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List of subscription businesses in Illinois

Tamtam tracks 160 subscription businesses headquartered in Illinois. This list ranks the 50 largest by number of employees on LinkedIn, led by Health Care Service Corporation, Exelon and Morningstar. Their median headcount is 1,297. Half of them were founded in 1988 or later. The most common headquarters are Chicago (31), Schaumburg (4) and Itasca (3).

馃嚭馃嚫 Illinois50 companiesUpdated Nov 11, 2026

These Illinois-based subscription businesses include large enterprises and mid-sized firms across diverse sectors. Health Care Service Corporation provides health coverage, while Exelon is a utility company. Morningstar offers investment insights and data, and Camping World retails RVs and accessories. Paylocity delivers cloud-based HR and payroll software, and Cision specializes in media intelligence.

The data reveals a strong concentration of headquarters in Chicago, with the majority of the largest companies based in the city. The companies span industries such as healthcare, utilities, financial services, retail, and a notable presence of software development firms.

#CompanyIndustryHeadquarters EmployeesFounded
1
Health Care Service Corporationhcsc.com

Provides health coverage for employers, individuals, and families, including Medicare and Medicaid plans, plus related health care products and services.

Hospitals and Health Care 馃嚭馃嚫 Chicago 21,090 1936
2
Exelonexeloncorp.com

A leading utility company providing reliable and affordable energy to over 10 million customers in urban areas across multiple states, with a commitment to sustainability and community support

Utilities 馃嚭馃嚫 Chicago 20,291 n/a
3
Morningstarmorningstar.com

Independent investment insights, data, and research for various global markets including managed products, private capital, debt securities, and comprehensive asset management services.

Financial Services 馃嚭馃嚫 Chicago 12,028 1984
4
Camping Worldcampingworld.com

A nationwide retailer offering RVs, accessories, services, and expert advice to enhance RV and outdoor experiences since 1966

Retail 馃嚭馃嚫 Lincolnshire 7,755 1966
5
Paylocitypaylocity.com

Award-winning provider of cloud-based HR and payroll software solutions, helping businesses automate processes, attract talent, and build employee connections

Software Development 馃嚭馃嚫 Schaumburg 7,046 1997
6
Cisioncision.com

A global leader in media intelligence and communication solutions, equipping professionals with tools to excel in today's data-driven world

Public Relations and Communications Services 馃嚭馃嚫 Chicago 3,839 n/a
7
Cooper's Hawk Winery and Restaurantschwinery.com

An elegant tasting room and scratch kitchen restaurant chain with a large wine club, multiple locations, award-winning wines, and celebrity partnerships

Food and Beverage Services 馃嚭馃嚫 Downers Grove 3,605 2005
8
Applied Systemswww1.appliedsystems.com

A leading provider of innovative cloud software for the insurance industry, driving transformation through digitization, automation, and new partnerships

Software Development 馃嚭馃嚫 Chicago 2,813 1983
9
Chamberlain Groupchamberlaingroup.com

A global leader in intelligent access technology, providing seamless, secure access to homes and businesses through innovative products and software solutions

Software Development 馃嚭馃嚫 Oak Brook 2,781 1954
10
Home Chefhomechef.com

Innovative meal kit company fostering autonomy, creativity, and growth for employees Award-winning team focused on customer satisfaction and fun work environment

Food and Beverage Services 馃嚭馃嚫 Chicago 2,766 n/a
11
American Marketing Associationama.org

Provides marketing and sales professionals with industry insights, professional certification, academic journals, training, and conferences through a global community.

Non-profit Organizations 馃嚭馃嚫 Chicago 2,669 1937
12
CCC Intelligent Solutionscccis.com

Cloud platform delivering AI-driven solutions connecting insurers, repairers, automakers, and suppliers for optimized insurance and claims experiences.

Software Development 馃嚭馃嚫 Chicago 2,417 n/a
13
Flexeraflexera.com

Provides comprehensive visibility and actionable insights on entire IT ecosystems, enabling organizations to optimize spend, mitigate risk, and achieve positive business outcomes.

Software Development 馃嚭馃嚫 Itasca 2,096 2008
14
Society of Women Engineerslinktr.ee

A not-for-profit organization empowering women in engineering through training, scholarships, networking, and advocacy to advance in the field

Non-profit Organizations 馃嚭馃嚫 Il 1,881 1950
15
Relativityrelativity.com

A software company offering RelativityOne, a SaaS product for data organization, truth discovery, and action during litigation and investigations in various sectors globally

Software Development 馃嚭馃嚫 Chicago 1,856 n/a
16
Sprout Social, Inc.sproutsocial.com

Global leader providing social media management, publishing, engagement, customer care, advocacy, and AI-powered business intelligence software to over thirty thousand brands worldwide.

Software Development 馃嚭馃嚫 Chicago 1,771 2010
17
American College of Surgeonsfacs.org

Dedicated to improving surgical patient care worldwide with membership opportunities, quality programs, surgical registries, and education to enhance outcomes

Non-profit Organizations 馃嚭馃嚫 Chicago 1,644 1913
18
American Dental Associationada.org

Advocates for dentists, dental science, public oral health. Provides resources for professionals, researches, and champions public health initiatives.

Non-profit Organizations 馃嚭馃嚫 Chicago 1,599 1859
19
Literalitera.com

It specializes in legal technology, offering AI-driven solutions for document management, due diligence, and collaboration for legal teams globally.

Artificial Intelligence 馃嚭馃嚫 Chicago 1,535 n/a
20
G2g2.com

The company is a leading software marketplace that provides authentic peer reviews to help millions of people make smarter software decisions

Technology, Information and Internet 馃嚭馃嚫 Chicago 1,509 2012
21
Spherasphera.com

Sphera provides ESG performance and risk management software, data, and consulting services for EHS&S, operational risk, product stewardship, and SCRM

IT Services and IT Consulting 馃嚭馃嚫 Chicago 1,448 2016
22
Trading Technologiestradingtechnologies.com

Provider of SaaS trading platform connecting global exchanges, offering tools for execution, risk management, analytics, and post-trade services.

Software Development 馃嚭馃嚫 Chicago 1,428 1994
23
Protection 1 Security Solutionsprotection1.com

A leading company in the electronic security industry, formed through a merger, on the way to complete integration and becoming unified

Security and Investigations 馃嚭馃嚫 Romeoville 1,399 1988
24
ISACAisaca.org

A global association advocating for professionals in information security, risk management, and governance through certifications, standards, and knowledge sharing

Industry Associations 馃嚭馃嚫 Schaumburg 1,378 1969
25
College of American Pathologists (CAP)cap.org

An organization of pathologists dedicated to excellence in pathology and laboratory medicine, advocating for health advancements and shaping the future of healthcare

Hospitals and Health Care 馃嚭馃嚫 Northfield 1,297 1947

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26
iManageimanage.com

The company provides an intelligent, cloud-enabled knowledge work platform using AI to uncover and activate organizational content for informed decisions and collaboration

Software Development 馃嚭馃嚫 Chicago 1,276 2015
27
PreSales Collectivepresalescollective.com

The company aims to elevate the role of PreSales globally by providing resources, knowledge, networking, and mentorship for career development in PreSales

Think Tanks 馃嚭馃嚫 Chicago 1,202 2020
28
American Academy of Pediatricsaap.org

A professional membership organization of pediatricians dedicated to promoting the health and well-being of infants, children, adolescents, and young adults through advocacy and education

Non-profit Organizations 馃嚭馃嚫 Itasca 1,198 1930
29
Factor_factor75.com

This company offers no-nonsense, chef-prepared meals made with ingredients of integrity, expert-approved nutrition, and restaurant-quality cuisine for people on the go

Food and Beverage Services 馃嚭馃嚫 Batavia 1,140 2013
30
Jewel Food Storesjewelosco.com

A grocery company with a rich history, offering a wide range of products at fair prices with a focus on customer care

Retail Groceries 馃嚭馃嚫 Itasca 1,130 n/a
31
West Unified Communications Serviceswestuc.com

This company develops cloud-based technology for enterprise collaboration, offering solutions like conferencing, team collaboration, and cloud contact center services

Telecommunications 馃嚭馃嚫 Chicago 1,068 1991
32
Daniels Healthdanielshealth.com

A global leader in healthcare innovation, providing safer solutions for medical waste management, with a focus on sustainability and staff safety

Hospitals and Health Care 馃嚭馃嚫 Chicago 1,064 1986
33
Big Ten Networklinktr.ee

An internationally distributed network covering the Big Ten Conference, providing 24/7 coverage of over 2,300 events for fans and alumni nationwide

Broadcast Media Production and Distribution 馃嚭馃嚫 Chicago 1,060 2007
34
SITEsiteglobal.com

Global organization supporting incentive travel industry, connecting travel to business results with professional development, certification, and business connections for members worldwide

Industry Associations 馃嚭馃嚫 Chicago 1,049 1973
35
XSport Fitnessxsportfitness.com

A rapidly expanding fitness chain offering top-of-the-line equipment, personal training, educational programs, dietary supplements, and fitness apparel at various locations

Wellness and Fitness Services 馃嚭馃嚫 Chicago 1,046 1997
36
Origami Riskorigamirisk.com

Innovative provider of integrated risk, compliance, safety, healthcare, and P&C insurance SaaS solutions for various industries worldwide

Software Development 馃嚭馃嚫 Chicago 1,011 2009
37
Modern Healthcaremodernhealthcare.com

Leading source of healthcare news, providing in-depth analysis and insights on industry events, trends, and research through various platforms for healthcare executives

Book and Periodical Publishing 馃嚭馃嚫 Chicago 893 1976
38
Teletrac Navmanteletracnavman.com

Global industrial technology company offering connected mobility solutions for vehicle and equipment asset management, leveraging AI for operational insights and sustainability

Software Development 馃嚭馃嚫 Northbrook 858 1988
39
ActiveCampaignactivecampaign.com

Customer experience automation platform offering pre-built automations, CRM, email marketing, and integrations for personalized multi-channel customer engagement.

Software Development 馃嚭馃嚫 Chicago 840 2003
40
Chicago Tribune Media Groupchicagotribune.com

Provides diverse media and marketing solutions reaching millions monthly through newspapers, digital platforms, and niche regional publications in Chicago area.

Newspaper Publishing 馃嚭馃嚫 Chicago 825 1847
41
project44project44.com

Transforms fragmented logistics management into unified intelligence, bringing certainty to global supply chain operations with intelligent transportation, end-to-end visibility, yard management and last mile solutions.

Software Development 馃嚭馃嚫 Chicago 809 2014
42
IPCelectronics.org

An industry association guiding electronics manufacturing through changes, providing standards, training, research, and advocacy to support global industry success

Non-profit Organizations 馃嚭馃嚫 Bannockburn 782 1957
43
Keeper Security, Inc.keepersecurity.com

Provides a unified, cloud-native cybersecurity platform protecting users, devices, and infrastructure from cyber attacks with zero-knowledge and zero-trust security.

Software Development 馃嚭馃嚫 Chicago 772 2011
44
Netrix Globalnetrixglobal.com

A global provider of cybersecurity, application development, and IT managed services, recognized for its award-winning solutions

IT Services and IT Consulting 馃嚭馃嚫 Bannockburn 771 1989
45
Impact Networking, LLCimpactmybiz.com

Providing expert-driven managed services including IT, cybersecurity, marketing, AI, and digital transformation to help businesses grow and succeed.

IT Services and IT Consulting 馃嚭馃嚫 Lake Forest 764 1999
46
American College of Healthcare Executivesache.org

An organization advancing healthcare leadership excellence through lifelong learning, integrity, diversity, and inclusion, offering valuable knowledge, networking opportunities, and professional development

Non-profit Organizations 馃嚭馃嚫 Chicago 734 1913
47
AVMA (American Veterinary Medical Association)avma.org

A leading advocate for the veterinary profession, promoting and advancing the needs of veterinarians and animals through advocacy, education, and accreditation programs

Veterinary Services 馃嚭馃嚫 Schaumburg 705 1863
48
HIMSShimss.org

A global non-profit organization advising and transforming the health ecosystem through expertise in innovation, policy, workforce development, research, and analytics

Non-profit Organizations 馃嚭馃嚫 Chicago 702 n/a
49
Park Lane Jewelryparklanejewelry.com

A direct sales jewelry company founded in 1955, offering quality jewelry with career opportunities for women, weekly pay, and unlimited incentives

Retail Luxury Goods and Jewelry 馃嚭馃嚫 Schaumburg 695 1955
50
Quillquill.com

The company delivers office supplies to support meaningful work that positively impacts coworkers, clients, and customers, with top-ranked customer service

Retail Office Equipment 馃嚭馃嚫 Lincolnshire 677 1956

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 11, 2026.

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