The 26 largest companies in North Charleston (2026 list)

#	Company	Industry	Headquarters	Employees	Founded
1	Ingevity ingevity.com This company develops and manufactures solutions for purifying, protecting, and enhancing the world through specialty chemicals, biodegradable plastics, and activated carbon products	Chemical Manufacturing	🇺🇸 North Charleston	1,054	n/a
2	AstenJohnson astenjohnson.com Global manufacturer of pulp & paper machine clothing, filaments, technical fabrics, and nonwovens for various industries, prioritizing quality, innovation, and customer relationships	Paper and Forest Product Manufacturing	🇺🇸 North Charleston	661	1790
3	Charleston County Government charlestoncounty.gov A leading county in South Carolina known for its rich culture, economic activity, historic preservation, and environmental stewardship	Government Administration	🇺🇸 North Charleston	577	1948
4	Water Mission watermission.org A Christian engineering nonprofit providing sustainable safe water solutions in developing countries, refugee camps, and disaster areas, impacting millions globally	Non-profit Organizations	🇺🇸 North Charleston	545	2001
5	South Carolina Federal Credit Union scfederal.org A credit union in South Carolina providing exceptional financial services, prioritizing member satisfaction, and recognized as a top employer nationally	Banking	🇺🇸 North Charleston	466	1936
6	City of North Charleston northcharleston.org The company promotes smart growth and sustainable living in North Charleston, offering a vibrant community with top shopping, entertainment, and attractions	Government Administration	🇺🇸 North Charleston	434	n/a
7	The Indigo Road Hospitality Group theindigoroad.com Hospitality group founded in Charleston, SC in 2009, known for top restaurants, boutique hotels, commitment to excellence, and culinary excellence	Hospitality	🇺🇸 North Charleston	425	2009
8	CreateSpace kdp.amazon.com A leading provider of independent publishing tools enabling authors, filmmakers, and musicians to produce, publish, and distribute their work globally	Book and Periodical Publishing	🇺🇸 North Charleston	410	n/a
9	Palmetto Primary Care Physicians palmettoprimarycare.com Leading multi-specialty group practice in South Carolina with over 90 providers offering primary and specialty care, innovative patient-centered approach, and state-of-the-art services	Hospitals and Health Care	🇺🇸 North Charleston	367	1996
10	Atlas Tech atlas-tech.com A Veteran-Owned Small Business specializing in IT services, competing for Department of Defense contracts, with a focus on integrity and community impact	IT Services and IT Consulting	🇺🇸 North Charleston	324	1997
11	Charleston County Sheriff's Office sheriff.charlestoncounty.gov The Charleston County Sheriff's Office is a large, full-service law enforcement agency dedicated to serving and protecting the diverse population of Charleston County	Law Enforcement	🇺🇸 North Charleston	290	n/a
12	Palmetto Goodwill palmettogoodwill.org A dynamic and inclusive organization empowering individuals through employment opportunities, skills development, and community support since the 1970s	Non-profit Organizations	🇺🇸 North Charleston	255	1979
13	Charleston International Airport iflychs.com The company owns and operates multiple airports in Charleston County, coordinating with FAA and SC Aeronautics Commission, governed by an 11-member board	Airlines and Aviation	🇺🇸 North Charleston	173	n/a
14	Detyens Shipyards, Inc.detyens.com A shipyard offering comprehensive repair and service solutions on the East Coast USA, ensuring quick and smooth return to service	Shipbuilding	🇺🇸 North Charleston	169	1961
15	The Urban Electric Co.urbanelectric.com Crafts bench-made interior and exterior lighting fixtures in Charleston for global designers, offering custom finishes through traditional artisanal methods and modern engineering.	Retail Luxury Goods and Jewelry	🇺🇸 North Charleston	162	2003
16	Charleston County EMS charlestoncounty.org Providing emergency medical care, transportation, and education to the citizens and visitors of Charleston County, South Carolina through advanced life support services	Public Safety	🇺🇸 North Charleston	149	1973
17	Bosch Charleston Plant bosch.us Manufacturing facility specializing in gasoline fuel injection systems, brake systems, and electric motors, utilizing automation, robotics, artificial intelligence, and Industry 40 methods	Motor Vehicle Parts Manufacturing	🇺🇸 North Charleston	142	1974
18	Sanders Brothers Construction Company sandersbrothers.com Family-owned general contractor specializing in street & road construction and asphalt manufacturing Offers in-house services, top-quality equipment, and employee-focused benefits for long-term success	Construction	🇺🇸 North Charleston	138	1964
19	Adapt Forward adaptforward.com Provides defensive security, NSA-certified red team, risk compliance, secure cloud, and custom cyber tools for government agencies.	Computer and Network Security	🇺🇸 North Charleston	89	2015
20	Motivated Marketing LLC motivatedmarketing.com A full-service marketing agency offering a wide range of traditional and digital advertising services, customized to help clients grow their business	Advertising Services	🇺🇸 North Charleston	68	2007
21	GEDORE Tools, Inc.gedoretools.com A subsidiary specializing in manufacturing tools, part of the Gedore Group with headquarters in Germany and a global presence in over 70 countries	Mechanical Or Industrial Engineering	🇺🇸 North Charleston	51	1919
22	Glasscorp glasscorp.com The company specializes in subcontracting commercial glazing projects, providing expertise and services in the glass installation industry	Nonresidential Building Construction	🇺🇸 North Charleston	26	2011
23	Ai Insurance Services aiinsure.com A nationwide independent insurance and financial services company, with multilingual experts, offering various policies from different insurance companies at competitive prices	Insurance Agencies and Brokerages	🇺🇸 North Charleston	19	2008
24	Williford Roofing & Construction willifordroofing.com Family-owned home improvement company specializing in roofing, remodeling, siding, windows, painting, and more, with a 15-year workmanship guarantee and exceptional customer satisfaction	Construction	🇺🇸 North Charleston	7	1997
25	Alpha Sheet Metal Works, Inc.alphamachine.com Specializing in custom sheet metal work and specialized equipment fabrication, we offer prototype services and small to medium run manufacturing for various industries	Machinery Manufacturing	🇺🇸 North Charleston	5	n/a
26	High Tide Technology, LLC hightidetech.co A technology firm focused on developing innovative solutions for modern challenges, with expertise in cutting-edge technologies and a commitment to growth	IT Services and IT Consulting	🇺🇸 North Charleston	2	2003

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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.

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