OMÚ

Heraklion

Greece

On the Fifth Day

BEECH GROVE Tennessee

USA

On the Wing Again Rehabilitation Center

MESQUITE Texas

USA

ONDAID - Observatório Nacional para a Defesa dos Animais e Interesses Difusos

SINTRA

Portugal

One Animal Family

Florida

USA

One Green Planet

New York

USA

One Heart Four Paws

WEEHAWKEN New Jersey

USA

One More Generation

FAYETTEVILLE Georgia

USA

One Nature

WASHINGTON District of Columbia

USA

One People Against Cruelty

JERUSALEM

Israel

One Voice - Cirques.org

STRASBOURG CEDEX

France

One Welfare Community Interest Company

United Kingdom

One World Actors Prods. -Animal Rescues

Saint Molf New South Wales

France

OneKind, formerly Advocates for Animals

EDINBURGH

United Kingdom

Ong Anjos d´Ajuda

ARRAIAL D´AJUDA, PORTO SEGURO

Brazil

ONG MONDE COMMUN SOS ANIMALS

Brazzaville Northern Territory

Congo

Ongehoord

AMSTERDAM

Netherlands

Online Pet Adoption

BOYNTON BEACH Florida

USA

Only Humane Training & Consulting

DES MOINES Washington

USA

Onslow County Animal Control Shelter

JACKSONVILLE North Carolina

USA

Ontario Animal Control

ONTARIO Oregon

USA

Ontario County Humane Society

CANANDAIGUA New York

USA

Ontario SPCA

NEWMARKET Ontario

Canada

Ontario SPCA Leeds & Grenville Branch

BROCKVILLE Ontario

Canada

Ontario SPCA Wildlife Rehabilitation Centre

PORT MCNICOLL Ontario

Canada

Ontario Standardbred Adoption Society

CAMPBELVILLE Ontario

Canada

Ontario Wildlife Rehab & Education Network - OWREN

WELLAND Ontario

Canada

Opelika Animal Control

OPELIKA Alabama

USA

Opelousas Animal Shelter

OPELOUSAS Louisiana

USA

Open Door Animal Sanctuary

HOUSE SPRINGS Missouri

USA

Open Hearts Rescue / Kids For A Better Environment (K.F.A.B.E.)

FORT MITCHELL Kentucky

USA

Open Wing Alliance - Humane League

ROCKVILLE Maryland

USA

OpenRescue.org

Victoria

Australia

Opera for Animals: Singing is Saving - OASIS

SARASOTA Florida

USA

Operation Catnip

GAINESVILLE Florida

USA

Operation Catnip of Raleigh

RALEIGH North Carolina

USA

Operation Catnip of Richmond, Inc.

QUINTON Virginia

USA

Operation K9 Rescue Center

ENCINITAS California

USA

Operation Kindness

CARROLLTON Texas

USA

Operation Noble Foster

Ohio

USA

Operation Stop Pet Overpopulation Today

SAINT LOUIS Missouri

USA

Operation Street Cat Society

PRINCE GEORGE British Columbia

Canada

Operation Toby, Inc.

KURRAJONG HEIGHTS New South Wales

Australia

Opossum Society of the US

IRVINE California

USA

Opvangcentrum voor Wilde Dieren Coutisse - Veeweyde

COUTISSE

Belgium

ORA-Organization for the Rescue of Animals

TORONTO Ontario

Canada

Orang Utan Republik Foundation

SANTA MONICA California

USA

Orang-Utan Schutzprojekt der Zoologischen Gesellschaft Frankfurt (ZGF)

FRANKFURT AM MAIN

Germany

Orange County Animal Care Services

ORANGE California

USA

Orange County Animal Control

HILLSBOROUGH North Carolina

USA