biggest companies in Hagerstown, MD

G4S is the world's leading international security solutions group. They specialise in outsourced business processes in sectors where security and safety risks are considered a strategic threat. G4S has a truly global business with large established market positions in developed markets and outstanding positions in fast growing emerging markets G4S has a unique global footprint with operations in over 110 countries, including a strong presence in higher growth developing markets. G4S employ 623,000 people world-wide, and are the largest security solutions provider in the world. Whether you require a security solution in one location or across multiple continents, their global experience is always on hand to bring you advantages.

China Communications Construction Company, Ltd. is a publicly traded, multinational engineering and construction company primarily engaged in the design, construction and operation of infrastructure assets, including highways, bridges, tunnels, railways, subways, airports, and marine ports.

Tenet Healthcare Corporation is a diversified healthcare services company with 115,000 employees united around a common mission: to help people live happier, healthier lives. Through its subsidiaries, partnerships and joint ventures, including United Surgical Partners International, this company operates general acute care and specialty hospitals, ambulatory surgery centers, urgent care centers and other outpatient facilities.

Fiserv is a global organization with more than 13,000 clients and 21,000 associates worldwide and takes pride in its mission to enable clients to achieve best-in-class results. The company is highly regarded for its financial services technology and services innovation, including award-winning solutions for mobile and online banking, payments, risk management, data analytics and core account processing. Fiserv is helping its clients push the boundaries of what's possible in financial services, delivering deep expertise and innovative solutions to help financial institutions, businesses and consumers move and manage money faster and with greater ease than ever before.

YRC Worldwide Inc., a Fortune 500 company headquartered in Overland Park, Kan., is a leading provider of transportation and global logistics services. It is the holding company for a portfolio of successful brands including YRC Freight, YRC Reimer, Reddaway, Holland and New Penn, and provides China-based services through its Jiayu and JHJ joint ventures. YRC Worldwide has the largest, most comprehensive less-than-truckload (LTL) network in North America with local, regional, national and international capabilities. Through its team of experienced service professionals, YRC Worldwide offers industry-leading expertise in heavyweight shipments and flexible supply chain solutions, ensuring customers can ship industrial, commercial and retail goods with confidence. Visit www.yrcw.com for more information.

Conagra Brands (NYSE: CAG), headquartered in Chicago, combines a rich heritage of making great food with a sharpened focus and entrepreneurial spirit. We’re transforming the way we operate to fulfill what consumers and customers want, in a smart, simple way. We’re modernizing our iconic food brands, leveraging fresh opportunities and adapting to a changing landscape – all with a culture that’s ready to capture growth and drive shareholder value.

Oshkosh Corporation (Oshkosh) is a designer, manufacturer and marketer of a broad range of specialty vehicles and vehicle bodies. The Company partners with customers to deliver superior solutions that safely and efficiently move people and materials at work, around the globe, and around the clock. It maintains four reportable segments for financial reporting purposes: access equipment, defense, fire and emergency and commercial, which consist of 40%, 40%, 10% and 10%, respectively net sales during the fiscal year ended September 30, 2013 (fiscal 2013). The Company is a manufacturer of telehandlers under the JLG, SkyTrak and Lull brand names. JLG, a manufacturer of aerial work platforms and telehandlers used in a range of construction, agricultural, industrial, institutional and general maintenance applications to position workers and materials at elevated heights, forms the base of the Company's access equipment segment.

In the 1990's, the building materials industry changed significantly. Homebuilders grew by acquisition, creating large national competitors. Building materials manufacturers also consolidated. It was inevitable that the building material supply industry, the companies between the consolidating manufacturers and consolidating homebuilders, must consolidate as well. Builders FirstSource was born from this industry evolution. In March 1998, the Company's management team, with the backing of JLL Partners, a private investment firm with significant committed capital, made its first acquisition. Builders FirstSource continued to grow through a combination of strategic acquisitions and internal expansion. Between 1998 and the beginning of 2015, we acquired and integrated thirty-three companies. In June 2005, Builders FirstSource completed an initial public offering of its common stock, after which JLL Partners maintained a significant investment in the company. On July 31, 2015, Builders FirstSource acquired its largest competitor, ProBuild Holdings LLC, creating a more diversified company with enhanced scale and improved geographic footprint. The combined company, on a pro forma basis, generated over $6 billion in annual revenue in 2015 and currently operates approximately 400 locations in 40 states, with a market presence in 74 of the top 100 Metropolitan Statistical Areas in the United States. Builders FirstSource strives to be the preferred supplier of structural building materials and services to homebuilders and remodelers across the nation by giving them both personalized attention at the local level and a wide range of resources only offered by a large company. Builders FirstSource's goal is to provide outstanding products and services to every customer, regardless of size.

FirstEnergy's 10 regulated distribution companies, that serve customers in Ohio, Pennsylvania, New Jersey, West Virginia, Maryland and New York, form one of the nation's largest investor-owned electric systems. Its transmission operations include approximately 24,000 miles of lines and two regional transmission operation centers. Founded in 1970 and headquartered in Akron, OH, FirstEnergy continues to strongly contribute to cleaner energy resources, smarter technology and a more sustainable planet.

Nexstar Media Group, Inc. is one of the world's leading diversified media companies. Nexstar owns, operates, programs or provides sales and other services to 174 television stations and their related low power and digital multicast signal. The company also brings services and value to consumers and advertisers through its television, digital and mobile media platforms. Its digital solutions and services are delivered to local and national media companies, advertisers, agencies and brands.

Johns Hopkins Medicine (JHM), headquartered in Baltimore, Maryland, is an $8 billion integrated global health enterprise and one of the leading health care systems in the United States. Johns Hopkins Medicine unites physicians and scientists of the Johns Hopkins University School of Medicine with the organizations, health professionals and facilities of The Johns Hopkins Hospital and Health System.

GPS Hospitality is a privately held company that is primarily a franchisee for quick service restaurants, including Popeyes Louisiana Kitchen, Burger King and Pizza Hut.

5 million individuals and groups in Maryland and the Washington metropolitan area.

MassMutual provides financial products such as life insurance, disability income insurance, long term care insurance, retirement/401 plan services, and annuities.

Aspen Dental Management, Inc. is a dental support organization - a dental practice management corporation that provides business support and administrative services in the US. Its headquarters is in DeWitt, New York.

Erie Insurance offers a range of services to meet family insurance needs, including a variety of home and tenant (renters) insurance policies and boat insurance. ERIE also offers a variety of business insurance products to meet the needs of both small and large businesses. Erie Family Life offers a complete line of products to meet individual and business life insurance needs. When H.O. Hirt and O.G. Crawford decided to start an insurance exchange in 1925, they wanted to base it on “simple common sense, mixed with just plain decency.” They turned to the Golden Rule as a guiding principle: “Do unto others as you would have them do unto you.” The two entrepreneurs spent months drumming up support for the Erie Insurance Exchange, with nothing but their axiom and a business plan scribbled on a 10-cent tablet. On April 20, 1925, their fundraising concluded and 90 years of service and innovation began.

JLG Industries, Inc., an Oshkosh Corporation company, is an American designer, manufacturer and marketer of access equipment.

Boot Barn humble beginnings of a family run storefront to over 200 stores in 33 states.

CBIZ, Inc., through its subsidiaries, provides professional business services primarily to small and medium-sized businesses, individuals, governmental entities, and not-for-profit enterprises in the United States and Canada. The company offers financial services, which include accounting, tax, financial advisory, litigation support, valuation, internal audit, fraud detection, and real estate advisory services; and employee services consisting of group health, property and casualty, COBRA/Flex, retirement planning, wealth management, life insurance, human capital management, payroll services, actuarial services, and recruiting. It also provides medical management services comprising coding and billing, accounts receivable management, and full practice management services for hospital-based physicians practicing radiology, emergency medicine, anesthesiology, and pathology; and national practices services, including managed networking and hardware services, technology security solutions, technology consulting, project management, software solutions, healthcare consulting, and mergers and acquisitions. The company was founded in 1987 and is headquartered in Cleveland, Ohio. The company is a member firm of Kreston International Ltd.