Company lists · Data refreshed November 2026

Top 24 Custom application development consultants based in Belgium

Name: Custom application development consultants based in Belgium
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 644 companies tracked

RevenueBase identified 644 company matches for custom application development consultants associated with Belgium as of November 2026 and tracks 9,615 professional contacts across them, including 3,845 with verified work emails. Brussels is the largest hub.

This list covers company matches for custom application development consultants associated with Belgium, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built

644Companies

9,615Contacts tracked

3,845Verified emails

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The 24 largest custom application development consultants based in Belgium

Ranked by team size

Top 24 of 644 company matches for custom application development consultants based in Belgium, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	NSI	Exact match	Belgique, BelgiumHQ recorded Nov 6, 2026	1,001-5,000	844 contacts →
	Exact match “Votre partenaire digital de proximité Chez NSI nous vous accompagnons de A à Z dans la création de solutions IT sur-mesure, adaptées à vos besoins uniques.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	BHC	Exact match	Mons, BelgiumHQ recorded Nov 6, 2026	n/a	367 contacts →
	Exact match “BHC is a professional IT Services company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Alistar	Exact match	Ghent, BelgiumHQ recorded Nov 6, 2026	501-1,000	307 contacts →
	Exact match “Alistar is a full-service technology partner that streamlines business operations and accelerates growth with bespoke digital solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Savaco	Exact match	Kortrijk, BelgiumHQ recorded Nov 6, 2026	201-500	275 contacts →
	Exact match “Your organization deserves a partner who truly understands digital transformation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Aberdeen Services	Exact match	Brussels, BelgiumHQ recorded Nov 6, 2026	51-200	207 contacts →
	Exact match “ABERDEEN Services is a consulting firm founded in 2012 by Alec BERNARD and Mathieu VERGER.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Wavenet Belgium	Exact match	Leuze-en-hainaut, BelgiumHQ recorded Nov 6, 2026	201-500	196 contacts →
	Exact match “Wavenet is a growing ICT company providing cutting-edge IT services and solutions based on the latest technologies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Ausy Belgium	Exact match	Wilsele, BelgiumHQ recorded Nov 6, 2026	1,001-5,000	149 contacts →
	Exact match “At Ausy, we’ve been providing technological solutions for over 30 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Infanion	Exact match	Tremelo, BelgiumHQ recorded Nov 6, 2026	51-200	127 contacts →
	Exact match “Infanion is a full-stack custom software development company specialized in custom software solutions, web applications, mobile apps, cloud services and the integrations of all…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	ASIST	Exact match	Schaerbeek, BelgiumHQ recorded Nov 6, 2026	11-50	99 contacts →
	Exact match “Asist is a specialist IBM mainframe consulting practice.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Allphi	Exact match	Westerlo, BelgiumHQ recorded Nov 6, 2026	51-200	88 contacts →
	Exact match “At AllPhi, we’re more than just a software consultancy company, we’re your partner in building intelligent, future-ready solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	SIGLI	Exact match	Antwerp, BelgiumHQ recorded Nov 6, 2026	51-200	81 contacts →
	Exact match “Sigli is a dynamic software development company specializing in Digital Product Development and Digital Transformation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Peopleware	Exact match	Lier, BelgiumHQ recorded Nov 6, 2026	51-200	76 contacts →
	Exact match “Onze klanten hebben één ding gemeen: ze zijn uniek en daarom kiezen zij voor maatsoftware om dat unieke karakter strategisch te maximaliseren.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Icapps	Exact match	Antwerp, BelgiumHQ recorded Nov 6, 2026	51-200	70 contacts →
	Exact match “We thrive on top-notch applications, innovative technologies, and future-proof products with a steady, solid base.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Euricom	Exact match	Mechelen, BelgiumHQ recorded Nov 6, 2026	51-200	66 contacts →
	Exact match “Sinds bouwen we bij Euricom software op maat die onze klanten vooruit helpt.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Inuits	Exact match	Brasschaat, BelgiumHQ recorded Nov 6, 2026	51-200	66 contacts →
	Exact match “Working with Inuits means entering into a partnership with a focus on technological innovation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Idealis Consulting	Exact match	Louvain-la-neuve, BelgiumHQ recorded Nov 6, 2026	51-200	65 contacts →
	Exact match “Mission Lead our clients in their digital transformation How?” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	We Fix-It	Exact match	Hasselt, BelgiumHQ recorded Nov 6, 2026	51-200	63 contacts →
	Exact match “WE FIX-IT, established in 2010, is a consulting company specializing in IT and Technical Services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	In4matic	Exact match	Landegem (deinze), BelgiumHQ recorded Nov 6, 2026	51-200	60 contacts →
	Exact match “In4Matic is an IT-consulting company with over 25 years of experience that delivers IT services to several business sectors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	PHPRO	Exact match	Kontich, BelgiumHQ recorded Nov 6, 2026	51-200	59 contacts →
	Exact match “At PHPro, we build high-performing websites, e-commerce platforms, and applications that truly make an impact, always aligned with your strategic goals.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Genesis Consult	Exact match	St-lambrechts-woluwe, BelgiumHQ recorded Nov 6, 2026	51-200	51 contacts →
	Exact match “Genesis Consult is a service company specialized in application development located in Woluwe Saint Lambert.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Lemon Companies	Exact match	Kontich, BelgiumHQ recorded Nov 6, 2026	51-200	49 contacts →
	Exact match “Business impact creëren met onze digitale oplossingen.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	DEUSE	Exact match	Liège, BelgiumHQ recorded Nov 6, 2026	11-50	48 contacts →
	Exact match “Deuse is a computer engineering company specialised in tailor-made developments and digital tools for all your bold projects.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Nascom	Exact match	Genk, BelgiumHQ recorded Nov 6, 2026	11-50	47 contacts →
	Exact match “We are different, and believe we are uniquely positioned between business and IT, with a strong emphasis on enterprise integrations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Nish Tech BV	Exact match	St-stevens-woluwe, BelgiumHQ recorded Nov 6, 2026	51-200	46 contacts →
	Exact match “At NISH Tech BV, we don’t just deliver cutting-edge IT solutions, we build careers, nurture talent, and create an environment where innovation thrives.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “custom application development consultants”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 24 of 644 custom application development consultants based in Belgium

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Custom application development consultants based in Belgium at a glance

As of Nov 6, 2026

40.0%Verified-email coverage

14.9Average contacts per company

1-10Median size (employees)

9.2%Largest-city concentration · Brussels

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

432

11-50

130

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for Belgium, so it is reported there. Company counts and contact totals on this page are exact for Belgium, over 644 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Belgium whose business descriptions match “custom application development consultants” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 3,845 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Custom application development consultants by metro

Custom application development consultants in Brussels59

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “custom application development consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many custom application development consultants are there based in Belgium?

RevenueBase identified 644 company matches for custom application development consultants associated with Belgium as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

NSI tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most custom application development consultants?

Brussels leads with 59 company records, followed by Antwerp (21) and Ghent (21).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 3,845 professional contacts with verified work emails tracked across these 644 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.