Company lists · Data refreshed September 2026

Top 25 Refinery engineering firms based in Chennai, India

Name: Refinery engineering firms based in Chennai, India
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 114 companies tracked

RevenueBase identified 114 company matches for refinery engineering firms associated with Chennai, India as of September 2026 and tracks 5,069 professional contacts across them, including 392 with verified work emails. Across India, Pune is the largest hub for this category (170 companies); Chennai has 114.

This list covers company matches for refinery engineering firms associated with Chennai, 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 September 17, 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 Sep 17, 2026 How this list was built

114Companies

5,069Contacts tracked

392Verified emails

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The 25 largest refinery engineering firms based in Chennai, India

Ranked by team size

Top 25 of 114 company matches for refinery engineering firms based in Chennai, India, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Chennai Petroleum Corp. LTD Indian OIL	Exact match	Chennai, IndiaHQ recorded Sep 17, 2026	1,001-5,000	1,194 contacts →
	Exact match “Chennai Petroleum Corporation Limited (CPCL) is a subsidiary of IOCL with world class refining technologies and a dominant presence in South India.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Gulf Asia Engineering And Projects Private Limited	Exact match	Chennai, IndiaHQ recorded Sep 17, 2026	n/a	1,022 contacts →
	Exact match “Gulf Asia Engineering and Projects Private Limited(GAEP), subsidiary of RP Group, Bahrain, is a leading engineering and construction company.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Texcel Engineers PVT LTD	Exact match	Chennai, IndiaHQ recorded Sep 17, 2026	201-500	202 contacts →
	Exact match “Texcel Engineers – the name is synonym for Technical Excellence.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Solidpro Group	Exact match	Chennai, IndiaHQ recorded Sep 17, 2026	51-200	183 contacts →
	Exact match “At SolidPro we see engineering as beyond a service.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Ifluids Engineering	Exact match	Chennai, IndiaHQ recorded Sep 17, 2026	51-200	180 contacts →
	Exact match “iFluids Engineering, an ISO 9001:2015 certified company provides specialized services predominantly for Oil & Gas, Petro-chemical and also other industrial sectors.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Shimi Designs And Consulting Engineers PVT LTD	Exact match	Chennai, IndiaHQ recorded Sep 17, 2026	51-200	137 contacts →
	Exact match “SHIMI Designs and Consulting Engineers Private Limited is one of the growing engineering design companies having good reputation since 1989.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Besten Engineers And Consultants India PVT LTD	Exact match	Chennai, IndiaHQ recorded Sep 17, 2026	51-200	107 contacts →
	Exact match “We are engineers, designers, planners providing design, detailed engineering and, procurement support to the industrial sector.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Sedin Engineering	Exact match	Chennai, IndiaHQ recorded Sep 17, 2026	51-200	94 contacts →
	Exact match “We are engineering design specialists.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Sloan Global	Exact match	Chennai, IndiaHQ recorded Sep 17, 2026	201-500	75 contacts →
	Exact match “Sloan Global, Inc was founded on the principles of honesty, integrity, and safety.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Epcogen Private Limited	Exact match	Chennai, IndiaHQ recorded Sep 17, 2026	51-200	66 contacts →
	Exact match “EPCOGEN Pvt Ltd is an Engineering Service Company, performing Pre-Bid Engineering, FEED & Detailed Engineering, primarily for the Oil & Gas, Refineries, Petrochemicals and Power…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Vaap Energy Pvt.Ltd	Exact match	Chennai, IndiaHQ recorded Sep 17, 2026	51-200	59 contacts →
	Exact match “VAAP ENERGY PVT.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Petronash Engineering Services	Exact match	Chennai, IndiaHQ recorded Sep 17, 2026	201-500	52 contacts →
	Exact match “We are a multidisciplinary engineering company providing comprehensive design and engineering services across our offices in Dubai, Dammam, and Qatar.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Effixon Engineering PVT LTD	Exact match	Chennai, IndiaHQ recorded Sep 17, 2026	51-200	51 contacts →
	Exact match “Effixon Engineering Pvt Ltd is an eminent engineering solution provider endeavours to provide best in class Design and Detail engineering solutions to clients across Mining,Bulk…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Oiltech Engineering LTD	Exact match	Chennai, IndiaHQ recorded Sep 17, 2026	51-200	48 contacts →
	Exact match “Oiltech is engaged in design, engineering and project management services for the Oil & Gas, Energy, Process & Petrochemical, Water and Effluent Treatment and Waste to Value…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Chemsys Innovative Solutions	Exact match	Chennai, IndiaHQ recorded Sep 17, 2026	11-50	46 contacts →
	Exact match “Chemsis was established by a team of Professional Engineers & is the abbreviated form of Chemical Process Systems.We undertake Process Plant Engineering & Design, Procurement &…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Accuspeed Engineering Services India Private Limited	Exact match	Chennai, IndiaHQ recorded Sep 17, 2026	51-200	35 contacts →
	Exact match “Accuspeed Engineering Services India Limited offers cost effective engineering solutions and services covering Design, Detailed Engineering, Supply, erection, installation and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	EL Shaddai Engineering P LTD	Exact match	Chennai, IndiaHQ recorded Sep 17, 2026	201-500	31 contacts →
	Exact match “El Shaddai was founded in year 2009 to quench the burgeoning global demand of qualified manpower in the diverse sectors of the Oil & Gas industries.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Agile PMC PVT LTD	Exact match	Chennai, IndiaHQ recorded Sep 17, 2026	51-200	29 contacts →
	Exact match “Empowering Projects Worldwide: Founded in 2017, we are a professionally managed and employee-owned organization.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Ruastech Engineering	Exact match	Chennai, IndiaHQ recorded Sep 17, 2026	1-10	29 contacts →
	Exact match “RUASTECH is the consultancy firm in the fields of engineering, technical services and innovation.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Procedyne Engineers	Exact match	Chennai, IndiaHQ recorded Sep 17, 2026	11-50	26 contacts →
	Exact match “Procedyne Engineers is a mechanical or industrial engineering company based out of 4, JAYARAM AVENUE, SHASTRI NAGAR, Chennai, Tamil Nadu, India.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Valbrid Engineering & Technologies	Exact match	Chennai, IndiaHQ recorded Sep 17, 2026	11-50	15 contacts →
	Exact match “ValBrid: Innovative Engineering Outsourcing Solutions for Global Industries We empower industries like metals, mining, power, marine, and oil & gas with cutting-edge engineering…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Petrochem Designs	Exact match	Chennai, IndiaHQ recorded Sep 17, 2026	1-10	15 contacts →
	Exact match “Founded on 15 September 2023, Petrochem Designs is an emerging plant engineering and design organization delivering innovative, cost-effective solutions for diverse process…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	SRI Projects	Exact match	Chennai, IndiaHQ recorded Sep 17, 2026	11-50	13 contacts →
	Exact match “Sri Projects is an engineering firm specializing in Plant Layout, Process, and Piping Engineering for Bio Gas Plants and Chemical Plants.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Moss Engineering Private Limited	Exact match	Chennai, IndiaHQ recorded Sep 17, 2026	51-200	11 contacts →
	Exact match “MOSS has established ourselves as a reliable stakeholder to provide the expertise in the field of construction for the oil and gas, petrochemical, process industries, storage…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Alinoz Energy	Exact match	Chennai, IndiaHQ recorded Sep 17, 2026	1-10	10 contacts →
	Exact match “ALINOZ Energy, a consulting firm registered in Doha, Qatar, specialized in the field of Loss Prevention, Technical Safety Engineering, Firefighting system design, Process Safety…” Recorded in the RevenueBase company graph · Sep 17, 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 “refinery 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 25 of 114 refinery engineering firms based in Chennai, India

See the full list, filter by size, metro and specialty, and access 392 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Refinery engineering firms based in Chennai, India at a glance

As of Sep 17, 2026

7.7%Verified-email coverage

44.5Average contacts per company

11-50Median size (employees)

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole India list rather than for Chennai, so it is reported there. Company counts and contact totals on this page are exact for Chennai, over 114 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 Chennai, India whose business descriptions match “refinery 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 392 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 September 17, 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.

Refinery engineering firms by metro in India

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 “refinery engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many refinery engineering firms are there based in Chennai, India?

RevenueBase identified 114 company matches for refinery engineering firms associated with Chennai, India as of September 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?

Chennai Petroleum Corp. LTD Indian OIL tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in India has the most refinery engineering firms?

Pune leads India with 170 company records, followed by Mumbai (145) and Chennai (114).

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 392 professional contacts with verified work emails tracked across these 114 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 September 17, 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.