| # | Company | Employees |
|---|---|---|
| 1 | 21,907 | |
| 2 |
Pactiv Evergreen Inc.pactivevergreen.com
Production and supply of sustainable packaging products for foodservice, retail, and consumer goods industries focusing on innovation and environmental responsibility. |
7,167 |
| 3 |
Packaging Corporation of Americapackagingcorp.com
A leading producer of containerboard and uncoated freesheet in North America, offering innovative packaging solutions with a focus on quality and customer service |
6,952 |
| 4 |
Del Tacodeltaco.com
Established in 1964, this California-based company operates nearly 600 restaurants across 16 states offering Mexican and American made-to-order items using fresh ingredients |
5,131 |
| 5 |
Hospirahospira.com
This company, now part of Pfizer Inc, focuses on providing more information through their LinkedIn account |
4,102 |
| 6 |
HealthFitnesshealthfitness.com
Designs and manages fitness programs for companies, fostering health, engagement, and community across diverse client populations nationwide. |
3,452 |
| 7 |
D-Link USAdlink.com
Global leader in networking, providing high-quality solutions for businesses of all sizes in switching, wireless, surveillance, storage, and security Offering integrated, innovative, and competitive solutions |
2,915 |
| 8 |
Reynolds Consumer Productsreynoldsconsumerproducts.com
Manufacturer and distributor of household essentials including aluminum foil, plastic wrap, waste bags, and kitchen products under multiple brands. |
2,648 |
| 9 |
Johnny Rocketsjohnnyrockets.com
This company is committed to serving high quality burgers, shakes, and fries using fresh ingredients and providing exceptional service in a casual, fun atmosphere |
1,937 |
| 10 |
Toshiba Businessbusiness.toshiba.com
The company offers copiers, printers, managed document services, and digital signage solutions for businesses across the Americas, specializing in innovative communication management |
1,545 |
| 11 |
BDS Connected Solutions, LLC.bdssolutions.com
BDS Connected Solutions provides innovative Connected Commerce solutions blending advocacy, training, retail, virtual, and digital environments to drive sales goals |
1,439 |
| 12 |
Lake Forest Collegelakeforest.edu
This company empowers individuals to pursue their passions and build their dream careers by providing tools and support for personal growth and success |
1,157 |
| 13 |
Trustmarktrustmarkbenefits.com
National company offering voluntary insurance, self-funded health plans, and wellness programs to support employee health and employer cost management. |
1,143 |
| 14 |
Northwestern Medicine Catherine Gratz Griffin Lake Forest Hospitallfh.org
A 201-bed community hospital part of Northwestern Medicine with 700 physicians, offering 90 medical specialties and recognized for nursing excellence |
1,038 |
| 15 |
Chicago Bearschicagobears.com
This company, inspired by the founding principles of Chicago and the Bears, values diversity and provides equal opportunities for all applicants |
791 |
| 16 |
Impact Networking, LLCimpactmybiz.com
Providing expert-driven managed services including IT, cybersecurity, marketing, AI, and digital transformation to help businesses grow and succeed. |
764 |
| 17 |
STAAR Surgicalstaar.com
Designs, develops, manufactures, and markets implantable lenses for eyes, offering visual freedom by reducing reliance on glasses or contact lenses, worldwide. |
734 |
| 18 |
Akorn Pharmaceuticalsakorn.com
Develops, manufactures, and markets prescription, consumer health, and animal health products, including ophthalmics, injectables, and oral liquids. |
704 |
| 19 |
Saddleback Churchsaddleback.com
A place to discover purpose and belonging at a welcoming church community for individuals at all stages of life Welcome home |
661 |
| 20 |
Boise Paperboisepaper.com
An industry leader in manufacturing high quality printing and converting papers, committed to delivering innovative solutions and sustainable practices |
462 |
| 21 |
theLenderwholesale.thelender.com
Mortgage services, including NonQM loans, for real estate, aiming to transform the mortgage landscape with innovation and excellence for clients. |
419 |
| 22 |
Portfolioportfolioreinsurance.com
This company provides reinsurance and F&I programs for auto, RV, and powersports dealers, focusing on transparency, compliance, and consumer protection |
390 |
| 23 |
Applied Compositesappliedcomposites.com
A leading provider of complex composite components, assemblies, engineering, and tooling for aerospace, defense, and space systems markets, delivering customer satisfaction through continuous improvement processes |
381 |
| 24 |
Consumers Credit Unionmyconsumers.org
Established in 1930 in Gurnee, IL, Consumers Credit Union is a large credit union with $32 billion in assets, serving over 200,000 members Providing personalized financial services |
368 |
| 25 |
Multi Media, LLCmultimediallc.com
A full-service provider offering live streaming video platforms and online community forums for engaging audiences with high-quality, interactive content |
366 |
| 26 |
iBase-tibaset.com
iBase-t simplifies manufacturing with digital solutions that optimize production, quality, and maintenance processes for enhanced collaboration and operational excellence |
357 |
| 27 |
TEKHQStekhqs.com
A technology firm based in the USA and Pakistan, specializing in software development, digital transformation, and integration of remote teams |
249 |
| 28 |
The City of Lake Forestcityoflakeforest.com
Municipal government in Lake Forest, Illinois, established in 1861 Serving a population of 19,375, part of the Chicago metropolitan area |
249 |
| 29 |
Wonderwareaveva.com
A company that creates innovative and reliable industrial software to empower individuals, teams, and businesses of all sizes to achieve extraordinary success |
209 |
| 30 |
Sole Technologysoletechnology.com
A global leader in action sports footwear and apparel, known for innovation, style, and durability, founded by a former world champion skateboarder |
186 |
| 31 |
Lake Forest Graduate School of Managementlfgsm.edu
The company focuses on bringing real-world experiences to business education and leadership development, cultivating great leaders through a unique approach |
176 |
| 32 |
USA Fire Protectionusafireprotectioninc.com
A leading fire protection contractor offering design, installation, testing, and maintenance of fire sprinkler, detection, suppression, and special hazards systems in the Midwest |
171 |
| 33 |
Sho-Link, Inc.sho-link.com
Nationwide I&D provider offering expert labor for trade shows, museums, events, and retail installations, specializing in managing unexpected challenges for clients' visions |
155 |
| 34 |
Comtrans, Ltd.aw2logistics.com
Company specializing in Tradeshow Transportation, with extensive experience and resources to provide high-level service and anticipate potential challenges for clients globally |
149 |
| 35 |
Ellisonellison.com
A global leader in arts and crafts products, providing innovative die-cutting machines, accessories, and creative tools to inspire makers worldwide |
149 |
| 36 |
Bridge Alternativesbridgealternatives.com
A leading alternative investment services platform offering capital introductions, derivatives brokerage, outsourced CFO/COO, and expertise in digital assets Visit our website for more information |
71 |
| 37 |
FreightPOPfreightpop.com
Cloud-based logistics software streamlining transportation management for inbound and outbound freight across various modes, offering savings through rate shopping, auditing, and automation |
65 |
| 38 |
Lake Forest Bank & Trustlakeforestbank.com
This financial holding company offers community and commercial banking, wealth management, insurance premium financing, mortgage origination, and more across various locations |
55 |
| 39 |
M4Dm4dllc.com
A leading medical device manufacturer specializing in endovascular technologies, offering services from design to full-scale manufacturing, focused on saving lives through innovation |
44 |
| 40 |
Liquidmetal Technologiesliquidmetal.com
Specializing in advanced molding solutions, this company offers amorphous metal technology for precise, strong, and corrosion-resistant metal parts in various markets |
43 |
| 41 |
Segue Corporationseguecorp.com
Global logistics company offering end-to-end supply chain solutions for consumer and computer electronics industry, including 3PL services, refurbishment, remarketing, and warranty management |
30 |
| 42 |
VentureDNAventuredna.com
Boutique private equity firm investing in early stage companies globally, offering mentor capital, strategic business planning, marketing, funding, and consulting services Headquarters in Chicago |
16 |
| 43 |
Delta C. Construction, Inc.deltaremodels.com
Experienced general contractors specializing in home renovation, remodeling, and repair projects, with a focus on kitchens, bathrooms, and basements Efficient, cost-effective, and quality service provider |
15 |
| 44 |
Graphic Marking Systemsshopgms.com
Graphic Marking Systems provides on-demand short run labeling solutions, including equipment, software, and training, with a focus on customer support and tailored services |
14 |
| 45 |
Haussmann Financialhaussmannfinancial.com
Financial services company specializing in services such as investing, wealth management, and retirement planning, located in Lake Forest, California, United States |
11 |
| 46 |
Sonorous Neurovascularsonorousnv.com
A team with over 50 years of combined expertise in the Medical Device Industry, specializing in engineering innovative products, clinical and regulatory affairs, and market access |
4 |
| 47 |
Quest International Consultingqiconsult.com
Consulting firm providing regulatory affairs, quality consulting, and compliance services to pharmaceutical, biopharmaceutical, and medical device companies to expedite product market entry |
4 |
| 48 |
PAC Capitalpaccapitalgroup.com
An investment management firm focused on generating alpha across markets, offering services to individuals, families, and institutions with a client-oriented approach |
3 |
| 49 |
Adamant Valvesadamantvalves.com
A leading manufacturer of high precision stainless steel sanitary valves, pumps, and fittings for various industries, with a focus on quality, performance, and innovation |
3 |
| 50 |
Bradley Purcell, State Farm Agentbradleypurcell.com
A leading insurer in the United States, offering a wide range of financial products and services to protect assets and provide growth strategies for clients |
2 |
Turn this list into pipeline
Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.
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.
The same list elsewhere in United States
- The largest companies in the United States 91,669
- The largest companies in California 12,813
- The largest companies in New York State 10,485
- The largest companies in Texas 8,086
- The largest companies in Florida 4,945
- The largest companies in Illinois 4,175
- The largest companies in Pennsylvania 3,110
- The largest companies in Massachusetts 3,093
- The largest companies in Georgia 2,632
- The largest companies in Ohio 2,618
- The largest companies in New Jersey 2,569
- The largest companies in Virginia 2,503
- The largest companies in Michigan 2,346
- The largest companies in North Carolina 2,174
- The largest companies in Alabama 1,806
- The largest companies in Washington State 1,785
- The largest companies in Colorado 1,774
- The largest companies in Minnesota 1,700
- The largest companies in Maryland 1,527
- The largest companies in Wisconsin 1,482
- The largest companies in New York 6,920
- The largest companies in San Francisco 2,030
- The largest companies in Houston 1,791
- The largest companies in Chicago 1,668