Company lists · Data refreshed November 2026
Top 25 Oil and gas tax firms based in Canada
RevenueBase identified 527 company matches for oil and gas tax firms associated with Canada as of November 2026 and tracks 4,376 professional contacts across them, including 1,729 with verified work emails. Toronto is the largest hub.
This list covers company matches for oil and gas tax firms associated with Canada, 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 4, 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 25 largest oil and gas tax firms based in Canada
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 270 contacts → | ||||
Exact match “For more than 70 years, our focus has always been to bring financial peace of mind to our Canadian business owners.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 2 | 182 contacts → | ||||
Exact match “Depuis maintenant plus de 60 ans, BVA a développé une panoplie de services axés sur les préoccupations des entrepreneurs, des professionnels et des dirigeants d’entreprises.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 3 | 180 contacts → | ||||
Exact match “Zeifmans is a full-service tax, accounting and consulting firm based in Toronto, Canada.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 4 | 116 contacts → | ||||
Exact match “Thorsteinssons is the largest Canadian law firm practicing exclusively in Tax.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 5 | 105 contacts → | ||||
Exact match “Marcil Lavallée est un partenaire engagé qui contribue activement à la réussite de ses clients en anticipant leurs besoins et en leur offrant une gamme complète de solutions…” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 6 | 100 contacts → | ||||
Exact match “Located in the heart of Downtown Vancouver, Invictus Accounting Group LLP provides consulting, accounting and tax advisory for publicly listed and privately held companies.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 7 | 97 contacts → | ||||
Exact match “GGFL is the tax planning and accounting firm for Ottawa’s successful business people.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 8 | 77 contacts → | ||||
Exact match “At KMSS we strive to provide an extraordinary experience.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 9 | 76 contacts → | ||||
Exact match “S+C Partners has been providing professional accounting, advisory and tax services across the GTA since 1987.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 10 | 76 contacts → | ||||
Exact match “At Baker Tilly Ottawa LLP, we provide expert tax, assurance, and entrepreneurial services to help your business grow and prosper.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 11 | 69 contacts → | ||||
Exact match “SRJ Chartered Accountants is a cloud based Canadian full-service tax and accounting firm located in the heart of downtown Toronto, Mississauga and Oakville.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 12 | 61 contacts → | ||||
Exact match “Services * Expansion américaine et/ou internationale;* Conformité fiscale américaine (corporative);* Conformité fiscale américaine (individu);* « Snowbirds » et immobilier…” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 13 | 56 contacts → | ||||
Exact match “At Horizon Chartered Professional Accountants we know that financial success is achieved by more than careful planning and experienced decision-making: it is realized through a…” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 14 | 55 contacts → | ||||
Exact match “At Romanovsky and Associates we are committed to providing high quality services that are needed in today's competitive market place.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 15 | 51 contacts → | ||||
Exact match “Since 1987, Hutcheson & Co.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 16 | 45 contacts → | ||||
Exact match “Welcome to Farnham.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 17 | 44 contacts → | ||||
Exact match “Teed Saunders Doyle are your local partners in accounting, taxation and business advisory services.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 18 | 41 contacts → | ||||
Exact match “Cadesky Tax is an independent tax consulting firm.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 19 | 39 contacts → | ||||
Exact match “Rosen & Associates Tax Law (“R&A Tax Law) is a national tax law firm based in Toronto, Ontario.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 20 | 32 contacts → | ||||
Exact match “Planification fiscale, financière et successorale” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 21 | 31 contacts → | ||||
Exact match “Founded in 1952, Powell Jones LLP is an independent locally based accounting firm that has been serving individuals and businesses throughout Barrie and Simcoe County for over 65…” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 22 | 30 contacts → | ||||
Exact match “SBLR LLP is a rapidly evolving mid-sized accounting and tax firm that focuses on delivering top service to the small and medium-size entrepreneurial business owner.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 23 | 25 contacts → | ||||
Exact match “Our firm was founded to provide quality cross-border tax services based on the following 4 key principles: Effective tax planning We try to provide value for our fees whether we…” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 24 | 24 contacts → | ||||
Exact match “At Clarke Starke & Diegel LLP, we have been working with organizations and individuals – and helping them – since 1972.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 25 | 21 contacts → | ||||
Exact match “Kaushal & Co.” Recorded in the RevenueBase company graph · Nov 4, 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 “oil and gas tax firms”. 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 25 of 527 oil and gas tax firms based in Canada
See the full list, filter by size, metro and specialty, and access 1,729 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Oil and gas tax firms based in Canada at a glance
As of Nov 4, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 527 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 Canada whose business descriptions match “oil and gas tax firms” 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 1,729 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 4, 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.
Oil and gas tax firms 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 “oil and gas tax firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many oil and gas tax firms are there based in Canada?
RevenueBase identified 527 company matches for oil and gas tax firms associated with Canada 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?
FBC Farm And Small Business TAX Consultants tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most oil and gas tax firms?
Toronto leads with 64 company records, followed by Calgary (45) and Mississauga (36).
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 1,729 professional contacts with verified work emails tracked across these 527 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 4, 2026.
Ready to reach these companies? Verified emails and direct dials for all 527 oil and gas tax firms based in Canada. Start with a free account, no credit card.
Download this list →Related lists
Oil and gas tax firms by geography
- Oil and gas tax firms based in Melbourne, Australia
- Oil and gas tax firms based in Sydney, Australia
- Oil and gas tax firms based in Vienna, Austria
- Oil and gas tax firms based in Belo Horizonte, Brazil
- Oil and gas tax firms based in Curitiba, Brazil
- Oil and gas tax firms based in Porto Alegre, Brazil
- Oil and gas tax firms based in Rio De Janeiro, Brazil
- Oil and gas tax firms based in Sao Paulo, Brazil
- Oil and gas tax firms based in Calgary, Canada
- Oil and gas tax firms based in Mississauga, Canada
- Oil and gas tax firms based in Toronto, Canada
- Oil and gas tax firms based in Paris, France
Browse the directory
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Oil and gas tax firms based in Melbourne, Australia
- Oil and gas tax firms based in Sydney, Australia
- Oil and gas tax firms based in Vienna, Austria
- Oil and gas tax firms based in Belo Horizonte, Brazil
- Oil and gas tax firms based in Curitiba, Brazil
- Oil and gas tax firms based in Porto Alegre, Brazil
Company intelligence · public preview
Top 25 oil and gas tax firms based in Canada
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 527 matching company records for oil and gas tax firms based in Canada, with 4,376 tracked contacts and 1,729 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 4, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 oil and gas tax firms based in Canada
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | HQ: Calgary, ON, CanadaReported employees: 201-500 | Calgary, ON, Canada | 201-500 | Exact match | 270 contacts → |
“For more than 70 years, our focus has always been to bring financial peace of mind to our Canadian business owners.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  BVAbvacpa.caHQ: Sainte-marie, QC, CanadaReported employees: 201-500 | Sainte-marie, QC, Canada | 201-500 | Exact match | 182 contacts → |
“Depuis maintenant plus de 60 ans, BVA a développé une panoplie de services axés sur les préoccupations des entrepreneurs, des professionnels et des dirigeants d’entreprises.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Zeifmanszeifmans.caHQ: Toronto, ON, CanadaReported employees: 51-200 | Toronto, ON, Canada | 51-200 | Exact match | 180 contacts → |
“Zeifmans is a full-service tax, accounting and consulting firm based in Toronto, Canada.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Thorsteinssons TAX Lawyersthor.caHQ: Vancouver, ON, CanadaReported employees: 51-200 | Vancouver, ON, Canada | 51-200 | Exact match | 116 contacts → |
“Thorsteinssons is the largest Canadian law firm practicing exclusively in Tax.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Marcil Lavalléemarcil-lavallee.caHQ: Ottawa, ON, CanadaReported employees: 51-200 | Ottawa, ON, Canada | 51-200 | Exact match | 105 contacts → |
“Marcil Lavallée est un partenaire engagé qui contribue activement à la réussite de ses clients en anticipant leurs besoins et en leur offrant une gamme complète de solutions…” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Invictus Accounting Group LLPinvictusaccounting.comHQ: Vancouver, BC, CanadaReported employees: 51-200 | Vancouver, BC, Canada | 51-200 | Exact match | 100 contacts → |
“Located in the heart of Downtown Vancouver, Invictus Accounting Group LLP provides consulting, accounting and tax advisory for publicly listed and privately held companies.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Ggfl LLPggfl.caHQ: Ottawa, ON, CanadaReported employees: 51-200 | Ottawa, ON, Canada | 51-200 | Exact match | 97 contacts → |
“GGFL is the tax planning and accounting firm for Ottawa’s successful business people.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Calgary, AB, CanadaReported employees: 51-200 | Calgary, AB, Canada | 51-200 | Exact match | 77 contacts → |
“At KMSS we strive to provide an extraordinary experience.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  S C Partnersscpllp.comHQ: Mississauga, ON, CanadaReported employees: 51-200 | Mississauga, ON, Canada | 51-200 | Exact match | 76 contacts → |
“S+C Partners has been providing professional accounting, advisory and tax services across the GTA since 1987.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Baker Tilly Ottawa LLPbakertilly.caHQ: Ottawa, ON, CanadaReported employees: 51-200 | Ottawa, ON, Canada | 51-200 | Exact match | 76 contacts → |
“At Baker Tilly Ottawa LLP, we provide expert tax, assurance, and entrepreneurial services to help your business grow and prosper.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HQ: Toronto, ON, CanadaReported employees: 51-200 | Toronto, ON, Canada | 51-200 | Exact match | 69 contacts → |
“SRJ Chartered Accountants is a cloud based Canadian full-service tax and accounting firm located in the heart of downtown Toronto, Mississauga and Oakville.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Cfla S.E.N.C.R.L. LLPcfla-intl.comHQ: Brossard, QC, CanadaReported employees: 51-200 | Brossard, QC, Canada | 51-200 | Exact match | 61 contacts → |
“Services * Expansion américaine et/ou internationale;* Conformité fiscale américaine (corporative);* Conformité fiscale américaine (individu);* « Snowbirds » et immobilier…” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Horizon Chartered Professional Accountantshorizoncpa.caHQ: Vancouver, CanadaReported employees: 11-50 | Vancouver, Canada | 11-50 | Exact match | 56 contacts → |
“At Horizon Chartered Professional Accountants we know that financial success is achieved by more than careful planning and experienced decision-making: it is realized through a…” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Romanovsky & Associates LLPromanovsky.comHQ: Edmonton & Toronto, CanadaReported employees: 11-50 | Edmonton & Toronto, Canada | 11-50 | Exact match | 55 contacts → |
“At Romanovsky and Associates we are committed to providing high quality services that are needed in today's competitive market place.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Hutcheson & CO CPA LLPhutcheson.caHQ: Victoria, BC, CanadaReported employees: 11-50 | Victoria, BC, Canada | 11-50 | Exact match | 51 contacts → |
“Since 1987, Hutcheson & Co.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Farnham Accountants & Advisorsfarnhamco.caHQ: Mississauga, ON, CanadaReported employees: 11-50 | Mississauga, ON, Canada | 11-50 | Exact match | 45 contacts → |
“Welcome to Farnham.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Teed Saunders Doyleteedsaundersdoyle.comHQ: Fredericton, NB, CanadaReported employees: 11-50 | Fredericton, NB, Canada | 11-50 | Exact match | 44 contacts → |
“Teed Saunders Doyle are your local partners in accounting, taxation and business advisory services.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Cadesky TAXcadesky.comHQ: Toronto, ON, CanadaReported employees: 11-50 | Toronto, ON, Canada | 11-50 | Exact match | 41 contacts → |
“Cadesky Tax is an independent tax consulting firm.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Rosen & Associates TAX LAWrosentaxlaw.comHQ: Toronto, ON, CanadaReported employees: 11-50 | Toronto, ON, Canada | 11-50 | Exact match | 39 contacts → |
“Rosen & Associates Tax Law (“R&A Tax Law) is a national tax law firm based in Toronto, Ontario.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Diversico, Experts-Conseilsdiversico.caHQ: Brossard, QC, CanadaReported employees: 51-200 | Brossard, QC, Canada | 51-200 | Exact match | 32 contacts → |
“Planification fiscale, financière et successorale” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Powell Jones LLPpowelljones.caHQ: Barrie, ON, CanadaReported employees: 11-50 | Barrie, ON, Canada | 11-50 | Exact match | 31 contacts → |
“Founded in 1952, Powell Jones LLP is an independent locally based accounting firm that has been serving individuals and businesses throughout Barrie and Simcoe County for over 65…” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HQ: Toronto, ON, CanadaReported employees: 11-50 | Toronto, ON, Canada | 11-50 | Exact match | 30 contacts → |
“SBLR LLP is a rapidly evolving mid-sized accounting and tax firm that focuses on delivering top service to the small and medium-size entrepreneurial business owner.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Westmark TAXwestmarktax.comHQ: Vancouver, BC, CanadaReported employees: 11-50 | Vancouver, BC, Canada | 11-50 | Exact match | 25 contacts → |
“Our firm was founded to provide quality cross-border tax services based on the following 4 key principles: Effective tax planning We try to provide value for our fees whether we…” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Clarke Starke & Diegel LLPcsd.cpaHQ: Waterloo, ON, CanadaReported employees: 11-50 | Waterloo, ON, Canada | 11-50 | Exact match | 24 contacts → |
“At Clarke Starke & Diegel LLP, we have been working with organizations and individuals – and helping them – since 1972.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Kaushal & Co. CPAkaushal.caHQ: New Westminster, BC, CanadaReported employees: 11-50 | New Westminster, BC, Canada | 11-50 | Exact match | 21 contacts → |
“Kaushal & Co.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 527 company matches
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Oil and gas tax firms: dataset insights
November 4, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
513 records in the displayed employee bands.
14 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 527 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 4, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Oil and gas tax firms by metro
Questions about this company list
What does Exact match mean for oil and gas tax firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many oil and gas tax firms did RevenueBase find based in Canada?
The saved snapshot records 527 matching company records, 4,376 tracked contacts and 1,729 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 4, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Oil and gas tax firms by geography
- Oil and gas tax firms based in Melbourne, Australia
- Oil and gas tax firms based in Sydney, Australia
- Oil and gas tax firms based in Vienna, Austria
- Oil and gas tax firms based in Belo Horizonte, Brazil
- Oil and gas tax firms based in Curitiba, Brazil
- Oil and gas tax firms based in Porto Alegre, Brazil
- Oil and gas tax firms based in Rio De Janeiro, Brazil
- Oil and gas tax firms based in Sao Paulo, Brazil
- Oil and gas tax firms based in Calgary, Canada
- Oil and gas tax firms based in Mississauga, Canada
- Oil and gas tax firms based in Toronto, Canada
- Oil and gas tax firms based in Paris, France
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 oil and gas tax firms based in Canada. Snapshot: November 4, 2026. https://revenuebase.ai/companies/oil-and-gas-tax-firms/canada.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Oil and gas tax firms based in Melbourne, Australia
- Oil and gas tax firms based in Sydney, Australia
- Oil and gas tax firms based in Vienna, Austria
- Oil and gas tax firms based in Belo Horizonte, Brazil
- Oil and gas tax firms based in Curitiba, Brazil
- Oil and gas tax firms based in Porto Alegre, Brazil
Company intelligence · public preview
Top 25 oil and gas tax firms based in Canada
RevenueBase records 527 matching company records for oil and gas tax firms based in Canada, with 4,376 tracked contacts and 1,729 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 4, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 oil and gas tax firms based in Canada
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | HQ: Calgary, ON, CanadaReported employees: 201-500 | Calgary, ON, Canada | 201-500 | Exact match | 270 contacts → |
“For more than 70 years, our focus has always been to bring financial peace of mind to our Canadian business owners.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | BVAbvacpa.ca HQ: Sainte-marie, QC, CanadaReported employees: 201-500 | Sainte-marie, QC, Canada | 201-500 | Exact match | 182 contacts → |
“Depuis maintenant plus de 60 ans, BVA a développé une panoplie de services axés sur les préoccupations des entrepreneurs, des professionnels et des dirigeants d’entreprises.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Zeifmanszeifmans.ca HQ: Toronto, ON, CanadaReported employees: 51-200 | Toronto, ON, Canada | 51-200 | Exact match | 180 contacts → |
“Zeifmans is a full-service tax, accounting and consulting firm based in Toronto, Canada.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Thorsteinssons TAX Lawyersthor.ca HQ: Vancouver, ON, CanadaReported employees: 51-200 | Vancouver, ON, Canada | 51-200 | Exact match | 116 contacts → |
“Thorsteinssons is the largest Canadian law firm practicing exclusively in Tax.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Marcil Lavalléemarcil-lavallee.ca HQ: Ottawa, ON, CanadaReported employees: 51-200 | Ottawa, ON, Canada | 51-200 | Exact match | 105 contacts → |
“Marcil Lavallée est un partenaire engagé qui contribue activement à la réussite de ses clients en anticipant leurs besoins et en leur offrant une gamme complète de solutions…” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Invictus Accounting Group LLPinvictusaccounting.com HQ: Vancouver, BC, CanadaReported employees: 51-200 | Vancouver, BC, Canada | 51-200 | Exact match | 100 contacts → |
“Located in the heart of Downtown Vancouver, Invictus Accounting Group LLP provides consulting, accounting and tax advisory for publicly listed and privately held companies.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Ggfl LLPggfl.ca HQ: Ottawa, ON, CanadaReported employees: 51-200 | Ottawa, ON, Canada | 51-200 | Exact match | 97 contacts → |
“GGFL is the tax planning and accounting firm for Ottawa’s successful business people.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Calgary, AB, CanadaReported employees: 51-200 | Calgary, AB, Canada | 51-200 | Exact match | 77 contacts → |
“At KMSS we strive to provide an extraordinary experience.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | S C Partnersscpllp.com HQ: Mississauga, ON, CanadaReported employees: 51-200 | Mississauga, ON, Canada | 51-200 | Exact match | 76 contacts → |
“S+C Partners has been providing professional accounting, advisory and tax services across the GTA since 1987.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Baker Tilly Ottawa LLPbakertilly.ca HQ: Ottawa, ON, CanadaReported employees: 51-200 | Ottawa, ON, Canada | 51-200 | Exact match | 76 contacts → |
“At Baker Tilly Ottawa LLP, we provide expert tax, assurance, and entrepreneurial services to help your business grow and prosper.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HQ: Toronto, ON, CanadaReported employees: 51-200 | Toronto, ON, Canada | 51-200 | Exact match | 69 contacts → |
“SRJ Chartered Accountants is a cloud based Canadian full-service tax and accounting firm located in the heart of downtown Toronto, Mississauga and Oakville.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Cfla S.E.N.C.R.L. LLPcfla-intl.com HQ: Brossard, QC, CanadaReported employees: 51-200 | Brossard, QC, Canada | 51-200 | Exact match | 61 contacts → |
“Services * Expansion américaine et/ou internationale;* Conformité fiscale américaine (corporative);* Conformité fiscale américaine (individu);* « Snowbirds » et immobilier…” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Horizon Chartered Professional Accountantshorizoncpa.ca HQ: Vancouver, CanadaReported employees: 11-50 | Vancouver, Canada | 11-50 | Exact match | 56 contacts → |
“At Horizon Chartered Professional Accountants we know that financial success is achieved by more than careful planning and experienced decision-making: it is realized through a…” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Romanovsky & Associates LLPromanovsky.com HQ: Edmonton & Toronto, CanadaReported employees: 11-50 | Edmonton & Toronto, Canada | 11-50 | Exact match | 55 contacts → |
“At Romanovsky and Associates we are committed to providing high quality services that are needed in today's competitive market place.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Hutcheson & CO CPA LLPhutcheson.ca HQ: Victoria, BC, CanadaReported employees: 11-50 | Victoria, BC, Canada | 11-50 | Exact match | 51 contacts → |
“Since 1987, Hutcheson & Co.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Farnham Accountants & Advisorsfarnhamco.ca HQ: Mississauga, ON, CanadaReported employees: 11-50 | Mississauga, ON, Canada | 11-50 | Exact match | 45 contacts → |
“Welcome to Farnham.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Teed Saunders Doyleteedsaundersdoyle.com HQ: Fredericton, NB, CanadaReported employees: 11-50 | Fredericton, NB, Canada | 11-50 | Exact match | 44 contacts → |
“Teed Saunders Doyle are your local partners in accounting, taxation and business advisory services.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Cadesky TAXcadesky.com HQ: Toronto, ON, CanadaReported employees: 11-50 | Toronto, ON, Canada | 11-50 | Exact match | 41 contacts → |
“Cadesky Tax is an independent tax consulting firm.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Rosen & Associates TAX LAWrosentaxlaw.com HQ: Toronto, ON, CanadaReported employees: 11-50 | Toronto, ON, Canada | 11-50 | Exact match | 39 contacts → |
“Rosen & Associates Tax Law (“R&A Tax Law) is a national tax law firm based in Toronto, Ontario.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Diversico, Experts-Conseilsdiversico.ca HQ: Brossard, QC, CanadaReported employees: 51-200 | Brossard, QC, Canada | 51-200 | Exact match | 32 contacts → |
“Planification fiscale, financière et successorale” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Powell Jones LLPpowelljones.ca HQ: Barrie, ON, CanadaReported employees: 11-50 | Barrie, ON, Canada | 11-50 | Exact match | 31 contacts → |
“Founded in 1952, Powell Jones LLP is an independent locally based accounting firm that has been serving individuals and businesses throughout Barrie and Simcoe County for over 65…” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HQ: Toronto, ON, CanadaReported employees: 11-50 | Toronto, ON, Canada | 11-50 | Exact match | 30 contacts → |
“SBLR LLP is a rapidly evolving mid-sized accounting and tax firm that focuses on delivering top service to the small and medium-size entrepreneurial business owner.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Westmark TAXwestmarktax.com HQ: Vancouver, BC, CanadaReported employees: 11-50 | Vancouver, BC, Canada | 11-50 | Exact match | 25 contacts → |
“Our firm was founded to provide quality cross-border tax services based on the following 4 key principles: Effective tax planning We try to provide value for our fees whether we…” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Clarke Starke & Diegel LLPcsd.cpa HQ: Waterloo, ON, CanadaReported employees: 11-50 | Waterloo, ON, Canada | 11-50 | Exact match | 24 contacts → |
“At Clarke Starke & Diegel LLP, we have been working with organizations and individuals – and helping them – since 1972.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Kaushal & Co. CPAkaushal.ca HQ: New Westminster, BC, CanadaReported employees: 11-50 | New Westminster, BC, Canada | 11-50 | Exact match | 21 contacts → |
“Kaushal & Co.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 527 company matches
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Oil and gas tax firms: dataset insights
November 4, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
513 records in the displayed employee bands.
14 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 527 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 4, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Oil and gas tax firms by metro
Questions about this company list
What does Exact match mean for oil and gas tax firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many oil and gas tax firms did RevenueBase find based in Canada?
The saved snapshot records 527 matching company records, 4,376 tracked contacts and 1,729 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 4, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 oil and gas tax firms based in Canada. Snapshot: November 4, 2026. https://revenuebase.ai/companies/oil-and-gas-tax-firms/canada.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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