Company lists · Data refreshed September 2026

Top 23 Offshore platform maintenance services based in India

Name: Offshore platform maintenance services based in India
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 337 companies tracked

RevenueBase identified 337 offshore platform maintenance services headquartered in India as of September 2026 and tracks 16,717 professional contacts across them, including 1,052 with verified work emails. Mumbai is the largest hub.

This list covers offshore platform maintenance services headquartered in India, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review

337Companies

16,717Contacts tracked

1,052Verified emails

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The 23 largest offshore platform maintenance services based in India

Ranked by team size

Top 23 of 337 offshore platform maintenance services based in India, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to offshore platform maintenance services: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	OCS Services	Partial evidence	Mumbai, IndiaHQ checked Sep 29, 2026	1,001-5,000	905 contacts →
	Partial evidence “The organization is a joint venture between Planet Energy and BW Offshore - one of the world's largest Floating Production System Provider, listed on the Oslo stock exchange.” Source: RevenueBase Database · checked Sep 29, 2026
2	Npcc Engineering Pvt. Limited	Indirect evidence	Mumbai, IndiaHQ checked Sep 29, 2026	501-1,000	707 contacts →
	Indirect evidence “NPCC Engineering Pvt.” Source: RevenueBase Database · checked Sep 29, 2026
3	Greatship	Partial evidence	Mumbai, IndiaHQ checked Sep 29, 2026	1,001-5,000	681 contacts →
	Partial evidence “The GREATSHIP GROUP is a provider of quality offshore oilfield services, owning and operating a comprehensive range of new generation, technologically advanced vessels and modern…” Source: RevenueBase Database · checked Sep 29, 2026
4	Kavin Engineering And Services	Indirect evidence	Coimbatore, IndiaHQ checked Sep 29, 2026	501-1,000	536 contacts →
	Indirect evidence “Kavin Engineering And Services Private Limited are leaders in Engineering & Services.” Source: RevenueBase Database · checked Sep 29, 2026
5	Rotostat Services Pvt. LTD	Indirect evidence	Mumbai, IndiaHQ checked Sep 29, 2026	1,001-5,000	524 contacts →
	Indirect evidence “Rotostat Services Pvt.” Source: RevenueBase Database · checked Sep 29, 2026
6	Sanmarg Projects, India	Partial evidence	Noida, IndiaHQ checked Sep 29, 2026	501-1,000	506 contacts →
	Partial evidence “SANMARG" provides Knowledge based Managed Engineering Solutions with a special focus on Integrated Operations & Maintenance, PMC (Project Management & Consultancy) and Specialized…” Source: RevenueBase Database · checked Sep 29, 2026
7	Sidvin Energy Engineering	Indirect evidence	Bangalore, IndiaHQ checked Sep 29, 2026	201-500	441 contacts →
	Indirect evidence “SIDVIN, a customer focused Engineering Service provider for Oil & Gas, Petrochemical & Process Industry has been delivering exacting solutions through its innovative, unleashing…” Source: RevenueBase Database · checked Sep 29, 2026
8	Coastal Marine Construction & Engineering LTD	Indirect evidence	Mira Bhayander, IndiaHQ checked Sep 29, 2026	201-500	403 contacts →
	Indirect evidence “COMACOE - Coastal Marine Construction & Engineering Ltd is an experienced marine services contractor with operations in multiple geographies offering a range of service over the…” Source: RevenueBase Database · checked Sep 29, 2026
9	DAS Offshore Limited	Partial evidence	Navi Mumbai, IndiaHQ checked Sep 29, 2026	1,001-5,000	287 contacts →
	Partial evidence “Established in 1987, DAS Offshore Limited is a trusted engineering, fabrication, and contracting company with a strong legacy in delivering offshore and infrastructure solutions.” Source: RevenueBase Database · checked Sep 29, 2026
10	Dynamic Drilling & Services	Partial evidence	New Delhi, IndiaHQ checked Sep 29, 2026	201-500	206 contacts →
	Partial evidence “Dynamic Drilling, is an Indian Offshore Oil and Gas Drilling Company incorporated under the Indian Companies act 1956 with an objective to carry out business in the field of…” Source: RevenueBase Database · checked Sep 29, 2026
11	Hind Offshore Private Limited	Indirect evidence	Mumbai, IndiaHQ checked Sep 29, 2026	51-200	193 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
12	Nicco Engineering Services Limited	Partial evidence	Kolkata, IndiaHQ checked Sep 29, 2026	201-500	179 contacts →
	Partial evidence “We are a trusted provider of Speciality Maintenance Services for Industry.” Source: RevenueBase Database · checked Sep 29, 2026
13	Adsun Offshore	Partial evidence	Mumbai, IndiaHQ checked Sep 29, 2026	201-500	134 contacts →
	Partial evidence “Adsun is a One Stop Offshore Solutions company providing Subsea Diving Services ( BPI- I MR- Construction-installation), Turnkey Single Point Mooring (SPM) Solutions & Marine…” Source: RevenueBase Database · checked Sep 29, 2026
14	Seamec Limited	Partial evidence	Mumbai, IndiaHQ checked Sep 29, 2026	201-500	117 contacts →
	Partial evidence “We are India’s largest offshore oileld services facilitator.” Source: RevenueBase Database · checked Sep 29, 2026
15	Anchor Offshore Services LTD	Partial evidence	Mumbai, IndiaHQ checked Sep 29, 2026	201-500	113 contacts →
	Partial evidence “Anchor Offshore provides expertise in Engineering Projects which involves Detailed Design Engineering, Supply, Installation and Commissioning of equipment used onboard critical…” Source: RevenueBase Database · checked Sep 29, 2026
16	Oval Projects Engineering Limited	Indirect evidence	Agartala, IndiaHQ checked Sep 29, 2026	501-1,000	84 contacts →
	Indirect evidence “M/s OVAL Projects Engineering Limited is one of the most reputed and fastest growing industrial infrastructure development companies from North-East India who expertise in all…” Source: RevenueBase Database · checked Sep 29, 2026
17	Specialty Products And Services India LLP	Indirect evidence	Jamshedpur, IndiaHQ checked Sep 29, 2026	1,001-5,000	83 contacts →
	Indirect evidence “Specialty Products and Services (SPS): Revolutionising Heavy Industries with Innovative Solutions Welcome to Specialty Products and Services (SPS), a leading technological company…” Source: RevenueBase Database · checked Sep 29, 2026
18	South Asia Consultancy	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 29, 2026	11-50	77 contacts →
	Indirect evidence “South Asia Consultancy is an ISO 9001 certified company with headquarter in Ahmedabad, Gujarat, providing oilfield services.SAC was established in 2014 by its sole proprietor Mr.” Source: RevenueBase Database · checked Sep 29, 2026
19	S & O Maritime Services	Indirect evidence	Ernakulam, IndiaHQ checked Sep 29, 2026	11-50	49 contacts →
	Indirect evidence “S&O Maritime Services is an engineering, project management and consultancy company in the field of marine and oil & gas industry.” Source: RevenueBase Database · checked Sep 29, 2026
20	Portech Engineering Pvt. LTD	Partial evidence	Navi Mumbai, IndiaHQ checked Sep 29, 2026	51-200	43 contacts →
	Partial evidence “A multi-disciplinary company, with activities like Maintenance, Service, Repair, Modification, Erection, Commissioning, Inspection, Fabrication, Machining, Spare Parts sales…” Source: RevenueBase Database · checked Sep 29, 2026
21	Sadhav Group	Strong evidence	Mumbai, IndiaHQ checked Sep 29, 2026	1,001-5,000	38 contacts →
	Strong evidence “Sadhav was founded in 1992 to carry out operations, maintenance & repairs (O&M, MRO) on board ships and offshore structures with the ultimate purpose of owning and operating ships.” Source: RevenueBase Database · checked Sep 29, 2026
22	JAY Gauri Projects India Pvt. LTD	Indirect evidence	Jaipur, IndiaHQ checked Sep 29, 2026	201-500	36 contacts →
	Indirect evidence “We at Jay Gauri Projects (I) Private Limited & Amita Projects Group of Companies provide knowledge-based managed engineering, technical, and design services for the energy sector.” Source: RevenueBase Database · checked Sep 29, 2026
23	Ajashy Engineering Sales Pvt. LTD	Strong evidence	Gurugram, IndiaHQ checked Sep 29, 2026	51-200	35 contacts →
	Strong evidence “We are manufacturers of highly reliable, low maintenance and dependable equipment and service providers for Oil and Gas, Offshore, Road, Infrastructure, Construction, Mining and…” Source: RevenueBase Database · checked Sep 29, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: offshore platform maintenance services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names offshore platform maintenance services.
Partial evidence: Its own public description names part of offshore platform maintenance services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name offshore platform maintenance services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 23 of 337 offshore platform maintenance services based in India

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Offshore platform maintenance services based in India at a glance

As of Sep 29, 2026

6.3%Verified-email coverage

49.6Average contacts per company

11-50Median size (employees)

23.4%Largest-city concentration · Mumbai

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

111

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured worldwide rather than for India, so it is reported there. Company counts and contact totals on this page are exact for India, over 337 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among offshore platform maintenance services, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in India whose own description of what they do matches “offshore platform maintenance services”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names offshore platform maintenance services), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among offshore platform maintenance services, and records with no verified work email. Companies headquartered outside India are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 1,052 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Offshore platform maintenance services by metro

Offshore platform maintenance services in Mumbai79

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names offshore platform maintenance services, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many offshore platform maintenance services are there based in India?

RevenueBase identified 337 offshore platform maintenance services headquartered in India as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

OCS Services, headquartered in Mumbai, tops this list with the largest team on record.

Which city has the most offshore platform maintenance services?

Mumbai leads with 79 headquartered companies, followed by Navi Mumbai (26) and Chennai (19).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,052 verified decision-maker contacts tracked across these 337 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 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 Smart Search, 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.