Postal code patches: records include postal codes, so each rep can get a compact patch with no overlapping accounts.
- Route planning: records include latitude and longitude, so you can map accounts and plan visit days around clusters.
Data Coverage for Offices in Illinois
225 records · verified September 8, 2026
- Phone numbers
- 209
- Email addresses
- 46
- Phone and email
- 43
- Websites
- 168
Google ratings· 167 rated (74%)
28% hold 5 stars
- 1-star rated
- 13
- 7.8% of rated
- 2-star rated
- 32
- 19.2% of rated
- 3-star rated
- 57
- 34.1% of rated
- 4-star rated
- 19
- 11.4% of rated
- 5-star rated
- 46
- 27.5% of rated
Social profiles:
- Facebook:76· 33.8%
- Instagram:71· 31.6%
- X (Twitter):60· 26.7%
- YouTube:45· 20%
- LinkedIn:32· 14.2%
Offices in Illinois are a phone-first, Facebook-heavy market: 92.9% list a phone number but only 20.4% publish an email. Among 167 rated offices, 28% hold 5 stars, a more even spread, so ratings separate businesses meaningfully.
Related Offices by Location
Browse datasets for Offices across nearby locations
Frequently asked questions about Offices in Illinois
Everything you need to know about our offices database for Illinois: data quality, coverage, freshness, pricing, and formats. Last updated September 8, 2026.
How many Offices are there in Illinois?
There are 225 offices in Illinois in our verified database, as of September 8, 2026.
This covers independent operators, regional chains, and enterprise-scale businesses, across every city in Illinois, for sales prospecting, competitive research, and territory planning.
How up to date is the Offices data for Illinois?
This dataset was last updated in September 8, 2026.
Business contact data decays at roughly 2–3% per month as businesses close, move, or change details, so we re-verify our most-purchased datasets on a rolling basis.
Every file is also run through email verification before delivery, and past buyers are offered discounted refreshed versions as updates ship.
What fields are included in the Offices database for Illinois?
Each record can include: business name, full address, phone number, email address, website URL, social profiles (LinkedIn, Facebook, Instagram, YouTube, X), review ratings, and category details, plus contact-page URLs where available.
Field coverage varies by record; the counts below and the free sample show you exactly what to expect before buying.
Where can I buy verified market intelligence data for Offices businesses in Illinois?
InfiniteLeadsHub provides verified market intelligence datasets for offices businesses in Illinois as a one-time purchase with no subscription.
Ideal for market research, sales planning, and business development.
How much does the Offices database for Illinois cost?
The complete offices leads database for Illinois costs $10 as a one-time payment.
You get instant access to all 225 records with no recurring fees, no per-record charges, and no seat limits.
It is a cost-effective alternative to subscription platforms that charge monthly for the same public business data.
Is this a cheaper alternative to subscription lead databases like ZoomInfo or Apollo?
Yes. For teams that need offices contacts in Illinois specifically, a one-time $10 file is usually far cheaper than subscription platforms, which typically charge thousands of dollars per year with contracts and per-seat pricing.
Subscriptions make sense for large sales teams needing continuous multi-industry access; a one-time targeted list makes sense when you know exactly which niche and geography you're selling into.
Can I preview a sample of the Offices data before buying?
Yes. A free sample dataset is available so you can evaluate data quality, field coverage, and format before purchasing.
The sample is a representative slice of the full Illinois offices database, including contact fields, social profiles, and ratings data.
How do I download the Offices list, and what file formats are available?
You get instant access after purchase. Files are delivered in CSV and Excel (XLSX) formats.
CSV and Excel import directly into CRMs like Salesforce, HubSpot, and Zoho and into any email platform.
How many Offices in Illinois have phone numbers?
209 offices in Illinois (93% of the database) include a phone number.
That makes the dataset effective for cold calling, telemarketing, and appointment setting campaigns.
How many Offices in Illinois have email addresses?
46 offices in Illinois (20%) include an email address.
Email remains one of the highest-ROI B2B outreach channels, making this subset ideal for cold email sequences, product announcements, and drip campaigns.
How many Offices in Illinois have both a phone number and an email address?
43 offices in Illinois have both a phone number and an email address.
Dual-contact records enable multi-channel outreach: combining calls with email follow-ups measurably improves response rates.
How many Offices in Illinois are active on social media?
Social profile coverage for offices in Illinois: 32 on LinkedIn, 76 on Facebook, 71 on Instagram, 45 on YouTube, 60 on X (Twitter).
Social presence signals digitally engaged businesses, which is useful for agencies pitching social media services, ad platforms building audiences, and vendors targeting digitally mature prospects.
How many Offices in Illinois have a website?
168 offices in Illinois (75%) have an active business website.
That is an indicator of digital maturity, and an ideal segment for SEO agencies, hosting providers, and SaaS platforms.
How many Offices in Illinois do not have a website?
57 offices in Illinois operate without a business website.
These are high-intent, overlooked prospects for web design agencies, local SEO providers, and Google Business optimization services.
What are the review ratings of Offices in Illinois?
Rating breakdown for offices in Illinois: 46 with a 5-star rating, 19 with a 4-star rating, 57 with a 3-star rating, 32 with a 2-star rating, 13 with a 1-star rating.
Top-rated businesses suit premium services and partnership proposals; lower-rated businesses are receptive prospects for reputation management, review tools, and operational software.
Can I get Offices data for other states or the entire US?
Yes. The national Offices database covers all 50 US states, and individual state and major-city lists are also available.
If you buy Illinois first, contact us and we'll credit your purchase toward the national upgrade.
Most multi-state buyers save money going national.
Is the Offices contact data in Illinois legal to use for B2B outreach?
Yes. All data is sourced exclusively from publicly available information: Google Business listings, company websites, social media profiles, and public business directories.
This is business contact information, not personal consumer data, making it appropriate for B2B prospecting.
We recommend following applicable regulations such as CAN-SPAM (US), CASL (Canada), and GDPR (EU-targeted campaigns) so your outreach remains fully compliant.