Company lists · Data refreshed September 2026
Top 25 Prompt engineering consultancies based in Singapore
RevenueBase identified 99 prompt engineering consultancies headquartered in Singapore as of September 2026 and tracks 1,336 professional contacts across them, including 190 with verified work emails. Singapore is the largest hub.
This list covers prompt engineering consultancies headquartered in Singapore, 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.
The 25 largest prompt engineering consultancies based in Singapore
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 144 contacts → | ||||
Indirect evidence “ECAS Consultants Pte Ltd offers a comprehensive suite of services, Design Consultancy, Construction Supervision, Assessment and Inspection, Project Management and Accredited…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 91 contacts → | ||||
Indirect evidence “A leading consulting engineers firm in Singapore provides project management, civil & structural and M&E services for buildings and infrastructures.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 69 contacts → | ||||
Partial evidence “Puretech Engineering Pte Ltd was first known as Puretech Electrical Engineering Services in May 1995.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 64 contacts → | ||||
Partial evidence “Bescon Consulting Engineers Pte is an award-winning Mechanical and Electrical (M&E) Consultancy firm providing Professional Engineering Services for building and infrastructure…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 49 contacts → | ||||
Partial evidence “PAPE Engineering is an independent engineering consultancy and project management company providing marine, offshore, subsea, energy and infrastructure engineering services.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 42 contacts → | ||||
Partial evidence “PH Consulting Pte Ltd is a Civil and Structural engineering company providing professional engineering consultancy services since 2009.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 41 contacts → | ||||
Partial evidence “Since its inception on December 29, 1982, HY has established itself as an indomitable force in Mechanical and Electrical (M&E) Engineering Consultancy, with a remarkable track…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 40 contacts → | ||||
Partial evidence “HNE is a multi-disciplined construction and engineering planning consulting firm servicing a variety of industries and project types.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 37 contacts → | ||||
Strong evidence “IC Singapore Pte Ltd (ICSG) is an Engineering Consultancy services company setup by prominent infrastructure engineers in Singapore providing consultancy services in the Built…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 28 contacts → | ||||
Indirect evidence “OGRE offers a comprehensive suite of business services that drives productivity.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 25 contacts → | ||||
Partial evidence “IGnesis is an established multi-disciplinary engineering consultancy firm in the fields of mechanical & electrical, Fire Safety & Risk Engineering, Environmental Sustainable…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 25 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 24 contacts → | ||||
Indirect evidence “EWC was founded by Er.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 22 contacts → | ||||
Indirect evidence “We started as Squire Beca in 1977, a small partnership between Raglan Squire & Partners and New Zealand-based Beca Carter.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 19 contacts → | ||||
Partial evidence “KK Lim & Associates Pte Ltd is a consulting civil and structural engineering company based in Singapore whose success has been built on innovative ideas and sound expertise.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 18 contacts → | ||||
Indirect evidence “Formerly known as WP Brown and Calibre Consulting, Brown Consulting has been responsible for bringing some of Singapore and the region's most iconic projects to fruition.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 16 contacts → | ||||
Partial evidence “VEngineers Consultancy Pte Ltd is a leading engineering consultancy, founded in Singapore, with design offices in both Singapore and Malaysia.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 14 contacts → | ||||
Partial evidence “CASY Engineering Consultancy Pte Ltd was incorporated in Singapore in 2017.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 14 contacts → | ||||
Partial evidence “C2D Solutions Pte Ltd is a premium holistic solutions provider with strong knowledge and experience in vast fields of engineering.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 11 contacts → | ||||
Partial evidence “NRG Engineering, headquartered in Singapore, offers customised Project Management Consultancy (PMC), Technical Assistance, Safety Engineering & Studies, and Training to the Oil…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 10 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 10 contacts → | ||||
Partial evidence “Oskefer Consulting is a leading scientific and engineering consultancy with the head office located in Singapore.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 9 contacts → | ||||
Partial evidence “Groupe Huit Singapore (formerly known as Keran Asia Services) is an engineering and consultancy firm based in Singapore with a zone of influence spreading throughout Asia that…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 5 contacts → | ||||
Partial evidence “Bosons is a multidisciplinary professional engineering firm providing truly integrated engineering, planning and project management services.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 5 contacts → | ||||
Indirect evidence “Paaras Marine Solutions Pte Ltd brings together a team of committed and passionate individuals with diverse skill sets and over 175 years of collective experience to provide…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
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: prompt engineering consultancies. 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 prompt engineering consultancies.
- Partial evidence
- Its own public description names part of prompt engineering consultancies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name prompt engineering consultancies. 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 25 of 99 prompt engineering consultancies based in Singapore
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Prompt engineering consultancies based in Singapore at a glance
As of Sep 29, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Singapore, so it is reported there. Company counts and contact totals on this page are exact for Singapore, over 99 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 prompt engineering consultancies, 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 Singapore whose own description of what they do matches “prompt engineering consultancies”. 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 prompt engineering consultancies), 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 prompt engineering consultancies, and records with no verified work email. Companies headquartered outside Singapore 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, 190 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.
Prompt engineering consultancies by metro
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 prompt engineering consultancies, 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 prompt engineering consultancies are there based in Singapore?
RevenueBase identified 99 prompt engineering consultancies headquartered in Singapore 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?
Ecas Consultants PTE LTD, headquartered in Singapore, tops this list with the largest team on record.
Which city has the most prompt engineering consultancies?
Singapore leads with 90 headquartered companies, followed by Bugis (1) and Jurong (1).
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 190 verified decision-maker contacts tracked across these 99 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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Prompt engineering consultancies by geography
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- Prompt engineering consultancies based in Belo Horizonte, Brazil
- Prompt engineering consultancies based in Curitiba, Brazil
- Prompt engineering consultancies based in Porto Alegre, Brazil
- Prompt engineering consultancies based in Rio De Janeiro, Brazil
- Prompt engineering consultancies based in Sao Paulo, Brazil
- Prompt engineering consultancies based in Calgary, Canada
- Prompt engineering consultancies based in Toronto, Canada
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.
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