Margin Club
Margin Club

What businesses cost, what they earn, and what kills them.

The archive

Every field researched so far. Each dive files the same row, so they can be read against each other.

Field diveFree

Basics of logistics: where the money is actually made

Freight is a thin-margin business that looks like a fat one: the invoices are enormous and almost all of it belongs to somebody else. We priced the three doors in, and where each one actually earns.

Model
Service
To start
€25k
Net margin
8%
Payback
16 mo
Owner
50h/wk
Field diveFree

Business on YouTube monetisation, verified deep dive

A channel is not a business until the money stops coming from the platform. We priced a two-person operation month by month: what AdSense actually pays per view, when sponsorship overtakes it, and the month most channels quit.

Model
Product
To start
€11k
Net margin
29%
Payback
19 mo
Owner
42h/wk
Field diveMembers

Padel clubs: the boom, and the arithmetic underneath it

Four courts, €420k, and a business that only works if you can fill Tuesday at 11am. The occupancy curve nobody publishes.

Model
Asset
To start
€420k
Net margin
28%
Payback
40 mo
Owner
8h/wk
OpinionFree

Capex is not the number. Working capital is.

Almost every plan we see is funded to open and not funded to survive. The months between opening and break-even are where businesses die, and nobody budgets them.

NumbersMembers

What things actually earn: 14 fields, Q3 2026

Gross and net margin, payback and owner hours across fourteen researched fields — the table the rest of the site is built on.

Field diveMembers

Dental clinics: buying a job, or buying a business

One chair is a job with good pay. Four chairs is a business someone will buy. The gap between them is the only thing worth studying.

Model
Service
To start
€320k
Net margin
19%
Payback
27 mo
Owner
35h/wk
Field diveFree

Self-storage: the business that sells you space you already own

A shed, a fence and a payment link. Why the margins are absurd, why the payback is slow, and the one number that decides whether a site works.

Model
Asset
To start
€195k
Net margin
44%
Payback
38 mo
Owner
4h/wk
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