Bred to work in a crowd
The Springer was built for the shooting field: flushing game within range of the guns, working hour after hour in company with other dogs, handlers and beaters. Sociability is not a bonus trait in this breed, it is a working requirement, and the pet Springer inherits it whole. Most Springers read other dogs skilfully, play with commitment and fairness, and genuinely prefer a household with a playmate to one without. If your question is simply whether a Springer will like your other dog, the answer is almost certainly yes.
Energy is the compatibility test
The variable that decides success is pace. A Springer needs serious daily exercise and, just as much, mental work; an under-occupied Springer does not become lazy, he becomes employed — by himself, at your other dog's expense. Paired with an elderly or sedentary housemate, that looks like dawn-to-dusk play invitations, stolen beds, and a senior dog with nowhere to hide. Paired with a young retriever or herding breed, the same energy becomes mutual joy with a side of mutual winding-up. Either way, separate rest zones and enforced downtime are structural necessities in a Springer household, not refinements.
When two busy dogs egg each other on
Springer-plus-similar is the combination owners underestimate. Two high-drive dogs can build each other into garden circuits, barking relays and a general household hum that neither would produce alone. The antidote is unglamorous: train each dog separately as well as together, so both keep an individual off switch and a bond with you that does not route through the other dog, and keep some walks solo. A Springer who can settle alone is a Springer who can live with anyone.
Channel the nose
The Springer's nose is his engine, and multi-dog homes run better when it has sanctioned work: scatter feeding in the garden, retrieving games with rules, scent games rotated between the dogs so each works while the other watches from behind a gate. Give the Springer jobs and he stops inventing employment — counter-surfing while the others nap, excavating the shared garden, redecorating with stolen laundry. Housemates benefit too: a tired Springer is the most peaceable dog in the house.
Thinking it through as you go
Settling a high-energy dog into an existing pack throws up a new question most days — how long to keep the gate up, whether the senior dog's grumble was fair, how to split the morning routine. For those daily judgement calls, put a follow-up question to KinsLe's Kimmy; she answers using the KinsLe Answers library.