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Senior software engineering professionals in Illinois

32,931 senior software engineering professionals in Illinois, every one with a LinkedIn profile: 17,262 with a work email (16,735 checked in 2026) and 5,916 with a phone (4,989 mobile). Updated 2026-10-04. Filter further, then get the list as CSV, in your CRM or by API.

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By industry

  • Software Development: 4,042
  • IT Services and IT Consulting: 4,034
  • Financial Services: 3,729
  • Hospitals and Health Care: 3,188
  • Machinery Manufacturing: 2,115
  • Insurance: 1,911
  • Telecommunications: 1,563
  • Technology, Information and Internet: 1,191
  • Business Consulting and Services: 789
  • Medical Equipment Manufacturing: 670

By company size

  • 10,000+: 14,540
  • 1,000-4,999: 6,192
  • 100-249: 3,353
  • 5,000-9,999: 2,923
  • 500-999: 2,187
  • 250-499: 1,901
  • 20-99: 1,483
  • 5-19: 267
  • 1-4: 85

Companies in Illinois with the most decision makers

  • Northern Trust: 5,200 decision makers
  • Gallagher: 5,143 decision makers
  • Takeda: 4,433 decision makers
  • Abbott: 3,987 decision makers
  • Mars: 2,927 decision makers
  • Allstate Financial Services: 2,569 decision makers
  • State Farm Inc: 2,431 decision makers
  • GE Healthcare: 2,287 decision makers
  • RSM US LLP: 2,239 decision makers
  • Hub International Ltd: 2,238 decision makers

Roles in Illinois

Industries in Illinois

The same list elsewhere

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