Company lists · Data refreshed November 2026

Top 24 IT system integration services based in Portugal

RevenueBase identified 266 company matches for IT system integration services associated with Portugal as of November 2026 and tracks 4,008 professional contacts across them, including 1,366 with verified work emails. Lisbon is the largest hub.

This list covers company matches for IT system integration services associated with Portugal, 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
266Companies
4,008Contacts tracked
1,366Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 24 largest IT system integration services based in Portugal

Ranked by team size
Top 24 of 266 company matches for IT system integration services based in Portugal, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLisbon, PortugalHQ recorded Nov 6, 20261,001-5,000649 contacts →

Exact match

“Timestamp is a leading IT consultancy with over 20 years’ experience in digital transformation and systems integration.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchPontinha, PortugalHQ recorded Nov 6, 20261,001-5,000222 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchAlfragide, PortugalHQ recorded Nov 6, 2026201-500148 contacts →

Exact match

“Syone is Portugal's leading open source provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchAveiro, PortugalHQ recorded Nov 6, 202651-200101 contacts →

Exact match

“RIS 2048 is a society constituted in the year to aggregate into a single structure the activity of several information systems companies that operated in Portugal’s Northern…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchPorto, PortugalHQ recorded Nov 6, 202651-20092 contacts →

Exact match

“A Decsis é uma empresa de tecnologia fundada em 1994 que ajuda empresas a prosperarem com soluções de TI personalizadas e confiáveis.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchErmesinde, PortugalHQ recorded Nov 6, 202651-20087 contacts →

Exact match

“Having a close relationship with our partners, in Samsys we are dedicated to the delivery and implementation of information systems suited to the specific needs of each business.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchPorto Salvo, PortugalHQ recorded Nov 6, 202651-20085 contacts →

Exact match

“A GuestWorld é a parceira em gestão de talento para organizações que necessitam de escalar operações sem comprometer a qualidade ou a eficiência.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchMatosinhos, PortugalHQ recorded Nov 6, 2026201-50083 contacts →

Exact match

“ITGest is an international technology and information systems company, specialised in digital transformation projects across different industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchPorto, PortugalHQ recorded Nov 6, 202651-20078 contacts →

Exact match

“Optimizer is an IT service and information systems company focused on providing complementary services in the information technology sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchMaia, PortugalHQ recorded Nov 6, 202651-20073 contacts →

Exact match

“C2B Consulting like any other consulting company represents a group of professionals that are keen to provide the best solutions to our present and future customers/partners.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchMatosinhos, PortugalHQ recorded Nov 6, 202651-20073 contacts →

Exact match

“At ORBCOM, we are passionate about technology and innovation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLeiria, PortugalHQ recorded Nov 6, 202651-20069 contacts →

Exact match

“Na Arentia capacitamos empresas para gerir melhor a sua operação através da tecnologia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLisbon, PortugalHQ recorded Nov 6, 2026n/a67 contacts →

Exact match

“A IT Consulting é uma empresa que constrói soluções eficientes nas áreas das tecnologias de informação contribuindo para o desenvolvimento e continuidade do seu negócio.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchPorto, PortugalHQ recorded Nov 6, 202651-20052 contacts →

Exact match

“A oferta da Divultec é centrada na Integração de Sistemas, oferecendo soluções de backup, comunicações, segurança, infraestruturas de servidores e armazenamento, virtualização…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchLeiria, PortugalHQ recorded Nov 6, 202651-20050 contacts →

Exact match

“Com 40 anos de existência e mais de clientes ativos, somos uma das mais antigas softwarehouses portuguesas, com uma forte aposta no apoio direto ao cliente e um serviço de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchLisbon, PortugalHQ recorded Nov 6, 2026201-50049 contacts →

Exact match

“Inspiring Solutions is a company that operates in the Information Technology Integration market, offering its customers a portfolio of innovative solutions and services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchCoimbra, PortugalHQ recorded Nov 6, 202611-5044 contacts →

Exact match

“OneSource is an IT company specialized in the fields of data communications, security, networking and systems management, including the consultancy, auditing, design, development…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLisbon, PortugalHQ recorded Nov 6, 202651-20040 contacts →

Exact match

“A Sendys é uma consultora tecnológica que se dedica ao desenvolvimento, manutenção, comercialização e suporte de soluções de gestão para pequenas, médias e grandes empresas, com…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchLisbon, PortugalHQ recorded Nov 6, 2026501-1,00039 contacts →

Exact match

“A Ten Twenty One faz agora parte da Claranet Portugal, líder em serviços de TI no país.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchMatosinhos, PortugalHQ recorded Nov 6, 202611-5036 contacts →

Exact match

“A all@work nasceu em 2008 e consigo traz os anos de experiência dos seus fundadores e de uma equipa que atua no mercado das Soluções de Tecnologias de Informação, numa estrutura…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchVila Nova De Santo André, PortugalHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“A PLEXUS é uma empresa que se especializou no campo da integração de sistemas, que consiste na ligação de vários sistemas autónomos uns aos outros, de forma a que aparentem e se…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact match165, PortugalHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“Wrightia is a thriving community of highly skilled experts passionate about delivering impactful solutions that address real-world problems and endure over time.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchLoulé, PortugalHQ recorded Nov 6, 2026n/a31 contacts →

Exact match

“J R Informática Soluções Informáticas e Consultadoria”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLisbon, PortugalHQ recorded Nov 6, 202651-20030 contacts →

Exact match

“means an arrangement of parts to bring excellence, and that’s exactly what we do!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 24 of 266 IT system integration services based in Portugal

See the full list, filter by size, metro and specialty, and access 1,366 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

IT system integration services based in Portugal at a glance

As of Nov 6, 2026
34.1%Verified-email coverage
15.1Average contacts per company
1-10Median size (employees)
23.3%Largest-city concentration · Lisbon
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
145
11-50
87
51-200
25
201-500
3
501-1,000
2
1,001-5,000
3

Email recency for this list is measured worldwide rather than for Portugal, so it is reported there. Company counts and contact totals on this page are exact for Portugal, over 266 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 Portugal whose business descriptions match “IT system integration services” 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 1,366 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.

IT system integration services by metro

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 “IT system integration services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT system integration services are there based in Portugal?

RevenueBase identified 266 company matches for IT system integration services associated with Portugal 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?

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

Which city has the most IT system integration services?

Lisbon leads with 62 company records, followed by Porto (16) and Braga (7).

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 1,366 professional contacts with verified work emails tracked across these 266 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.

Ready to reach these companies? Verified emails and direct dials for all 266 IT system integration services based in Portugal. Start with a free account, no credit card.

Download this list →

Related lists

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.