How big is Sumo Coders?

Around 3 full-time equivalents (financial year 2025).

Review: Sumo Coders

Q: Who are the clients of Sumo Coders?

Among others Qmusic, cirQ, Board Coaching To Excellence, ÖkoFEN, T-shaped Academy, G4S België, H2O Group, Nomige, Brandy, Berdea, VIVO, UGent, VTM, Vlaams Woningfonds, Focus Advertising.

Vanuit Gentbrugge werkt Sumo Coders sinds 2010 als digitaal bureau (web & platform). Er werken ongeveer 3 mensen, uitgedrukt in voltijdse equivalenten. Het bureau is toegespitst op webdevelopment. Het zwaartepunt ligt bij opdrachtgevers uit breed b2b; maatwerk web-/app-ontwikkeling.

Awards

2× Feweb Excellence Awards

1

How this agency makes money

Revenue, margin and what an hour of work brings in. Everything on the earning side sits together here.

Revenue trendgross margin per financial year

202020212022202320242025

Latest year: € 369.159 gross margin, growth -35,2% against a sector median of +3,1%.

Shrinking

MarginEBITDA / gross margin · value-added coverage

202020212022202320242025

Sumo CodersSector median

EBITDA margin 48,4%, sector median 22,6%. Value-added coverage 1,95 (median 1,23).

Healthy margin

Revenue per headGross margin per FTE, against payroll cost

€ 108.576

Median (2025) € 77.398

Against a payroll cost of € 55.558 per FTE. The ratio between the two is the coverage rate above.

Above the median

Yield levelYield per hour worked, against payroll cost

€ 69

Median (2025) € 48

5.319 hours worked, 1.564 per FTE. Against that sits € 36 of payroll cost per hour worked, leaving € 34 for premises, equipment, depreciation and profit.

Above the median

No hourly rate follows from this. Gross margin is already net of services and sundry goods, which mixes rebilled production with the agency's own overhead, and the accounts do not say how many hours were billable. Deriving a rate from this systematically understates it.

2

Can the agency take a hit

Buffer, cash position and payment behaviour side by side, so you can see where they disagree.

Bufferequity in months of payroll

Buffer: 34,1 months (median 5,3 mo). Equity in the latest year: € 537.138.

Adequate buffer

Cash positionAvailable cash, and whether it covers short-term debt

Cash € 524.997. Liquidity ratio 1,52: current assets cover short-term debt in full. Solvency 39,3%.

Amply covered

Payment behaviourTowards suppliers and towards the NBB

Trade payables correspond to 20 days of supplier credit, sector median 46. The accounts were filed 122 days after closing; the legal deadline is seven months.

Pays and files on time

3

Signals and strengths

Events from the CBE and the Official Gazette over the past 24 months, plus positive markers derived from the figures.

Continuity

Points to ask about

Signals in the last 24 months

Zichtbaarheid verschoven · 1 Nov 2026 · Google Autocomplete
Zichtbaarheid verschoven · 1 Nov 2026 · Google Autocomplete
Zichtbaarheid verschoven · 1 Oct 2026 · Google Autocomplete
Zichtbaarheid verschoven · 1 Sep 2026 · Google Autocomplete
Zichtbaarheid verschoven · 1 Sep 2026 · Google Autocomplete
Zichtbaarheid verschoven · 1 Aug 2026 · Google Autocomplete
+ 3 older signals within 24m

Click a signal for a plain-language explanation. Each signal is a fact from a public source, without the agency's own context. Best to ask them directly.

What this agency does well

EBITDA margin above the sector median (48,4%)
Strong buffer: 34,1 months of payroll in equity
Value-added per euro of payroll above the sector median (1,95)
Healthy working capital (current ratio 1,52)
Comfortable cash position: 1014 days of payroll

Each point is a fact from the filed annual accounts, measured against the same thresholds and sector medians as the signals above.

4

All the figures

Reference material, not a starting point. Expand it if you want to read the series yourself.

5 financial years, 2021 to 2025Result, staff and balance sheet

	2021	2022	2023	2024	2025
Result
Gross margin	-	€ 623.503	€ 715.570+14,8%	€ 569.781-20,4%	€ 369.159-35,2%
EBITDA	-	€ 368.084	€ 424.942	€ 358.787	€ 178.663
EBITDA margin	-	59%	59,4%	63%	48,4%
Staff
FTE	-	5,0	5,2+4%	4,4-15,4%	3,4-22,7%
Gross margin per FTE	-	€ 124.701	€ 137.610	€ 129.496	€ 108.576
Payroll cost per FTE	-	€ 47.342	€ 52.484	€ 42.639	€ 55.558
Balance sheet
Equity	-	€ 1,53 mln	€ 1,63 mln	€ 1,42 mln	€ 537.138
Cash	-	€ 1,02 mln	€ 210.418	€ 427.209	€ 524.997
Liquidity ratio	-	12,57	12,80	4,96	1,52

Payroll cost per FTE comes from the social report where available, otherwise from the Remuneration line. Both are gross costs including employer contributions.

What this factsheet does not know

How good the work is. Figures do not measure creativity, strategy or chemistry.
How the client portfolio is spread. Concentration is not in the accounts.
Freelancers and subcontractors are not in the FTE figures. An agency with 40 staff may in practice run with 70 people.
The figures cover financial year 2025, filed on 30/01/2026. At a fast-moving agency reality today may differ.

Based on publicly filed annual accounts (NBB) and official records (CBE, Belgian Official Gazette). An indication, not financial advice. Sector medians calculated on 2 Nov 2026. Sector medians based on financial year 2025: the last year for which nearly all accounts have been filed.

What the agency actually does 1 services

Digital Experience & Tech

Website development

Sector focus

Media & entertainmentB2B servicesPublic sector & governmentEducationEnergy & utilities

Publicly known clients

Qmusic, cirQ, Board Coaching To Excellence, ÖkoFEN, T-shaped Academy, G4S België, H2O Group, Nomige, Brandy, Berdea, VIVO, UGent, VTM, Vlaams Woningfonds, Focus Advertising

Based on IKAg research and public sources. Incomplete or outdated? Let us know.

1

People 8 people mapped

This is first a build crew — 5 of 8 are developers. Within that core, Backend and Frontend stand out. A specialist, not a generalist: the expertise is narrow but deep. Notably, no declared strategists in sight — this agency would rather make than philosophise.

J

Jens

Ondernemer

T

Tijs

A

Abraham

D

Daphne

Frontend developer

I

Ilaria

PHP-developer

I

Ilias

PHP-developer

J

Jonas

Backend developer

T

Thijs

Based on public profiles. Something wrong? Let us know.

2

Seniors or juniors?

Payroll cost per FTE is the best public proxy for a team's experience level. Higher is not automatically better, but it says something about who sits at the table.

Payroll cost per FTE

€ 55.558

-12% versus the median

Team composition

3,4 FTE

41% women
59% men

€ 55.558

Median Digitaal bureau (web & platform) (2025) € 63.343All agencies (2025) € 62.294

Read with care. Directors and partners invoicing through a management company are not in the payroll cost. At small agencies this skews the picture downwards considerably.

3

Will your team stay?

Inflow and outflow from the social report. This series only counts people on the payroll: freelancers who invoice do not appear in it. A low figure therefore means two very different things, a stable permanent team or a small core with heavy outsourcing. A high figure usually points to short contracts. Compare only within the same type of agency.

Exits 2025

52,9%

Median for this type of agency (2025): 27,9%

Inflow 2025

58,8%

2,0 FTE in, 1,8 FTE out

Net team change

+0,2 FTE

2022202320242025

Exits are clearly above what is usual for this type of agency. That may reflect project-based staffing, but it is a reason to ask in the pitch how much of the proposed team was already here two years ago, and to contractually fix your permanent contacts.

Source: annual accounts and social reports (NBB), collected by IKAg. Financial year 2025. Calculations by IKAg; an indication, not financial advice. Sector medians based on financial year 2025: the last year for which nearly all accounts have been filed.

Award-winning work 2 award(s)

2017

Feweb Excellence Awards Grand PrixWebsite of the Year (overall) · “KMO Adviesbox (Unizo)” · source ↗
Feweb Excellence Awards GoldNon-Profit · “KMO Adviesbox (Unizo)” · source ↗

As published by the organising award shows, collected by IKAg.