biggest companies in Harrisburg, PA

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.

Deloitte is the brand under which tens of thousands of dedicated professionals in independent firms throughout the world collaborate to provide audit, consulting, financial advisory, risk management, tax and related services to select clients. These firms are members of Deloitte Touche Tohmatsu Limited, a UK private company limited by guarantee (“DTTL”). Each DTTL member firm provides services in particular geographic areas and is subject to the laws and professional regulations of the particular country or countries in which it operates. Each DTTL member firm is structured in accordance with national laws, regulations, customary practice, and other factors, and may secure the provision of professional services in its territory through subsidiaries, affiliates, and other related entities. Not every DTTL member firm provides all services, and certain services may not be available to attest clients under the rules and regulations of public accounting. DTTL and each DTTL member firm are legally separate and independent entities, which cannot obligate each other. DTTL and each DTTL member firm are liable only for their own acts and omissions, and not those of each other. DTTL (also referred to as “Deloitte Global”) does not provide services to clients. The DTTL member firm in the United States is Deloitte LLP. Deloitte's offices in New York have over 5,000 professionals in Audit, Advisory, Financial Advisory Services, Tax, and Consulting. Deloitte's U.S. headquarters at 30 Rockefeller Plaza in Manhattan was awarded the U.S. Green Building Council's Leadership in Energy and Environmental Design (LEED) Certification at the Gold level for commercial interiors in 2013. Deloitte designed its headquarters as a next generation workplace, bringing to life the organization's commitment to cutting-edge technology, open and flexible work settings and conference and training facilities.

PricewaterhouseCoopers is a multinational professional services network with headquarters in London, United Kingdom. PwC ranks as the second largest professional services firm in the world and is one of the Big Four auditors, along with Deloitte, EY and KPMG.

KPMG is one of the world’s leading professional services firms, providing innovative business solutions and audit, tax, and advisory services to many of the world’s largest and most prestigious organizations. KPMG is widely recognized for being a great place to work and build a career, and is consistently named one of the nation’s “100 Best Companies to Work For” by Fortune magazine. Our people share a sense of purpose in the work we do, and a strong commitment to community service, diversity and inclusion, and eradicating childhood illiteracy. A purpose-driven culture and a strong foundation for career success is what you will find at KPMG LLP. We start by enabling you to take personal responsibility for your own career development. Then we support you with the people, processes and experiences to help turn your goals and aspirations into a powerful plan of action. Join the firm that has won numerous prestigious workplace awards and is as invested in your career as you are.

CVS Health Corporation is an American healthcare company that owns CVS Pharmacy, a retail pharmacy chain; CVS Caremark, a pharmacy benefits manager; and Aetna, a health insurance provider, among many other brands.

Terremark Worldwide, Inc., a subsidiary of Verizon Communications Inc., provides managed information technology (IT) solutions such as colocation, managed hosting, managed network, disaster recovery, security, and cloud computing services. The company has data centers in the United States, Europe and Latin America. Its clients come from various sectors including: enterprise, government agencies, systems integrators, network service providers, Internet content and portal companies. Terremark Worldwide was founded in 1982 and is based in Miami, Florida.

Opower Inc provides cloud-based software to the utility industry in the US. Energy providers use their platforms to deliver proactive, digital communications for them to manage energy demand and lower service cost. Their software is distributed to 100 utilities worldwide. The company was founded by friends Dan Yates and Alex Laskey in year 2007, and now has a record of 500 employees in its five offices.

Thermo Fisher Scientific Inc. (NYSE: TMO) is the world leader in serving science. Their mission is to enable their customers to make the world healthier, cleaner and safer. With revenues of more than $10 billion, they have approximately 35,000 employees and serve customers within pharmaceutical and biotech companies, hospitals and clinical diagnostic labs, universities, research institutions and government agencies, as well as in environmental and process control industries. They create value for their key stakeholders through two premier brands, Thermo Scientific and Fisher Scientific, which offer a unique combination of continuous technology development and the most convenient purchasing options. Their products and services help accelerate the pace of scientific discovery, and solve analytical challenges ranging from complex research to routine testing to field applications.

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.

CBRE Group, Inc. is a holding company that conducts all of its operations through its indirect subsidiaries. The Company is a commercial real estate services firm. As of December 31, 2011, it operated approximately 300 offices worldwide, providing commercial real estate services under the CBRE brand name, investment management services under the CBRE Global Investors brand name and development services under the Trammell Crow brand name. CBRE Services, Inc., its direct wholly owned subsidiary, is also a holding company and is the primary obligor or issuer with respect to most of its long-term indebtedness. The Company operates in five segments: Americas, Europe, Middle East and Africa (EMEA), Asia Pacific, Global Investment Management and Development Services. In March 2014, the Company acquired VALTEQ Gesellschaft mbH and its subsidiaries.

3M Company operates as a diversified technology company worldwide. The company s Industrial segment offers tapes; coated, non-woven, and bonded abrasives; adhesives; advanced ceramics; sealants; specialty materials; separation and purification products; closure systems for personal hygiene products; acoustic systems products; automotive components; and abrasion-resistant films, and paint finishing and detailing products. Its Safety and Graphics Business segment provides personal protection products, traffic safety and security products, commercial graphics systems, commercial cleaning and protection products, floor matting, roofing granules for asphalt shingles, and fall protection products. The company s Health Care segment offers medical and surgical supplies, skin health and infection prevention products, inhalation and transdermal drug delivery systems, dental and orthodontic products, health information systems, and food safety products. Its Electronics and Energy segment provides optical films; packaging and interconnection devices; insulating and splicing solutions; touch screens and touch monitors; renewable energy component solutions; and infrastructure protection products. The company s Consumer segment offers sponges, scouring pads, high-performance cloths, repositionable notes, indexing systems, home improvement and care products, protective materials, and consumer and office tapes and adhesives. The company serves automotive, electronics and energy, appliance, paper and printing, packaging, food and beverage, construction, medical clinics and hospitals, pharmaceuticals, dental and orthodontic practitioners, health information systems, food manufacturing and testing, consumer and office retail, office business to business, home improvement, drug and pharmacy retail, and other markets directly, as well as through wholesalers, retailers, jobbers, distributors, and dealers. The company was founded in 1902 and is headquartered in St. Paul, Minnesota.

8 million-member health insurance division, as well as commercial and international ventures.

Veolia Environmental Services, formerly Onyx Environnement, is a division of Veolia Environnement. It employs nearly 78,000 staff, has operations in 35 countries around the world, and generated revenues of nearly €9.02 billion in 2009.

Merck is a biopharmaceutical company that offers medicines and vaccines for various diseases. The company is driven by a mission to discover, develop, and provide innovative products and services that save and improve lives around the world. Merck delivers vaccines, medications, and consumer and animal health products that can help millions around the world. Merck was founded in 1891 and is headquartered in Kenilworth, NJ.

Facebook is an online social networking service that allows its users to connect with friends and family as well as make new connections. It provides its users with the ability to create a profile, update information, add images, send friend requests, and accept requests from other users. Its features include status update, photo tagging and sharing, and more. Facebook's profile structure includes a timeline, information related to the user, images of the user, images added by friends of the user, notes, pages, groups, and more. It enables its users to create pages related to entertainment, sports, business, finance, preferences, hobbies, culture, religion, causes, organizations, and a number of other categories. It also enables its users to join or create groups related to a vast number of categories. With millions of more users, Friendster attempted to acquire the company for $10 million in mid-2004. Facebook turned down the offer and subsequently received $12.7 million in funding from Accel Partners at a valuation of around $100 million. Facebook continued to grow opening up to high school students in September 2005 and adding a photo sharing feature the next month. The next spring, Facebook received $25 million in funding from Greylock Partners and Meritech Capital as well as previous investors Accel Partners and Peter Thiel . The pre-money valuation for this deal was about $525 million. Facebook subsequently opened up to work networks eventually amassing over 20,000 work networks. Finally in September 2006, Facebook was opened to anyone with an email address. Facebook continued to receive funding most notably in January 2011 receiving $1.5 billion and valuing the company at $50 billion. A year later in February 2012, Facebook announced that it was filing for its long-anticipated initial public offering. The company went public on May 18, 2012 opening in NASDAQ with shares trading at $42.05. Facebook announced positive numbers in February 2012 upon filing for its IPO. As of July 2013 over 1.15 billion users have logged into Facebook every month and 669 million users daily. Mobile users now make up half of Facebook's user base with 819 million monthly actives. Facebook is one of the most trafficked sites in the United States. Additionally, Facebook is the top photo sharing site with 250 million photos uploaded per day. The company has strategic partnership with AXA Group to develop marketing and commercial collaboration in the digital, social, and mobile sphere. Facebook is currently the owner of many applications and services such as Pagemodo Pagebuilder, RSS Graffiti , Huddle, and more. It is the world's largest social network with over 1.32 billion monthly active users. Facebook was founded by Mark Zuckerberg on February 4, 2004 in Menlo Park, California.

Building customer relationships requires time, effort and sincerity. For Sysco, it began with a promise to assist foodservice operators in providing consumers with solutions for meals consumed away from home. Since the initial public offering in 1970, when sales were $115 million, Sysco has grown to $44 billion in sales for fiscal year 2013.

Founded in 2004, Anthem Inc. has been the largest for-profit managed health care company in the Blue Cross and Blue Shield Association. Headquartered in Indianapolis, Indiana, Anthem, Inc. delivers a number of leading health benefit solutions through a broad portfolio of integrated health care plans and related services. This American health insurance company also offers specialty products such as life and disability insurance benefits, dental, vision, behavioral health benefit services, and more.

The Trane Company Inc. manufactures heating, ventilation, and air conditioning (HVAC) systems and services. It offers chillers, airside and terminal devices, and OEM compressors. The company provides HVAC systems, such as chilled water to air applied systems, and refrigerant to air direct expansion systems; controls including HVAC controls, building control systems, sensors, and chiller controls; parts and supplies for compressors, controls, HVAC equipment, motors, and contractor supplies and equipment; and design and analysis tools. It also provides Tracer XT, a platform that provides data center customers with ways to reduce energy consumption, improve building operations, and optimize system management. In addition, the company offers products for the residential home, such as air conditioners, heat pumps, air cleaners, thermostats, furnaces and coils, air handlers, humidifiers, and packaged units. It serves industrial, lodging and entertainment, life sciences, offices, retail, education, government, and healthcare industries. The company was founded in 1885 and is based in Reno, Nevada. The Trane Company Inc. operates as a subsidiary of Ingersoll-Rand Plc.

The Bank of New York Mellon Corporation, commonly known as BNY Mellon, is an American investment banking services holding company headquartered in New York City.