Company lists · Data refreshed November 2026
Top 8 Oil and gas engineering firms based in Kolkata, India
RevenueBase identified 45 company matches for oil and gas engineering firms associated with Kolkata, India as of November 2026 and tracks 1,744 professional contacts across them, including 116 with verified work emails. Across India, Mumbai is the largest hub for this category (164 companies); Kolkata has 45.
This list covers company matches for oil and gas engineering firms associated with Kolkata, India, 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 8 largest oil and gas engineering firms based in Kolkata, India
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 941 contacts → | ||||
Exact match “M.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 2 | 53 contacts → | ||||
Exact match “The Mining & Engineering Corporation is a Kolkata based young and dynamic Project Company, having PAN India operations along with an experience of 20 years.Having specialisation…” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 3 | 43 contacts → | ||||
Exact match “Trishul Engineering Solutions (TES) is a leading technical support solutions provider to the global engineering and construction industry.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 4 | 25 contacts → | ||||
Exact match “Civil Infrastructure” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 5 | 25 contacts → | ||||
Exact match “Structive Engineering is a collection of leaders and professionals in Structural/Mechanical/Electrical/Process/Piping engineering fields from Material handling Industry…” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 6 | 19 contacts → | ||||
Exact match “ASTER CONSULTANCY, established in April 2013 under the leadership of SAIKAT GHOSH, works in various EPC projects in detail design engineering with leading construction companies.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 7 | 16 contacts → | ||||
Exact match “We are pleased to inform you that we, Intra Project Consultants, are the front runner for state-of-art technology products & systems from the range of leading multinational…” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 8 | 8 contacts → | ||||
Exact match “An Engineering Company in the Design, Engineering, Supply, Erection, and commissioning of Instrumentation, Electrical & Automation Systems.” 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 engineering 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 8 of 45 oil and gas engineering firms based in Kolkata, India
See the full list, filter by size, metro and specialty, and access 116 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Oil and gas engineering firms based in Kolkata, India at a glance
As of Nov 4, 2026Companies by employee count
Email recency for this list is measured across the whole India list rather than for Kolkata, so it is reported there. Company counts and contact totals on this page are exact for Kolkata, over 45 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 Kolkata, India whose business descriptions match “oil and gas engineering 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 116 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 engineering firms by metro in India
- Oil and gas engineering firms in Mumbai164
- Oil and gas engineering firms in Chennai162
- Oil and gas engineering firms in Pune145
- Oil and gas engineering firms in Bangalore92
- Oil and gas engineering firms in Vadodara92
- Oil and gas engineering firms in Hyderabad89
- Oil and gas engineering firms in Ahmedabad80
- Oil and gas engineering firms in Navi Mumbai64
- Oil and gas engineering firms in Noida56
- Oil and gas engineering firms in Thane51
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 engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many oil and gas engineering firms are there based in Kolkata, India?
RevenueBase identified 45 company matches for oil and gas engineering firms associated with Kolkata, India 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?
M. N. Dastur & Co. P LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city in India has the most oil and gas engineering firms?
Mumbai leads India with 164 company records, followed by Chennai (162) and Pune (145). Kolkata has 45.
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 116 professional contacts with verified work emails tracked across these 45 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 45 oil and gas engineering firms based in Kolkata, India. Start with a free account, no credit card.
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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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Company intelligence · public preview
Top 8 oil and gas engineering firms based in Kolkata, India
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 45 matching company records for oil and gas engineering firms based in Kolkata, India, with 1,744 tracked contacts and 116 verified work emails.
This public preview shows 8 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 8 oil and gas engineering firms based in Kolkata, India
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 |  M. N. Dastur & Co. P LTDdastur.comHQ: Kolkata, IndiaReported employees: 1,001-5,000 | Kolkata, India | 1,001-5,000 | Exact match | 941 contacts → |
“M.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | The Mining & Engineering Corporationddgroup.net.in HQ: Kolkata, IndiaReported employees: 501-1,000 | Kolkata, India | 501-1,000 | Exact match | 53 contacts → |
“The Mining & Engineering Corporation is a Kolkata based young and dynamic Project Company, having PAN India operations along with an experience of 20 years.Having specialisation…” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Trishul Engineering Solutions P LTDtrishulsolutions.com HQ: Kolkata, IndiaReported employees: 11-50 | Kolkata, India | 11-50 | Exact match | 43 contacts → |
“Trishul Engineering Solutions (TES) is a leading technical support solutions provider to the global engineering and construction industry.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | SUI Generis Infratech LLPsuigenerisinfratech.com HQ: Kolkata, IndiaReported employees: 51-200 | Kolkata, India | 51-200 | Exact match | 25 contacts → |
“Civil Infrastructure” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Structive Engineering & Consultancy Services LLPstructive.inHQ: Kolkata, IndiaReported employees: 11-50 | Kolkata, India | 11-50 | Exact match | 25 contacts → |
“Structive Engineering is a collection of leaders and professionals in Structural/Mechanical/Electrical/Process/Piping engineering fields from Material handling Industry…” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Aster Consultancyasterconsultancy.co.inHQ: Kolkata, IndiaReported employees: 11-50 | Kolkata, India | 11-50 | Exact match | 19 contacts → |
“ASTER CONSULTANCY, established in April 2013 under the leadership of SAIKAT GHOSH, works in various EPC projects in detail design engineering with leading construction companies.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Intra Project Consultantsintraproject.net HQ: Kolkata, IndiaReported employees: 11-50 | Kolkata, India | 11-50 | Exact match | 16 contacts → |
“We are pleased to inform you that we, Intra Project Consultants, are the front runner for state-of-art technology products & systems from the range of leading multinational…” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Cyrus Automation India Limitedincyrus.comHQ: Kolkata, IndiaReported employees: 11-50 | Kolkata, India | 11-50 | Exact match | 8 contacts → |
“An Engineering Company in the Design, Engineering, Supply, Erection, and commissioning of Instrumentation, Electrical & Automation Systems.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 8 of 45 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Oil and gas engineering 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
44 records in the displayed employee bands.
1 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 across the whole India list rather than for Kolkata, so it is reported there. Company counts and contact totals on this page are exact for Kolkata, over 45 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 engineering firms by metro in India
- Oil and gas engineering firms in Mumbai164
- Oil and gas engineering firms in Chennai162
- Oil and gas engineering firms in Pune145
- Oil and gas engineering firms in Bangalore92
- Oil and gas engineering firms in Vadodara92
- Oil and gas engineering firms in Hyderabad89
- Oil and gas engineering firms in Ahmedabad80
- Oil and gas engineering firms in Navi Mumbai64
- Oil and gas engineering firms in Noida56
- Oil and gas engineering firms in Thane51
Questions about this company list
What does Exact match mean for oil and gas engineering 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 engineering firms did RevenueBase find based in Kolkata, India?
The saved snapshot records 45 matching company records, 1,744 tracked contacts and 116 verified emails. The public preview displays 8 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 engineering firms by geography
- Oil and gas engineering firms based in Luanda, Angola
- Oil and gas engineering firms based in Buenos Aires, Argentina
- Oil and gas engineering firms based in Brisbane, Australia
- Oil and gas engineering firms based in Melbourne, Australia
- Oil and gas engineering firms based in Perth, Australia
- Oil and gas engineering firms based in Sydney, Australia
- Oil and gas engineering firms based in Baku, Azerbaijan
- Oil and gas engineering firms based in Belo Horizonte, Brazil
- Oil and gas engineering firms based in Campinas, Brazil
- Oil and gas engineering firms based in Curitiba, Brazil
- Oil and gas engineering firms based in Porto Alegre, Brazil
- Oil and gas engineering firms based in Recife, Brazil
Cite this list
RevenueBase Data Team. Top 8 oil and gas engineering firms based in Kolkata, India. Snapshot: November 4, 2026. https://revenuebase.ai/companies/oil-and-gas-engineering-firms/india/kolkata.
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 engineering firms based in Luanda, Angola
- Oil and gas engineering firms based in Buenos Aires, Argentina
- Oil and gas engineering firms based in Brisbane, Australia
- Oil and gas engineering firms based in Melbourne, Australia
- Oil and gas engineering firms based in Perth, Australia
- Oil and gas engineering firms based in Sydney, Australia
Company intelligence · public preview
Top 8 oil and gas engineering firms based in Kolkata, India
RevenueBase records 45 matching company records for oil and gas engineering firms based in Kolkata, India, with 1,744 tracked contacts and 116 verified work emails.
This public preview shows 8 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 8 oil and gas engineering firms based in Kolkata, India
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 | M. N. Dastur & Co. P LTDdastur.com HQ: Kolkata, IndiaReported employees: 1,001-5,000 | Kolkata, India | 1,001-5,000 | Exact match | 941 contacts → |
“M.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | The Mining & Engineering Corporationddgroup.net.in HQ: Kolkata, IndiaReported employees: 501-1,000 | Kolkata, India | 501-1,000 | Exact match | 53 contacts → |
“The Mining & Engineering Corporation is a Kolkata based young and dynamic Project Company, having PAN India operations along with an experience of 20 years.Having specialisation…” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Trishul Engineering Solutions P LTDtrishulsolutions.com HQ: Kolkata, IndiaReported employees: 11-50 | Kolkata, India | 11-50 | Exact match | 43 contacts → |
“Trishul Engineering Solutions (TES) is a leading technical support solutions provider to the global engineering and construction industry.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | SUI Generis Infratech LLPsuigenerisinfratech.com HQ: Kolkata, IndiaReported employees: 51-200 | Kolkata, India | 51-200 | Exact match | 25 contacts → |
“Civil Infrastructure” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Structive Engineering & Consultancy Services LLPstructive.in HQ: Kolkata, IndiaReported employees: 11-50 | Kolkata, India | 11-50 | Exact match | 25 contacts → |
“Structive Engineering is a collection of leaders and professionals in Structural/Mechanical/Electrical/Process/Piping engineering fields from Material handling Industry…” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Aster Consultancyasterconsultancy.co.in HQ: Kolkata, IndiaReported employees: 11-50 | Kolkata, India | 11-50 | Exact match | 19 contacts → |
“ASTER CONSULTANCY, established in April 2013 under the leadership of SAIKAT GHOSH, works in various EPC projects in detail design engineering with leading construction companies.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Intra Project Consultantsintraproject.net HQ: Kolkata, IndiaReported employees: 11-50 | Kolkata, India | 11-50 | Exact match | 16 contacts → |
“We are pleased to inform you that we, Intra Project Consultants, are the front runner for state-of-art technology products & systems from the range of leading multinational…” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Cyrus Automation India Limitedincyrus.com HQ: Kolkata, IndiaReported employees: 11-50 | Kolkata, India | 11-50 | Exact match | 8 contacts → |
“An Engineering Company in the Design, Engineering, Supply, Erection, and commissioning of Instrumentation, Electrical & Automation Systems.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 8 of 45 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Oil and gas engineering 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
44 records in the displayed employee bands.
1 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 across the whole India list rather than for Kolkata, so it is reported there. Company counts and contact totals on this page are exact for Kolkata, over 45 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 engineering firms by metro in India
- Oil and gas engineering firms in Mumbai164
- Oil and gas engineering firms in Chennai162
- Oil and gas engineering firms in Pune145
- Oil and gas engineering firms in Bangalore92
- Oil and gas engineering firms in Vadodara92
- Oil and gas engineering firms in Hyderabad89
- Oil and gas engineering firms in Ahmedabad80
- Oil and gas engineering firms in Navi Mumbai64
- Oil and gas engineering firms in Noida56
- Oil and gas engineering firms in Thane51
Questions about this company list
What does Exact match mean for oil and gas engineering 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 engineering firms did RevenueBase find based in Kolkata, India?
The saved snapshot records 45 matching company records, 1,744 tracked contacts and 116 verified emails. The public preview displays 8 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 engineering firms by geography
- Oil and gas engineering firms based in Luanda, Angola
- Oil and gas engineering firms based in Buenos Aires, Argentina
- Oil and gas engineering firms based in Brisbane, Australia
- Oil and gas engineering firms based in Melbourne, Australia
- Oil and gas engineering firms based in Perth, Australia
- Oil and gas engineering firms based in Sydney, Australia
- Oil and gas engineering firms based in Baku, Azerbaijan
- Oil and gas engineering firms based in Belo Horizonte, Brazil
- Oil and gas engineering firms based in Campinas, Brazil
- Oil and gas engineering firms based in Curitiba, Brazil
- Oil and gas engineering firms based in Porto Alegre, Brazil
- Oil and gas engineering firms based in Recife, Brazil
Cite this list
RevenueBase Data Team. Top 8 oil and gas engineering firms based in Kolkata, India. Snapshot: November 4, 2026. https://revenuebase.ai/companies/oil-and-gas-engineering-firms/india/kolkata.
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 engineering firms based in Luanda, Angola
- Oil and gas engineering firms based in Buenos Aires, Argentina
- Oil and gas engineering firms based in Brisbane, Australia
- Oil and gas engineering firms based in Melbourne, Australia
- Oil and gas engineering firms based in Perth, Australia
- Oil and gas engineering firms based in Sydney, Australia