The dogs were discovered at an address, in Braintree Road, Dunmow, on Thursday, the police confirmed. The canines included spaniels, a French bulldog, and a rottweiler.
“If you have any information about the theft of a dog then we need you to contact us.”
Lurchers and terriers were also some of the breeds that were seized.
Essex police added some of the dogs “may have been born on site”.
It comes after 83 dogs believed to have been stolen were also seized in a police raid in Ipswich last month, in a separate incident.
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He said: “I know many victims of these crimes will be anxious to know whether or not we have recovered their pet.
“I would like to reassure them that we are working as quickly as possible to identify who all the dogs belong to and aim to reunite them with their owners as soon as we can.”
Two men aged 34, a 38-year-old man and three women aged 35, 41, and 46 were kept in police custody.
A 14-year-old boy was also arrested at the end of last month after two black Labradors were stolen outside a Marks and Spencers, in Nantwich, Cheshire.
Police later said the dogs had been found at an address almost 20 miles away in Stoke-on-Trent.
A spokesman for Cheshire Police said: “The stolen dogs have been recovered from an address in Stoke-on-Trent this morning (Tuesday 30 March) and returned to their owners.
“Three people who were at the address – a man, a woman and a 14-year-old boy – have all been arrested on suspicion of theft in relation to the incident.
“They are currently on their way to custody to be questioned as part of our ongoing investigation into the dog thefts.”