Company lists · Data refreshed September 2026

Top 25 Prompt engineering services companies worldwide

Name: Prompt engineering services companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 4,538 companies tracked

RevenueBase identified 4,538 prompt engineering services companies worldwide as of September 2026 and tracks 77,086 professional contacts across them, including 13,739 with verified work emails and 0 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.

This list covers prompt engineering services companies worldwide, 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 17, 2026. Country and city lists for prompt engineering services companies follow the table.

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 17, 2026 86% judged on-target in blind review

4,538Companies

77,086Contacts tracked

13,739Verified emails

0Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest prompt engineering services companies worldwide

Ranked by team size

Top 25 of 4,538 prompt engineering services companies worldwide, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to prompt engineering services companies: 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	National Engineering Services Pakistan PVT Limited Nespak	Indirect evidence	Lahore, PakistanHQ checked Sep 17, 2026	5,001-10,000	3,266 contacts →
	Indirect evidence “NESPAK is Pakistan’s premier consultancy organization (established in 1973).” Source: RevenueBase Database · checked Sep 17, 2026
2	Aarvi Encon	Partial evidence	Mumbai, IndiaHQ checked Sep 17, 2026	5,001-10,000	1,890 contacts →
	Partial evidence “Aarvi Encon has established it's leadership in providing Engineering Consultancy and Technical Assistance to Oil & Gas, Refinery, Petrochemical, Pipelines, Power & Infrastructure…” Source: RevenueBase Database · checked Sep 17, 2026
3	Bilfinger Engineering	Partial evidence	Schiedam, NetherlandsHQ checked Sep 17, 2026	1,001-5,000	1,535 contacts →
	Partial evidence “Engineering for greenfield plants or modification and modernization projects for brownfield plants: Bilfinger delivers the optimized solution for our customers in terms of…” Source: RevenueBase Database · checked Sep 17, 2026
4	ACE Consulting Engineers Moharram.Bakhoum	Partial evidence	Cairo, EgyptHQ checked Sep 17, 2026	1,001-5,000	899 contacts →
	Partial evidence “ACE Moharam Bakhoum is a privately-owned international multidisciplinary engineering consultancy and project management organization, founded in 1950.” Source: RevenueBase Database · checked Sep 17, 2026
5	Cesel Ingenieros	Indirect evidence	Lima, PeruHQ checked Sep 17, 2026	1,001-5,000	819 contacts →
	Indirect evidence “CESEL es una empresa peruana privada de consultoría en ingeniería, reconocida por su sólida trayectoria y prestigio en el desarrollo exitoso de proyectos multidisciplinarios de…” Source: RevenueBase Database · checked Sep 17, 2026
6	Pares&alvarez	Partial evidence	Santiago, ChileHQ checked Sep 17, 2026	501-1,000	807 contacts →
	Partial evidence “We are Pares & Alvarez, our extensive experience and the recognition of our clients makes us one of the leading Engineering Companies in environmental, consulting, engineering and…” Source: RevenueBase Database · checked Sep 17, 2026
7	Telsan Engenharia E Serviços S A	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 17, 2026	1,001-5,000	765 contacts →
	Indirect evidence “Em 26 de julho de 1995 foi criada a Telsan, uma empresa de engenharia consultiva que tem o orgulho de ter como missão principal a prestação de serviços diferenciados, visando à…” Source: RevenueBase Database · checked Sep 17, 2026
8	Conserve Solutions	Partial evidence	Tamilnadu, United KingdomHQ checked Sep 17, 2026	501-1,000	745 contacts →
	Partial evidence “Conserve Solutions was founded by passionate professionals in 2016 to provide Holistic Engineering Solutions for a sustainable built environment.” Source: RevenueBase Database · checked Sep 17, 2026
9	Parlym	Partial evidence	Estaque, FranceHQ checked Sep 17, 2026	1,001-5,000	732 contacts →
	Partial evidence “For over 50 years the Parlym Group has managed to establish itself as a major player in industrial engineering all over the world.” Source: RevenueBase Database · checked Sep 17, 2026
10	Solution Leaders Fayez Engineering	Partial evidence	Khobar, Saudi ArabiaHQ checked Sep 17, 2026	501-1,000	574 contacts →
	Partial evidence “SLFE offers Engineering Services specialized in the Oil & Gas and Infrastructure industries.” Source: RevenueBase Database · checked Sep 17, 2026
11	Afaplan	Indirect evidence	Vila Nova De Gaia, PortugalHQ checked Sep 17, 2026	51-200	539 contacts →
	Indirect evidence “Fundada em 1985, a AFA – Consultores de Engenharia, Lda.” Source: RevenueBase Database · checked Sep 17, 2026
12	Valdel Engineers & Constructors	Partial evidence	Bangalore, IndiaHQ checked Sep 17, 2026	201-500	486 contacts →
	Partial evidence “Founded in 1991 as John Brown Engineering, later renamed to Kvaerner Process, the company is one of the pioneers in the engineering sector.” Source: RevenueBase Database · checked Sep 17, 2026
13	Megchem	Partial evidence	Secunda, South AfricaHQ checked Sep 17, 2026	201-500	468 contacts →
	Partial evidence “MegChem (Pty) Ltd is a multi-disciplinary engineering company based in Secunda, South Africa, providing engineering consulting, procurement, and project management services to…” Source: RevenueBase Database · checked Sep 17, 2026
14	Minconsult SDN BHD	Partial evidence	Petaling Jaya, MalaysiaHQ checked Sep 17, 2026	501-1,000	468 contacts →
	Partial evidence “Representing excellence in engineering since inception, Minconsult Sdn Bhd has grown nationally and internationally since 1962.” Source: RevenueBase Database · checked Sep 17, 2026
15	Cosmos-Eng	Partial evidence	Cairo, EgyptHQ checked Sep 17, 2026	201-500	466 contacts →
	Partial evidence “Introduction: COSMOS-E Engineers & Consultants is the leading company in multi-disciplinary Engineering and Consultancy Services in Egypt and the Middle-East.” Source: RevenueBase Database · checked Sep 17, 2026
16	Caramurú Construções Ltda	Indirect evidence	Araraquara, BrazilHQ checked Sep 17, 2026	501-1,000	455 contacts →
	Indirect evidence “A CARAMURÚ CONSTRUÇÕES LTDA, foi criada fruto de reunião de técnicos experientes, com a finalidade de atuar nos setores de projetos civis, mecânicos e elétricos, montagens…” Source: RevenueBase Database · checked Sep 17, 2026
17	Petroeng	Indirect evidence	Lauro De Freitas, BrazilHQ checked Sep 17, 2026	201-500	455 contacts →
	Indirect evidence “Uma empresa de engenharia de médio porte, que atua em vários segmentos tais como, projetos, gerenciamento, planejamento e assistência a montagens industriais, desde o projeto…” Source: RevenueBase Database · checked Sep 17, 2026
18	Sidvin Energy Engineering	Partial evidence	Bangalore, IndiaHQ checked Sep 17, 2026	201-500	441 contacts →
	Partial 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 17, 2026
19	Fairhurst	Indirect evidence	Glasgow, United KingdomHQ checked Sep 17, 2026	201-500	437 contacts →
	Indirect evidence “Welcome to Fairhurst: Fairhurst is a Limited Liability Partnership (LLP) of Consulting Engineers practicing in the UK, employing circa 400 staff in 16 principal offices.” Source: RevenueBase Database · checked Sep 17, 2026
20	H.H. Angus & Associates LTD	Partial evidence	Toronto, ON, CanadaHQ checked Sep 17, 2026	201-500	424 contacts →
	Partial evidence “HH Angus Corporate Overview HH Angus and Associates Limited was founded in 1919 and today is one of Canada’s larger private engineering firms.” Source: RevenueBase Database · checked Sep 17, 2026
21	Recon Management Services, INC	Partial evidence	Sulphur, LA, United StatesHQ checked Sep 17, 2026	501-1,000	420 contacts →
	Partial evidence “ReCon was established in 1995 and has matured as a high quality and competitive engineering consulting firm providing engineering design and project management services to the…” Source: RevenueBase Database · checked Sep 17, 2026
22	Sterling Engineering	Partial evidence	Westchester, IL, United StatesHQ checked Sep 17, 2026	501-1,000	402 contacts →
	Partial evidence “Sterling is an award-winning professional engineering consulting and technical staffing company.” Source: RevenueBase Database · checked Sep 17, 2026
23	Iplan Gestión Integral	Partial evidence	Barcelona, SpainHQ checked Sep 17, 2026	501-1,000	363 contacts →
	Partial evidence “Iplan is a company related to the engineering services of projects developed mainly in the energy sector, civil works, renewable energies and environment.” Source: RevenueBase Database · checked Sep 17, 2026
24	DAR Energy SDN BHD	Indirect evidence	Kuala Lumpur, MalaysiaHQ checked Sep 17, 2026	501-1,000	360 contacts →
	Indirect evidence “DAR energy was set up in 2011 to take on prospective projects from PETRONAS and other oil companies in Malaysia and abroad.” Source: RevenueBase Database · checked Sep 17, 2026
25	Speed Engineering Solutions	Partial evidence	Pune, IndiaHQ checked Sep 17, 2026	501-1,000	350 contacts →
	Partial evidence “Speed Engineering is a leading provider of advanced engineering services to Industry verticals such as Plant and Process, Energy, Engines & Gensets, Turbo-machinery, Aerospace and…” Source: RevenueBase Database · checked Sep 17, 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: prompt engineering services companies. 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 services companies.
Partial evidence: Its own public description names part of prompt engineering services companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name prompt engineering services companies. 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 4,538 prompt engineering services companies worldwide

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 13,739 reachable decision-makers.

Free signup · no credit card

View the full list →

Prompt engineering services companies worldwide at a glance

As of Sep 17, 2026

17.8%Verified-email coverage

17.0Average contacts per company

11-50Median size (employees)

1.8%Largest-city concentration · Sao Paulo

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

2,146

11-50

1,545

51-200

590

201-500

159

501-1,000

1,001-5,000

5,001-10,000

10001+

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 services companies, 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.
Coverage: 27 countries, largest first: the United States, Brazil, India, Saudi Arabia, the United Kingdom, Canada, Spain, Italy, the United Arab Emirates, Türkiye and 17 more. Country and city lists for prompt engineering services companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “prompt engineering services companies”. 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 services companies), 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 services companies, and records with no verified work email.
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, 13,739 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 17, 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 services companies by location

31 lists · largest first

Every Prompt engineering services companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 services companies, 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 services companies are there worldwide?

RevenueBase identified 4,538 prompt engineering services companies worldwide 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?

National Engineering Services Pakistan PVT Limited Nespak, headquartered in Lahore, tops this list with the largest team on record.

Which country has the most prompt engineering services companies?

The United States leads with 719 companies, followed by Brazil (610) and India (605). Every prompt engineering services companies list by country and city is linked on this page.

Which city has the most prompt engineering services companies?

Sao Paulo leads with 81 headquartered companies, followed by Riyadh (76) and Chennai (58).

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 13,739 verified decision-maker contacts tracked across these 4,538 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 17, 2026.

Ready to reach these companies? Verified emails and direct dials for all 4,538 prompt engineering services companies worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

Browse: Companies home · Lists by location · New lists

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.