Voyager DB

Deep data on millions of local businesses, with verified decision-makers to reveal.

Contact Research

Hand-built prospect lists from human researchers, delivered in 24 hours.

People Search

Find owners and decision-makers by job title, seniority and department.

Chrome Extension

Coldlytics in your browser - prospect any business as you browse the web.

Integrations

Instantly, Smartlead, lemlist, Clay, HighLevel, plus Claude and ChatGPT over MCP.

Voyager DBDeep data on millions of local businesses, with verified decision-makers to reveal.Contact ResearchHand-built prospect lists from human researchers, delivered in 24 hours.People SearchFind owners and decision-makers by job title, seniority and department.Chrome ExtensionColdlytics in your browser - prospect any business as you browse the web.IntegrationsInstantly, Smartlead, lemlist, Clay, HighLevel, plus Claude and ChatGPT over MCP.

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Companies in Illinois

Browse 13,304 organizations within Illinois and explore potential business opportunities

13,304 companies in Illinois

Showing 1,601 to -1,650 of /13,304+

Need every Illinois company with verified decision-maker contacts? Search the full database in Coldlytics.

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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 →