biggest companies in Tulsa, OK

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.

Target Corporation is the second-largest department store retailer in the United States. Headquartered in Minneapolis, Minnesota, this company serves guests at over 1,800 stores and at Target. Com. Since 1946, this company has given five percent of its profit to communities which today equals millions of dollars a week. Target Corporation has around 10,000 employees and a revenue of up to $1 billion.

Securitas AB is a security services, monitoring, consulting and investigation group, based in Stockholm, Sweden. The group has over 300,000 employees in 53 countries worldwide. Securitas AB is listed at Nasdaq OMX Stockholm, Large Cap segment.

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.

EY is a global leader in assurance, tax, transaction and advisory services. The insights and quality services EY delivers helps build trust and confidence in the capital markets and in economies the world over. EY develops outstanding leaders who team to deliver on their promises to all of their stakeholders. In so doing, EY play a critical role in building a better working world for their people, for their clients and for their communities. EY refers to the global organization and may refer to one or more of the member firms of Ernst & Young Global Limited, each of which is a separate legal entity. Ernst & Young Global Limited, a UK company limited by guarantee, does not provide services to clients. EY's 190,000 people are the foundation of EY's success. EY assembles the right multi-disciplinary team for your business, drawing on their global network of professionals. Working with you in a collaborative style, EY gains a clear understanding of your organisation and strive to identify issues before they become problems. You get the people you need, wherever in the world you need them, backed up by leading practices, methodologies and tools.

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.

Microsoft is an American multinational corporation that develops, manufactures, licenses, supports, and sells a range of software products and services. Microsoft's devices and consumer (D&C) licensing segment licenses Windows operating system and related software; Microsoft Office for consumers; and Windows Phone operating system. The company's computing and gaming hardware segment provides Xbox gaming and entertainment consoles and accessories, second-party and third-party video games, and Xbox Live subscriptions; surface devices and accessories; and Microsoft PC accessories. Its phone hardware segment offers Lumia smartphones and other non-Lumia phones. Its D&C other segment provides Windows Store, Xbox Live transactions, and Windows phone store; search advertising; display advertising; Office 365 Home and Office 365 Personal; first-party video games; and other consumer products and services as well as operating retail stores. Microsoft's commercial licensing segments licenses server products, including Windows Server, Microsoft SQL Server, Visual Studio, System Center, and related Client Access Licenses (CALs); Windows Embedded; Windows operating system; Microsoft Office for business, including Office, Exchange, SharePoint, Lync, and related CALs; Microsoft Dynamics business solutions; and Skype. Its commercial other segment offers enterprise services, including premier support services and Microsoft consulting services; commercial cloud comprising Office 365 Commercial, other Microsoft Office online offerings, Dynamics CRM Online, and Microsoft Azure; and other commercial products and online services. The company markets and distributes its products through original equipment manufacturers, distributors, and resellers, as well as online. Microsoft Corporation was founded by Bill Gates and Paul Allen in 1974. It is based in Redmond, Washington.

Deutsche Lufthansa AG is an airline with operations all over the world. It operates its core business of passenger transport through Lufthansa Passage Airlines (incl. Lufthansa Regional), Austrian Airlines, SWISS, and Germanwings and through affiliates Brussels Airlines and SunExpress. Its other business fields are logistics, engineering, catering and IT services. Deutsche Lufthansa AG has the management and supervisory structures typical for companies in Germany. The Executive Board is responsible for managing the Company and defining its strategic direction. In doing so, the aim is to increase Company value sustainably. The Supervisory Board appoints, advises and supervises the Executive Board. Deutsche Lufthansa AG is the parent company and the largest single operating company in the Lufthansa Group. The individual business segments are run as separate Group companies, with the exception of the Lufthansa Passenger Airlines. They have their own profit and operating responsibility and are monitored by their respective supervisory boards, in which members of Deutsche Lufthansa AG's Executive Board are also represented.

Founded in 1930, American Airlines is one of the largest airlines in the world. Throughout the years, American has created more than 900,000 jobs worldwide and supported close to 1,400 nonprofit organizations. Together with regional partner American Eagle, they offer an average of nearly 6,700 flights daily to 350 destinations in 50 countries. They are also a founding member of the oneworld(r) alliance, whose members and members-elect offer nearly 14,250 flights daily to 1,000 destinations in 150 countries.

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.

DXC Technology (DXC: NYSE) is the world's leading independent, end-to-end IT services company, serving nearly 6,000 private and public sector clients from a diverse array of industries across 70 countries. The company's technology independence, global talent and extensive partner network help clients harness the power of innovation to thrive on change and guide their digital transformation journeys. The company was formed on April 1, 2017, by the merger of CSC and the Enterprise Services business of Hewlett Packard Enterprise. DXC Technology has successfully guided the world's largest enterprises and government agencies through successful change cycles. With some 137,000 employees worldwide, the company's deep experience gives it a clear and confident vision to help clients navigate the future. DXC Technology is a Fortune 500 company and represented in the S&P 500 Index. The company works to create greater value for clients, partners and shareholders, and to present growth opportunities for its people. DXC Technology is ranked among the world's best corporate citizens. DXC Technology's extensive partner network helps us drive collaboration and leverage technology independence. The company has established more than 250 industry-leading global Partner Network relationships, including 15 strategic partners: Amazon Web Services, AT&T, Dell EMC, HCL, Hitachi Vantara, HP, HPE, IBM, Lenovo, Micro Focus, Microsoft, Oracle, PwC, SAP and ServiceNow.

Honeywell First Responder Products is the leading manufacturer of head-to-toe personal protective equipment such as structural turnout gear, proximity gear, EMS gear, helmets, boots, hoods, gloves, EN products, etc. Headquarted in Dayton, Ohio, Honeywell First Responder has representatives throughout the US and internationally. Its mission is to provide high quality equipment and solutions that help firefighters work efficiently and safely.

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.

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.

Koch Industries, Inc. is an American multinational corporation based in Wichita, Kansas. Its subsidiaries are involved in the manufacturing, refining, and distribution of petroleum, chemicals, energy, fiber, intermediates and polymers, minerals, fertilizers, pulp and paper, chemical technology equipment, ranching, finance, commodities trading, and investing. Since its inception, Koch Industries has been committed to improve people's lives by creating better products using fewer resources.

Cisco Systems, Inc., established in 1984, designs, manufactures, and sells Internet Protocol based networking and other products related to the communications and information technology industry worldwide. The company's technology powers entertainment, retail, healthcare, education, and other markets. Cisco System's core development areas are routing and switching, as well as in advanced technologies such as home networking, IP telephony, optical networking, security, storage area networking, and wireless technology. Today, the company has more than 71,000 employees worldwide. Its headquarters are located in San Jose, CA.

Whirlpool manufactures and markets major home appliances. The company's principal products include laundry appliances, refrigeration and room air conditioning equipment, cooking appliances, dishwashers, mixers, and other small household appliances. It also produces hermetic compressors for refrigeration systems. In North America, the company markets and distributes major home appliances and portable appliances under various brand names. In the United States, it markets and distributes products primarily under the Whirlpool, Maytag, KitchenAid, Jenn-Air, Amana, Roper, Admiral, Affresh, and Gladiator brand names primarily to retailers, distributors, and builders. In Canada, the company markets and distributes major home appliances primarily under the Inglis, Admiral, Whirlpool, Maytag, Jenn-Air, Amana, Roper, Estate, and KitchenAid brand names. In Mexico, the company markets and distributes major home appliances primarily under the Whirlpool, Maytag, Acros, KitchenAid, and Supermatic brand names. Whirpool was founded in 1911 and is headquartered in Benton Harbor, Michigan.

Brookdale Senior Living Solutions owns and operates retirement homes across the United States.

Stanley Black & Decker is a purpose-driven, $14 billion revenue industrial organization. Stanley Black & Decker has 61,000 employees in more than 60 countries and operates the world’s largest tools and storage business, the world’s second-largest commercial electronic security services company, a leading engineered fastening business as well as Oil & Gas and Infrastructure businesses. The company’s iconic brands include Black & Decker, Bostitch, CRAFTSMAN, DEWALT, FACOM, Irwin, Lenox, Porter Cable and Stanley. Stanley Black & Decker is a company for the makers and innovators, the craftsmen and the caregivers, and those doing the hard work to make the world a better place.