
A pet shop or pet store is a retail business which sells different kinds of animals to the public. A variety of animal supplies and pet accessories are also sold in pet shops. The products sold include: food, treats, toys, collars, leashes, cat litter, cages and aquariums. Some pet stores provide engraving services for pet tags, which have the owner's contact information in case the pet gets lost.

Chewy, Inc. is an American online retailer of pet food and other pet-related products based in Dania Beach, Florida. In 2017, Chewy was acquired by PetSmart for $3.35 billion, which was the largest ever acquisition of an e-commerce business at the time. The company completed its initial public offering in 2019, raising $1 billion.

Mud Bay is an American employee owned pet store. The company was founded in 1988, in a 1905 feed store at Mud Bay Road and Kaiser Road in Olympia, Washington on the then-rural western border of the city, above Mud Bay, the southern end of Eld Inlet.

Pet Circle is an Australian online pet supplies company based in Alexandria, New South Wales, Australia, founded by Mike Frizell and James Edwards in 2011.

Pet Lovers Centre Pte Ltd (PLC) is an Asian retailer of pet products and services. It is one of the largest and oldest pet store chains in Singapore. Today, PLC has 66 stores in Singapore, 37 stores in Malaysia, 9 stores in Thailand, 3 stores in Vietnam, and 2 stores in Philippines.
Pet Supplies Plus, founded in 1988 in Redford, Michigan in the United States, is a privately held pet supply retailing corporation with a major presence in the US. As of 2005, it was the third largest specialty pet food retailer in the US. The company began adding franchise locations in the Midwest, expanding into the northeastern and southern states during the late 1990s. In 2015, Pet Supplies Plus store locations consisted of over 490 stores in 25 states.

Petcetera was a pet specialty supply retailer founded in Richmond, British Columbia in 1997 by Dan Urbani. The chain had expanded to 49 stores and 1,600 employees across Canada, before filing for bankruptcy in 2009. A number of restructures followed until the final store was closed in 2014.
Petco Animal Supplies, Inc., or simply Petco, is an American pet retailer in the United States, with corporate offices in San Diego and San Antonio. Petco sells pet products and services, as well as certain types of live animals. Petco sells and holds fish, reptiles, small birds, hamsters, guinea pigs, and mice for adoption. Pet services include grooming and dog training. The company also owns the naming rights to the Petco Park baseball stadium, which is home of the San Diego Padres.

Petland is a privately owned operator and franchisor of pet stores based in Chillicothe, Ohio. Ed Kunzelman founded the company in 1967. Petland currently operates 131 stores in the United States, and at least 63 in foreign markets including South Africa, Canada, Japan, China, Mexico, Brazil and El Salvador. The chain is notable for its controversy over documentation from the Humane Society of the United States revealing the purchase of dogs from puppy mills.

Pets at Home is a pet supplies retailer selling pet products including food, toys, bedding, medication, accessories and pets. It is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index.

PetSmart Charities and PetSmart Charities of Canada are non-profit organizations dedicated to saving the lives of homeless pets. In the United States, PetSmart Charities is the largest financial supporter of animal welfare and among the 400 largest philanthropic organizations working on any issue. PetSmart Charities was formed in 1994 by PetSmart founders Jim and Janice Dougherty, who chose never to sell dogs and cats within their stores. Their primary goal is to save the lives of homeless pets through programs such as their In-Store Adoption Centers in many PetSmart locations, Rescue Waggin' distaser relief program, grant program for animal welfare agencies across North America, and community adoption events. Another focus of the organization is increasing spay/neuter services to help communities solve the problem of pet overpopulation.

Amazon.com, Inc., is an American multinational technology company based in Seattle, Washington, which focuses on e-commerce, cloud computing, digital streaming, and artificial intelligence. It is considered one of the Big Five companies in the U.S. information technology industry, along with Google, Apple, Microsoft, and Facebook. The company has been referred to as "one of the most influential economic and cultural forces in the world", as well as the world's most valuable brand.

Zooplus AG is an online retailer of pet food and supplies with headquarters in Munich, Germany. Founded in 1999, the E-commerce company ships now to 30 countries in Europe and the United Kingdom. After its IPO in 2008, Zooplus is listed at Frankfurt Stock Exchange and a constituent of the SDAX stock market index.