The use of multi-winner RCV (also referred to as the "single transferable vote" and the "Hare system") is popular among organizations and corporations. Here are some examples of groups that use choice voting and how they use it.
Californians for Electoral Reform (Director) Directors are elected annually using choice voting.
CUNY Faculty Senate (Senators) Junior and Senior Senators are elected using choice voting.
Eclipse (Add-in Provider Members, Committer Members) Each Add-In Member or Committer Member, as applicable, is entitled to cast numbered preference votes for as many candidates as there are open seats on the Board allocated to Add-In Provider Members and Committer Members, as applicable.
ERotaryLondon (President, a President-elect, a Secretary and a Treasurer) The Secretary circulates ballot papers at the beginning of every year which will be counted choice voting.
Green Idea A provision within the by-laws of this organization allows the use of choice voting and Condorcet methods upon a two-thirds majority vote.
Green Party of the United States (SC co-chairs) Co-chairs are elected using choice voting by means of the “Droop” method. This requires that the total number of votes are divided by the number of seats plus one. A candidate must pass this threshold to be elected. A number of other ancillary Green Party organizations incorporate choice voting.
KPFA (Staff and Listener-Sponsor Delegates, Listener-Sponsor Directors, Affiliate Representative Directors) Any position that provides more than one seat is elected using choice voting.
League of Professional System Administrators (Director) Elections for Director are conducted using the "Meek" form of choice voting. The Meek method requires computer counting for a complicated formula that can be effective in ensuring that the elected candidates total votes are as equal as possible to the quotas.
McMaster University Faculty of Business(President, Provost, Dean of the Faculty (Chair), Associate Dean, Dean of Graduate Studies or delegate, Director of Undergraduate Programs , Director of MBA Program, Director of Ph.D. Program)
The Faculty Council (President, Provost, Vice-President (Research and International Affairs), Dean of the Faculty (Chair), Associate Dean of the Faculty, Dean of Graduate Studies or delegate, Director of the Engineering and Management Program, Chair of the Department of Economics or delegate, Chair of the Department of Mathematics & Statistics or delegate)
All elections except for the full-time, non-teaching staff members of the Faculty employ choice voting.
Minnesota State Bar Association (officers, delegates, representatives to other bodies and commissions and representatives from the Assembly to the Council) The Droop method of creating a threshold for choice voting elections is used.
National Youth Rights Association (Board of Directors) Candidates for the board of directors will be selected by choice voting using the ERS97 method published by the Electoral Reform Society.
New Mexico State University (Faculty Committees) Choice voting is used to elect all committee members.
Open Grid Forum (Director) Elections use choice voting, with a recommendation for using a “suitable” algorithm such as pSTV.
Open Health Tools (Committer Stewards, Project Lead Stewards) The Committers and Project Leads of Open Health Tools hold annual at-large elections for their respective stewards using choice voting.
Oxford University Contract Bridge Association (Chairman, Secretary, Treasurer, Captain, Tournament Director, Cuppers Secretary, Publicity and Development Officer, and Webmaster.) Voting is meant to be secret and with the use of choice voting.
Pacifica Radio (Delegates) Voters are given the option of voting for one candidate or ranking the candidates in order of preference, with the intention of achieving proportional representation.
Penn State University Faculty Senate Elections of senators are conducted using choice voting.
University of Texas at Austin Faculty Council (General Faculty Representatives) Elections of faculty representatives are conducted using choice voting.
West Virginia Association of Geospatial Professionals (All elections)
Many British organizations use multi-winner RCV (also called the single transferable vote or STV in the United Kingdom) for their elections. Here is a partial list, as of June 2008 -- note that there is a slight chance that some of these organizations either use a different ranked ballot system or have changed their election method recently.
Abbey National Group Union
Amnesty International ASLEF Association for Physical Education
Association of Anaesthetists of Great Britain and Ireland
Association of British Clinical Diabetologists
Association of Paediatric Anaesthetists
Barnsley Hospital NHS Foundation Trust
Basildon & Thurrock University Hospitals
BECTU BFAWU Birmingham & Solihull Mental Health NHS Trust Blackpool, Fylde & Wyre Hospitals NHS Trust
BMA - GPC
BMA Consultants Committee
BMA Junior Doctors Committee BMA Medical Students Committee
BMA Science & Education
BMA Scotland Bolton, Salford & Trafford Mental Health Trust
Bradford Teaching Hospitals NHS Foundation Trust
BRIT Awards Ltd
British Airways Pensions
British Computer Society
British Humanist Association British Medical Journal
British Transplant Society
Cemex Centrica plc Chartered Institute of Linguists
Chartered Society of Physiotherapy
Chelsea & Westminster NHS Trust
CIMA Clatterbridge Centre for Oncology NHS Foundation Trust
Countess of Chester Hospital NHS Foundation Trust
Crewe and Nantwich Borough Council
Crown Estate CSC
Derby Hospitals NHS Foundation Trust East London & The City Mental Health NHS Trust
Educational Institute of Scotland
Electoral Reform Society
Ernst & Young Eversheds
Family Law Bar Association
First TransPennine Express
Gallions Housing Association General Council of the Bar
General Teaching Council for England General Teaching Council Wales
Gloucestershire Hospitals NHS Foundation Trust
Goitre Tower Anthracite Ltd
Harrogate and District NHS Foundation Trust
HAVCO (Haringey Association of Voluntary and Community Organisations)
Higher Education Academy
Homerton University Hospital NHS Trust
HSBC IBM United Kingdom Pensions Trust Limited
Institute of Mechanical Engineers (IMechE)
Institution of Civil Engineers (ICE) IOSH Kings Fund
International Continence Society
Lancashire Care NHS Foundation Trust Lancashire Care NHS Trust
Lancashire Teaching Hospital Foundation Trust Law Society
Liverpool Women's NHS Foundation Trust
London Civic Forum
London Metropolitan University
Londonwide Local Medical Committee
Mid Cheshire Hospitals NHS Trust
Milk Link Limited
MS Society Scotland
National Autistic Society
National Grid National Housing Federation
National Union of Teachers
NCVO - National Council for Voluntary Organisations
New Cross Gate NDC
NISA Norfolk and Norwich University Hospital NHS Trust
North Essex Partnership NHS Foundation Trust (prospective)
North Lincolnshire and Goole Hospitals NHS Foundation Trust
Northamptonshire Healthcare NHS Trust Northern Bank Pension Trust Limited
Northern Ireland Water
NORTHUMBRIA HEALTHCARE NHS FOUNDATION TRUST
NUJ - NEC
OASIS (Organization for the Advancement of Structured Information Standards)
Octavia Housing & Care
Oxleas NHS Foundation Trust
Papworth Hospital NHS Foundation Trust
Partnership of East London Co-operatives (PELC) Limited
Pensions Management Institute Pensions Trust
Pensions Trust, The
Peterborough and Stamford NHS Foundation Trust
Portsmouth Hospitals NHS Trust
Princess Royal Trust for Carers, The PwC
PwC Hong Kong Rail Safety & Standards Board
Reading University Students' Union
Royal Academy of Engineering Royal Bolton Hospitals NHS Trust
Royal Bournemouth and Christchurch Hospitals NHS Foundation Trust
Royal British Legion Royal College of General Practitioners
Royal College of Midwives
Royal College of Nursing
Royal College of Paediatrics and Child Health Royal College of Physicians
Royal College of Psychiatrists
Royal College of Surgeons
Royal Free Hampstead NHS Trust
Royal Town Planning Institute Sanofi Aventis
Scottish Federation of Housing Associations
Scottish Tobacco Control Alliance
Senior Council for Devon
SFLA (Solicitors Family Law Association)
Sheffield Teaching Hospitals Shell Pensions Trust Ltd
Society for Cardiothoracic Surgeons of Great Britain & Ireland
Society of Operations Engineers
South Essex Partnership NHS Trust
South Staffordshire Healthcare FT
Stockport NHS Foundation Trust
T & G Taunton and Somerset NHS Trust
Telegraph Media Group
Terence Higgins Trust
The Headmasters' and Headmistresses' Conference
The Rotherham NHS Foundation Trust
Theatrical Management Association
Turkish/British Chamber of Commerce
UCATT UCLH NHS Foundation Trust
UCU (University and College Union)
UK Athletics UK Athletics Ltd
Universities Personnel Association
University & College Union - Open University Branch
University of Birmingham
University of Central Lancashire
University of London Union
University of the Arts London
Whitehead Mann LLP
Wirral Hospital NHS Trust