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Top 20 Membership Organizations Companies in US.

PricewaterhouseCoopers LLP

New York City,  New York,  United States 10017 (Map)

208,000 Employees

PricewaterhouseCoopers ( provides industry-focused assurance, tax and advisory services to build public trust and enhance value for its clients and their stakeholders. More than 140,000 people in 149 countries across our network share their thinking, experience and solutions t... more

Kaiser Permanente

San Diego,  California,  United States 92111 (Map)

175,668 Employees

Kaiser Permanente is committed to helping shape the future of health care. We are recognized as one of America's leading health care providers and not-for-profit health plans. Founded in 1945, our mission is to provide high-quality, affordable health care services and to improve the healt... more

Sheet Metal Workers

Mather,  California,  United States 95655 (Map)

135,850 Employees

The Sheet Metal Workers' National Pension Fund ("NPF" or "Fund") is a defined benefit pension fund. As a defined benefit plan, all Fund assets are held in one trust for the benefit of all participants. There are no individual accounts. Except for very small amounts, benefits are paid in t... more

Royal Caribbean International

Miami,  Florida,  United States 33132 (Map)

66,000 Employees

Royal Caribbean Cruises Ltd. is a global cruise vacation company that operates Royal Caribbean International, Celebrity Cruises, Pullmantur, Azamara Cruises and CDF Croisieres de France. The company has a combined total of 37 ships in service and seven under construction. It also offers u... more

Catholic Health Initiatives Inc

Englewood,  Colorado,  United States 80112 (Map)

65,296 Employees

Catholic Health Initiatives, a nonprofit, faith-based health system formed in 1996 through the consolidation of four Catholic health systems, expresses its mission each day by creating and nurturing healthy communities in the hundreds of sites across the nation where it provides care. The... more

Cleveland Clinic Foundation

Cleveland,  Ohio,  United States 44195 (Map)

48,000 Employees

Cleveland Clinic is a nonprofit multispecialty academic medical center that integrates clinical and hospital care with research and education. Located in Cleveland, Ohio, it was founded in 1921 by four renowned physicians with a vision of providing outstanding patient care based upon the... more

Line Construction Benefit Fund

Lombard,  Illinois,  United States 60148 (Map)

35,150 Employees

Lineco is distributing new and improved Summary Plan Descriptions (SPD's). You should receive these in the mail this summer! ... more

Japan Airlines Co. Ltd

Los Angeles,  California,  United States 90045 (Map)

31,986 Employees

JAL, Japan Airlines Co., Ltd. (, through its six subsidiaries, flies the company's current 15 E170 jets on domestic routes operating from four hub airports. Recent restructuring, implemented due to rising fuel costs, is strengthening and refocusing the Group in Japan and thro... more

North Atlantic Treaty Organization

Norfolk,  Virginia,  United States 23551 (Map)

29,966 Employees

Cooperation with NATO is one of the key components of Armenia"s multi-layer security system. Armenia pursues policy of vigorous relations with the North Atlantic Alliance and will continue its full involvement in Partnership and embark on implementing joint programs. In recent years Arm... more

Amicale Citroen Internationale

The Amicale Citroën Internationale (ACI) was formally founded in February 2004 in Paris, as the international lobby for all Citroën lovers towards the manufacturer. Informally, this organisation has been existing since the late 80s. Established as a self-organized, completely independen... more

International Aikido Federation

Boulder,  Colorado,  United States 80301 (Map)

25,962 Employees

1. 1 The International Aikido Federation is a non-political, non-profit cultural association of national Aikido organizations. 1. 2 The International Aikido Federation does not discriminate between individuals, nationalities, races or religious beliefs. 1. 3 The International Aikido F... more

The Iowa Bankers Association

Johnston,  Iowa,  United States 50131 (Map)

23,631 Employees

Iowa Bankers Mortgage Corporation (IBMC) is committed to ALL of our customers, whether financial institutions for whom we fund loans, or homeowners for whom we service loans. To reflect this commitment we recently enhanced our Mission Statement to the following: Facilitate the Mortgage ... more

North Carolina Medical Society

Raleigh,  North Carolina,  United States 27601 (Map)

23,128 Employees

The North Carolina Medical Society is the largest and oldest professional member organization in North Carolina, representing approximately 12,500 physicians and physician assistants who practice in the state. Founded in 1849, the Society seeks to promote access to quality health care fo... more

Henry Ford Hospital

Sterling Heights,  Michigan,  United States 48313 (Map)

23,000 Employees

Henry Ford Hospital, the flagship facility for Henry Ford Health System, is an 877-bed tertiary care hospital, education and research complex. The hospital is staffed by the Henry Ford Medical Group, one of the nation's largest and oldest group practices with 1,200 physicians in more tha... more


Chicago,  Illinois,  United States 60611 (Map)

22,157 Employees

SIGGRAPH University provides a sampling of the content from the annual SIGGRAPH conference. The videos are available to the public at no cost through the ACM SIGGRAPH YouTube channel. All who watch the videos are encouraged to continue the educational experience by attending SIGGRAPH 2014... more

Expedia , Inc.

Bellevue,  Washington,  United States 98004 (Map)

20,075 Employees

Expedia, Inc. is the world's leading online travel company, empowering business and leisure travelers with the tools and information they need to easily research, plan, book and experience travel. Expedia, Inc. also provides wholesale travel to offline retail travel agents and in-destina... more Incorporated

Norwalk,  Connecticut,  United States 06854 (Map)

18,500 Employees, part of The Priceline Group [NASDAQ: PCLN], gives leisure travelers multiple ways to save on their hotel rooms, airline tickets, rental cars, vacation packages and cruises. In addition to getting compelling published prices, travelers can take advantage of's ... more

ClubCorp Inc

San Antonio,  Texas,  United States 78234 (Map)

18,300 Employees

Dallas-based ClubCorp is The World Leader in Private Clubs®. Since its founding in 1957, ClubCorp has operated with the central purpose of Building Relationships and Enriching the Lives® of its members. ClubCorp owns or operates a network of more than 150 golf and country clubs, business... more

William Beaumont Hospital

Royal Oak,  Michigan,  United States 48073 (Map)

18,000 Employees

Beaumont Health is Michigan's largest health care system, based on inpatient admissions and net patient revenue. A not-for-profit organization, it was formed in 2014 by Beaumont Health System, Botsford Health Care and Oakwood Healthcare to provide patients with the benefit of greater acc... more

TUV Rheinland of North America , Inc.

Aliquippa,  Pennsylvania,  United States 15001 (Map)

17,950 Employees

TUV Rheinland ( is a leading group for the provision of technical services worldwide. It has over 490 locations in 61 countries on all five continents. With a workforce of 13,850, it achieves a turnover of approx. Euro1.2 billion a year. The guiding principle in th... more

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