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The 45 largest companies in Northbrook

Tamtam tracks 45 companies headquartered in Northbrook. This list ranks all of them by number of employees on LinkedIn, led by Allstate, UL Solutions and Crate & Barrel. Their median headcount is 295. Half of them were founded in 1988 or later.

馃嚭馃嚫 Northbrook45 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
Allstateallstate.com

This company advocates for peace of mind, builds diverse teams, develops careers, and empowers people and communities through innovation and advocacy

Insurance 馃嚭馃嚫 Northbrook 55,012 1931
2
UL Solutionsul.com

Global provider of safety testing, certification, inspection, auditing, and advisory services ensuring product security, sustainability, and market trust.

Professional Services 馃嚭馃嚫 Northbrook 14,487 1894
3
Crate & Barrelcrateandbarrel.com

Leading home furnishings specialty retailer, offering curated products and custom delivery, with physical stores and online platforms across multiple brands globally.

Retail 馃嚭馃嚫 Northbrook 6,531 1962
4
Mu Sigma Inc.mu-sigma.com

A leading Big Data analytics company partnering with Fortune 500 firms to enhance decision-making, recognized for innovation and transformative solutions

Business Consulting and Services 馃嚭馃嚫 Northbrook 3,563 2004
5
IDEX Corporationidexcorp.com

The company manufactures mission-critical components used in everyday activities such as automotive safety, emergency rescue tools, and medical equipment

Manufacturing 馃嚭馃嚫 Northbrook 3,315 n/a
6
CF Industriescfindustries.com

Manufacturing and distributing clean energy products with efficient, cost-advantaged facilities and extensive storage and transportation networks across North America and the UK.

Chemical Manufacturing 馃嚭馃嚫 Northbrook 2,736 1946
7
Stepan Companystepan.com

A global manufacturer of specialty chemical products, Stepan collaborates with customers to provide innovative, high-quality solutions for various markets worldwide

Chemical Manufacturing 馃嚭馃嚫 Northbrook 2,210 1932
8
KapStone Paper and Packaging Corporationwestrock.com

Provides innovative paper and packaging products worldwide, partnering with brands to deliver quality, service, and sustainable growth solutions.

Paper and Forest Product Manufacturing 馃嚭馃嚫 Northbrook 1,116 2015
9
Lou Malnati's Pizzerialoumalnatis.com

A family-owned pizza business with deep roots in Chicago, known for their delicious deep dish pizzas made with quality ingredients and a secret recipe crust

Restaurants 馃嚭馃嚫 Northbrook 1,111 1971
10
Wiss, Janney, Elstner Associates, Inc.wje.com

Global firm of engineers, architects, and materials scientists providing innovative solutions for problem-solving, repairs, and prevention in the built world

Civil Engineering 馃嚭馃嚫 Northbrook 909 1956
11
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
12
KemperSportskempersports.com

The company is a leading provider of management services for golf courses, private clubs, sports venues, and destination resorts nationwide

Hospitality 馃嚭馃嚫 Northbrook 689 1978
13
F.E. Moran Group of Companiesfemoran.com

The company provides a range of mechanical and construction services for various markets, offering solutions for Building Automation, Engineering, Fire Protection, HVAC, Plumbing, and more

Construction 馃嚭馃嚫 Northbrook 662 1957
14
Hilco Globalhilcoglobal.com

Global independent financial services firm providing valuation, monetization, advisory, and capital solutions for tangible and intangible assets, specializing in maximizing value for companies

Financial Services 馃嚭馃嚫 Northbrook 626 n/a
15
Bell Flavors & Fragrancesbellff.com

A global company specializing in developing flavors and fragrances for various industries worldwide, with operations in 10 countries and distribution in over 100 countries

Chemical Manufacturing 馃嚭馃嚫 Northbrook 605 1912
16
PROMAN Staffing USApromanstaffing.com

National workforce solutions provider specializing in staffing for 3PL, distribution, and manufacturing industries Emphasizes industry expertise, worker safety, and job training

Staffing and Recruiting 馃嚭馃嚫 Northbrook 586 1999
17
Enduranceendurancewarranty.com

A leading provider of comprehensive auto protection plans, offering coverage for a wide range of vehicles and budgets with a focus on service and transparency

Motor Vehicle Manufacturing 馃嚭馃嚫 Northbrook 541 2006
18
Pinstripespinstripes.com

Unique experiential dining venue featuring Italian-American cuisine paired with bowling and bocce courts alongside extensive private banquet spaces for diverse group events.

Entertainment Providers 馃嚭馃嚫 Northbrook 511 2007
19
Encompass Insuranceencompassinsurance.com

A national insurance company offering high quality personal insurance combining all policies into one secure option Part of the Allstate family, exclusively available through independent agents

Insurance 馃嚭馃嚫 Northbrook 472 n/a
20
Old World Industriesowi.com

A 40-year-old company specializing in automotive and heavy duty products for extreme conditions, with a global presence and strong relationships

Chemical Manufacturing 馃嚭馃嚫 Northbrook 407 1973
21
USA Vein Clinics, Vascular, Fibroid and Oncology Centersusaveinclinics.com

State-of-the-art facilities offering comprehensive vein and vascular care by highly trained specialists, using tailored treatment approaches for various conditions

Hospitals and Health Care 馃嚭馃嚫 Northbrook 353 2005
22
FIRST Insurance Fundingfirstinsurancefunding.com

A Northbrook-based insurance financing company, FIRST Insurance Funding works with brokers and agencies nationwide to provide commercial property and casualty loan services

Financial Services 馃嚭馃嚫 Northbrook 350 1986
23
Josselynjosselyn.org

Community mental health center providing therapy, psychiatry, case management, art therapy, employment support, and youth intensive programs with a sliding fee scale for accessibility

Mental Health Care 馃嚭馃嚫 Northbrook 295 1951
24
ITOSitos.co

An international business alliance providing integrated HR and Payroll solutions for multinational companies in various industries in 23+ countries

Human Resources Services 馃嚭馃嚫 Northbrook 178 2008
25
Astellas Pharma USastellas.com

Astellas Pharma US, Inc is a pharmaceutical company in Illinois dedicated to improving global health through innovative and reliable products

Pharmaceutical Manufacturing 馃嚭馃嚫 Northbrook 177 2005
26
Dreams Retaildreamscorp.com

A vertically integrated sports memorabilia and licensed products business with strong brands, acquired by Fanatics in 2012 Leaders in industry

Retail 馃嚭馃嚫 Northbrook 177 1998
27
RoboThinkmyrobothink.com

A global STEM education franchise providing 21st century products and curriculum to prepare students for a future powered by AI and robots

Education 馃嚭馃嚫 Northbrook 160 2016
28
WellCare Home Healthwellcarehomehealth.net

A home health care company founded by nurses, focused on providing quality care tailored to patients' unique needs in their own homes

Hospitals and Health Care 馃嚭馃嚫 Northbrook 156 n/a
29
Ecentriaecentria.com

A company based in Northbrook, Illinois, specializing in providing services or products, likely related to e-commerce based on the name

Retail 馃嚭馃嚫 Northbrook 147 n/a
30
OpticsPlanet, Inc.opticsplanet.com

Specializing in technical gear, OpticsPlanet offers a vast selection of high-performance products from top brands, exceptional customer service, and knowledgeable team members

Retail 馃嚭馃嚫 Northbrook 131 2000
31
Hilco Valuation Services, LLChilcovaluationservices.com

A company providing asset valuation services to lenders, banks, private equity firms, and corporations for a variety of assets across different industries

Financial Services 馃嚭馃嚫 Northbrook 113 n/a
32
Corporate Imaging Concepts (CIC)home.corp-imaging.com

A company specializing in branded promotional products, technology-driven order fulfillment, and exceptional customer service to help organizations build stronger brands

Advertising Services 馃嚭馃嚫 Northbrook 84 1996
33
One Step Aheadwards.com

An online and catalog retailer specializing in problem-solving products for babies, children, and parents, with a focus on research, testing, and customer feedback

Consumer Goods 馃嚭馃嚫 Northbrook 82 1989
34
Total Insurance Servicestotins.com

Total Insurance Services offers tailored risk management and insurance solutions to businesses and individuals, leveraging strong partnerships for competitive pricing and innovative coverage options

Insurance 馃嚭馃嚫 Northbrook 65 1971
35
Indak Manufacturing Corporationindak.com

An American company with manufacturing locations in Illinois, Wisconsin, and Georgia, specializing in electronic and electro-mechanical design, assembly, and production for various industries

Appliances, Electrical, and Electronics Manufacturing 馃嚭馃嚫 Northbrook 40 1947
36
Northbrook Bank & Trustnorthbrookbank.com

Financial holding company offering community and commercial banking, wealth management, insurance premium financing, mortgage origination, and other services in the Midwest and Florida

Banking 馃嚭馃嚫 Northbrook 27 n/a
37
Levun, Goodman & Cohen, LLPlgclaw.com

Sophisticated law firm offering business law, tax consulting, estate planning, real estate services to businesses, law firms, family offices, private equity firms, and individuals

Law Practice 馃嚭馃嚫 Northbrook 27 1988
38
RAMCEL Precision Stamping and Manufacturing LLCramcel.com

A provider of custom stamping solutions with expertise in problem-solving, tooling design, and value-added operations for various industries since 1951

Industrial Machinery Manufacturing 馃嚭馃嚫 Northbrook 26 1951
39
IRON Financialironfinancial.com

An independent investment management firm offering innovative portfolios across core and alternative asset classes with a focus on high-quality, low-cost investments

Financial Services 馃嚭馃嚫 Northbrook 26 1994
40
Sheridan Road Financial, a division of HUB Internationalsheridanroad.com

Provider of financial services including investment consulting, executive benefits, wealth management, and financial planning to help Americans retire and pursue their post-retirement goals

Financial Services 馃嚭馃嚫 Northbrook 13 2005
41
Hilco Corporate Finance, LLChilcocf.com

A financial services company specializing in valuation, monetization, and advisory solutions to businesses

Investment Banking 馃嚭馃嚫 Northbrook 13 n/a
42
MM Ltd.michaelmenn.com

A premier source for architectural design and construction services, offering excellence in renovation, remodeling, additions, and new construction projects for both residential and commercial clients

Architecture and Planning 馃嚭馃嚫 Northbrook 6 n/a
43
Warehouse Systems Incwarehousesys.com

This company specializes in integrating distribution fulfillment systems to improve operational efficiency and productivity with various technologies and software solutions

Warehousing and Storage 馃嚭馃嚫 Northbrook 6 1988
44
North Light Specialty Insurance Companynorthlightspecialty.com

Specializes in providing niche insurance products and services to meet the unique needs of clients in the insurance industry

Insurance 馃嚭馃嚫 Northbrook 5 n/a
45
Len Roofing & Remodelinglenroofing.com

A family-owned company offering residential remodeling and improvement services in the Chicagoland area with full installation and servicing capabilities for both commercial and residential projects

Construction 馃嚭馃嚫 Northbrook 4 n/a

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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 Oct 24, 2026.

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