Definition
Serviceable Obtainable Market is the slice of SAM you can win in a time window — usually 12 to 36 months — given sales capacity, brand, and competition. It is the number that should match the hiring and fundraising plan. SOM is a target, not a dream.
In the room
How the word shows up in a real conversation.
SAM is 40,000 clinics. The team can onboard 80 a month with two salespeople. A two-year SOM is about 1,900 clinics, not 40,000. That SOM drives headcount, not the other way around.
Formula
SOM ≈ SAM × realistic win rate in the planning window
Common mistake
Setting SOM as “1% of TAM” with no capacity story. Percentages are not a plan.
See also
Total Addressable Market (TAM)
Total revenue opportunity available for a product or service in a market.
Read definition →
Serviceable Available Market (SAM)
The share of TAM you can actually reach with your product, channels, and constraints.
Read definition →
Go-to-market strategy
How you reach a specific customer, with a specific offer, through a specific motion.
Read definition →
Beachhead market
The first narrow customer you can win completely before you expand.
Read definition →
From the store
Research more
Open the word in an AI tool with a ready prompt. We do not send your data.
Get one word every week
A 3-minute read: 1 word, 1 founder lesson, 1 tool.