Moat

Also called Competitive advantage, Barrier to entry, Defensibility

Whatever makes it hard for a competitor to take your customers. Most small businesses have less of one than they think.

What it means

A moat is a durable advantage that competitors cannot easily copy: switching costs, network effects, a genuine cost advantage, a strong brand, regulatory approval, proprietary technology, or a distribution relationship.

Working harder is not a moat. Being nicer is not a moat.

Why it matters

It determines whether a good business stays good. Without one, success attracts competition and margins fall to the level of the least disciplined entrant.

It is also what a buyer pays a premium for, because they are buying future profits and want to know they are defensible.

What it looks like in practice

Ask honestly: if a well-funded competitor set up next month, what stops your best customer moving?

Realistic small-business moats: deep specialist knowledge in a niche too small to attract large competitors, accreditation that takes years, genuine switching costs from integration, and local reputation over a long period.

They can be built deliberately — long-term contracts, integrations, certifications, data that improves the service.

What to watch out for

Confusing a lead with a moat. Being first means nothing if the second entrant can catch up in a quarter.

Relying on a moat that is really a relationship with one person, who will eventually leave.

Where to get proper advice

Ask customers what they would do if you closed tomorrow. The answer is the moat, described accurately.