Company lists · Data refreshed September 2026
Top 21 Oil and gas accounting firms based in Portugal
RevenueBase identified 68 oil and gas accounting firms headquartered in Portugal as of September 2026 and tracks 530 professional contacts across them, including 47 with verified work emails and 24 with mobile numbers. Lisboa is the largest hub.
This list covers oil and gas accounting firms headquartered in Portugal, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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.
The 21 largest oil and gas accounting firms based in Portugal
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 25 | ||||
“Despite being a young company, C.'s origin dates back to 1997, now gaining new momentum with a renewed motivation and a multidisciplinary team that brings together different but…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 19 | ||||
“A essência dos nossos serviços assenta na superação das expetativas dos nossos clientes!” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 14 | ||||
“A Sociedade tem por objecto a Revisão Legal de Contas, a Auditoria Financeira às Contas e aos serviços relacionados de empresas ou de outras entidades e de quaisquer funções que…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 8 | ||||
“HISTÓRIA A nossa história remonta aos anos 90, altura em que António Belém e António Gonçalves abraçaram a profissão de Revisores Oficiais de Contas.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 8 | ||||
“Fundada em 1992, a Contamestre tem como objetivo, realizar serviços com qualidade, eficiência, eficácia, rigor e competência.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 7 | ||||
“Desde junho de 2013 que construímos uma equipa e uma rede de parcerias sólidas que nos permitem prestar um serviço especializado e adequado a cada um dos nossos clientes.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 6 | ||||
“A sociedade Ricardo Pereira & Associados – SROC, Lda.(RPA) desenvolve a sua atividade desde 2011, inicialmente sob a forma individual e depois sob a forma societária.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 5 | ||||
“Com uma vasta experiência na prestação de serviços especializados de Consultoria e Contabilidade, fornecemos ferramentas fundamentais de apoio à gestão através do aconselhamento…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | LumarcontPartial evidence | 4 | |||
“Lumarcont - luisa Martins Contabilidade Lda is an accounting company based out of Rua de São Luis nº21a, Faro, Portugal.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 3 | ||||
“Na CF5 dedicamo-nos à consultoria contabilística, auditoria e à gestão financeira das empresas.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 3 | ||||
“Conta 100% is an accounting company based out of R.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 2 | ||||
“Atividades de consultoria de gestão e contabilidade” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | Post ScriptumPartial evidence | 2 | |||
“POST SCRIPTUM - CONTABILIDADE E SERVIÇOS, LDA is an accounting company based out of lISBOA, Portugal.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 2 | ||||
“Auditoria / Revisão Legal de Contas, Consultoria, Assessoria Fiscal, Assessoria Económico-Financeira, Controlo Interno, Avaliação de Empresas, Controlo de Subsídios, Consolidação…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 2 | ||||
“A hwkconsulting é uma empresa de serviços financeiros que atua principalmente na área da contabilidade, consultoria e auditoria financeira, assessoria fiscal, créditos e seguros.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | N-Prosper, Contabilidade ConsultoriaIndirect evidence | 2 | |||
“contabilidade, assessoria e consultoria” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 2 | ||||
“Somos uma empresa especializada na prestação de serviços de contabilidade e consultoria de gestão nas áreas financeira e fiscal.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2 | ||||
“A Escrita Funcional é uma empresa que opera na área da contabilidade, consultoria e apoio à gestão, de acordo com as necessidades específicas de cada cliente.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 1 | ||||
“TSG offers audit, consulting and tax professional services, relying on a highly specialized and experienced team for a multidisciplinary response to the needs of companies…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1 | ||||
“Accounting, Tax, Consulting.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1 | ||||
Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 21 of 68 oil and gas accounting firms based in Portugal
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Oil and gas accounting firms based in Portugal at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among oil and gas accounting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.
- 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
- Companies headquartered in Portugal whose own description of what they do matches “oil and gas accounting firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among oil and gas accounting firms, and records with no verified work email. Companies headquartered outside Portugal are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 47 across the full list. 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 September 5, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
How many oil and gas accounting firms are there based in Portugal?
RevenueBase identified 68 oil and gas accounting firms headquartered in Portugal as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Carmo & Cerqueira, headquartered in Vila Nova De Gaia, tops this list with the largest team on record.
Which city has the most oil and gas accounting firms?
Lisboa leads with 13 headquartered companies, followed by Porto (7) and Amadora (3).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 47 verified decision-maker contacts tracked across these 68 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 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.
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