List of Engineering consultants in Illinois
Illinois has 969 engineering consultants in this dataset, last verified September 6, 2026. It ranks 10th of 50 states with 2.9% of the national total, between Ohio (1,029) and Colorado (950).
Chicago is the largest city market we track, with 203 engineering consultants. That city holds 21% of the state total, with the rest spread across smaller cities and towns.
Email coverage mirrors the national picture, with 354 records (36.5%) including an email address against 34.4% across the United States. 931 (96.1%) list a phone number, and 338 carry both.
90.5% of engineering consultants in Illinois have a website, in line with the national average of 86.2%. Only 92 lack a site, so pitch redesigns and SEO rather than first-time builds.
Among the 557 rated engineering consultants in Illinois, 66% hold a 5-star average, in line with the national figure of 69%. 27 are rated 1 to 2 stars (4.8% of rated businesses, in line with the national 4.9%), a natural shortlist for reputation management and review software.
Social Media Reach
233
157
311
121
YouTube
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Engineering consultants List in Illinois
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| LOGO | Business Name | Address | City | State | Country | Phone | Website | Reviews | Rating | FB | IG | LI | YT | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Balance Technologies | Address | Wheaton | Illinois | United States | Email | Phone | — | 0 | 0 | — | — | — | — | |
I G Consulting | Address | Wheeling | Illinois | United States | Email | Phone | 7 | 4.4 | — | — | — | — | |||
 | Mistras Group - Services Division - South Holland, IL | Address | South Holland | Illinois | United States | Email | Phone | 0 | 0 | — | — | — | — | ||
 | MDST Design | Address | Warrenville | Illinois | United States | Email | Phone | 3 | 5 | — | — | — | |||
 | Innleadair LLC | Address | Rolling Meadows | Illinois | United States | Email | Phone | 0 | 0 | — | — | — | |||
 | Cintal, Inc. | Address | Peoria | Illinois | United States | Email | Phone | — | 5 | 4.8 | — | — | — | — | |
 | Chastain & Associates LLC | Address | Schaumburg | Illinois | United States | Email | Phone | 2 | 5 | — | |||||
 | DLZ | Address | Chicago | Illinois | United States | Email | Phone | 3 | 3.7 | ||||||
CBC Engineers & Associates | Address | Harrisburg | Illinois | United States | Email | Phone | 0 | 0 | — | — | — | — | |||
 | RLG Consulting Engineers | Address | Peoria | Illinois | United States | Email | Phone | 2 | 5 | — | |||||
 | Sunlight-Tech Inc | Address | Mokena | Illinois | United States | Email | Phone | 4 | 4 | — | — | — | — | ||
 | GFT | Address | Chicago | Illinois | United States | Email | Phone | 3 | 3.7 | — | — | — | — | ||
Engineering Excellence In Measurement Packages | Address | Niles | Illinois | United States | Email | Phone | — | 0 | 0 | — | — | — | — | ||
 | Fire By Design, Inc. | Address | Northbrook | Illinois | United States | Email | Phone | 7 | 5 | — | — | — | — | ||
 | Hey and Associates, Inc. | Address | Chicago | Illinois | United States | Email | Phone | 2 | 5 | — |
This is a randomized preview — the full database contains 969 records with complete field coverage.
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What You Can Do with the List of Engineering consultants in Illinois
This list is built for teams that sell to engineering consultants: B2B software vendors, white-label partners and managed IT providers. It covers 969 engineering consultants in Illinois, with the fields to call, email, segment and map them.
Who Sells to Engineering consultants in Illinois
Each of these buyers can work the 969 businesses in this list as a pipeline for a different product:
- B2B software vendors: Pitch CRM, project management, proposal and invoicing tools to the 969 engineering consultants in Illinois.
- White-label and outsourcing partners: Offer overflow or white-label work that firms can deliver under their own brand.
- Managed IT and office service providers: Sell IT support, business phones, backups and security to small offices.
Phone, Email and Facebook Outreach in Illinois
Start with the 338 records that list both a phone number and an email address, then widen out channel by channel:
- Cold calling (931): 96.1% of records include a phone number for call campaigns, appointment setting and follow-ups.
- Email sequences (354): 36.5% of records include an email address, enough to run a dedicated cold email campaign alongside calls.
- Facebook messages (233): 24% 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 engineering consultants that fit a specific service before you pitch:
- Rated 1 to 2 stars (27): businesses with poor Google ratings, prospects for reputation management and review generation services.
- No Facebook page (736): 76% have no Facebook page on record, an opening for social media management agencies.
Prioritize Cities Across Illinois
The 969 engineering consultants in Illinois are spread across 1 cities we track and many smaller towns, so rank areas before sending reps out:
- Beyond the big cities: 766 records (79%) 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 Engineering consultants in Illinois
969 records · verified September 6, 2026
- Phone numbers
- 931
- Email addresses
- 354
- Phone and email
- 338
- Websites
- 877
Google ratings· 557 rated (57%)
66% hold 5 stars
- 1-star rated
- 15
- 2.7% of rated
- 2-star rated
- 12
- 2.2% of rated
- 3-star rated
- 75
- 13.5% of rated
- 4-star rated
- 85
- 15.3% of rated
- 5-star rated
- 370
- 66.4% of rated
Social profiles:
- LinkedIn:311· 32.1%
- Facebook:233· 24%
- Instagram:157· 16.2%
- X (Twitter):139· 14.3%
- YouTube:121· 12.5%
Engineering consultants in Illinois are a mixed-channel, LinkedIn-heavy market: 96.1% list a phone number and 36.5% publish an email. Among 557 rated engineering consultants, 66% hold 5 stars, a mostly positive spread.
Related Engineering consultants by Location
Browse datasets for Engineering consultants across nearby locations
Frequently asked questions about Engineering consultants in Illinois
Everything you need to know about our engineering consultants database for Illinois: data quality, coverage, freshness, pricing, and formats. Last updated September 6, 2026.
How many Engineering consultants are there in Illinois?
There are 969 engineering consultants in Illinois in our verified database, as of September 6, 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 Engineering consultants data for Illinois?
This dataset was last updated in September 6, 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 Engineering consultants 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 Engineering consultants businesses in Illinois?
InfiniteLeadsHub provides verified market intelligence datasets for engineering consultants businesses in Illinois as a one-time purchase with no subscription.
Ideal for market research, sales planning, and business development.
How much does the Engineering consultants database for Illinois cost?
The complete engineering consultants leads database for Illinois costs $10 as a one-time payment.
You get instant access to all 969 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 engineering consultants 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 Engineering consultants 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 engineering consultants database, including contact fields, social profiles, and ratings data.
How do I download the Engineering consultants 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 Engineering consultants in Illinois have phone numbers?
931 engineering consultants in Illinois (96% of the database) include a phone number.
That makes the dataset effective for cold calling, telemarketing, and appointment setting campaigns.
How many Engineering consultants in Illinois have email addresses?
354 engineering consultants in Illinois (37%) 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 Engineering consultants in Illinois have both a phone number and an email address?
338 engineering consultants 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 Engineering consultants in Illinois are active on social media?
Social profile coverage for engineering consultants in Illinois: 311 on LinkedIn, 233 on Facebook, 157 on Instagram, 121 on YouTube, 139 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 Engineering consultants in Illinois have a website?
877 engineering consultants in Illinois (91%) 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 Engineering consultants in Illinois do not have a website?
92 engineering consultants 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 Engineering consultants in Illinois?
Rating breakdown for engineering consultants in Illinois: 370 with a 5-star rating, 85 with a 4-star rating, 75 with a 3-star rating, 12 with a 2-star rating, 15 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 Engineering consultants data for other states or the entire US?
Yes. The national Engineering consultants 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 Engineering consultants 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.