Company lists · Data refreshed September 2026

Top 25 Electrical transmission contractors based in Mexico

Name: Electrical transmission contractors based in Mexico
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 297 companies tracked

RevenueBase identified 297 electrical transmission contractors headquartered in Mexico as of September 2026 and tracks 2,940 professional contacts across them, including 205 with verified work emails. Monterrey is the largest hub.

This list covers electrical transmission contractors headquartered in Mexico, 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 16, 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 16, 2026 86% judged on-target in blind review

297Companies

2,940Contacts tracked

205Verified emails

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The 25 largest electrical transmission contractors based in Mexico

Ranked by team size

Top 25 of 297 electrical transmission contractors based in Mexico, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to electrical transmission contractors: 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	Aselec Electricidad	Indirect evidence	San Benito, MexicoHQ checked Sep 16, 2026	201-500	156 contacts →
	Indirect evidence “Somos una empresa especializada en la creación, diseño, equipamiento y construcción de Subestaciones, Líneas de Transmisión y Distribución de Energía Eléctrica, con estándares…” Source: RevenueBase Database · checked Sep 16, 2026
2	Seselec	Strong evidence	Ciudad De México, MexicoHQ checked Sep 16, 2026	201-500	146 contacts →
	Strong evidence “SESELEC is an EPC company specialized in electrical infrastructure (Substations, Transmission Lines, Photovoltaic Plants) within Mexico, Iberia (Spain and Portugal) and Latin…” Source: RevenueBase Database · checked Sep 16, 2026
3	Hubbell México	Indirect evidence	Toluca, MexicoHQ checked Sep 16, 2026	1,001-5,000	129 contacts →
	Indirect evidence “Más de 138 años de calidad e innovación han sido los factores clave para el éxito y la permanencia de la empresa a lo largo del tiempo.” Source: RevenueBase Database · checked Sep 16, 2026
4	Eléctrica Aselec	Indirect evidence	Hermosillo, MexicoHQ checked Sep 16, 2026	201-500	96 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
5	Kotkoff	Indirect evidence	Ensenada, MexicoHQ checked Sep 16, 2026	51-200	92 contacts →
	Indirect evidence “Somos una empresa dedicada a ayudar a la industria a recibir una energía eléctrica de calidad, confiable y eficiente, desde su ingeniería, hasta el soporte durante su operación.La…” Source: RevenueBase Database · checked Sep 16, 2026
6	Fertig	Indirect evidence	Monterrey, MexicoHQ checked Sep 16, 2026	201-500	57 contacts →
	Indirect evidence “FERTIG S.A.” Source: RevenueBase Database · checked Sep 16, 2026
7	Electro Tableros DE Control, S.A. DE C.V	Indirect evidence	Gómez Palacio, MexicoHQ checked Sep 16, 2026	201-500	56 contacts →
	Indirect evidence “Somos una empresa de Ingeniería y Construcción especializada en obras eléctricas con capacidades propias para gestionar de manera integral proyectos de transmisión, distribución…” Source: RevenueBase Database · checked Sep 16, 2026
8	Sima Energía	Indirect evidence	Coyoacán, MexicoHQ checked Sep 16, 2026	51-200	36 contacts →
	Indirect evidence “SIMA Energía es un grupo de expertos en electrificación comercial e industrial, con oficinas centrales en la ciudad de México y operaciones en todo el territorio nacional.” Source: RevenueBase Database · checked Sep 16, 2026
9	Softelectrics Ingeniería, S.A. DE C.V	Indirect evidence	Toluca, MexicoHQ checked Sep 16, 2026	11-50	33 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
10	Corporativo Pycesa	Partial evidence	Zapopan, MexicoHQ checked Sep 16, 2026	51-200	29 contacts →
	Partial evidence “Electrical construction company specialized in high, medium and low voltage, procedures in the face of CFE and Uvies.” Source: RevenueBase Database · checked Sep 16, 2026
11	Denken Ingeniería	Indirect evidence	Monterrey, MexicoHQ checked Sep 16, 2026	51-200	29 contacts →
	Indirect evidence “Somos más que una empresa; somos una fuerza de cambio en el noreste de México.” Source: RevenueBase Database · checked Sep 16, 2026
12	AMP Contratistas	Indirect evidence	Reynosa, MexicoHQ checked Sep 16, 2026	51-200	26 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
13	Altos Ingeniería Eléctrica	Strong evidence	Zapopan, MexicoHQ checked Sep 16, 2026	51-200	25 contacts →
	Strong evidence “Altos Ingeniería Eléctrica is an electrical contractor for low, middle and high voltage systems.” Source: RevenueBase Database · checked Sep 16, 2026
14	NRG Ingenieria	Indirect evidence	Querétaro, MexicoHQ checked Sep 16, 2026	51-200	23 contacts →
	Indirect evidence “Somos una empresa dedicada a la realización de proyectos electromecánicos de alta calidad, especializados en el sector público y privado, dentro de las áredas de negocio como…” Source: RevenueBase Database · checked Sep 16, 2026
15	FG Electrical	Indirect evidence	Ciudad De México, MexicoHQ checked Sep 16, 2026	201-500	22 contacts →
	Indirect evidence “Somos la empresa líder en el servicio y comercialización de material eléctrico en media tensión, a través de la preferencia de nuestros clientes y proveedores, buscando en todo…” Source: RevenueBase Database · checked Sep 16, 2026
16	NEZCO	Indirect evidence	Tijuana, MexicoHQ checked Sep 16, 2026	51-200	19 contacts →
	Indirect evidence “Somos una constructora eléctrica con más de 30 años de experiencia, ofreciendo soluciones en media y alta tensión, anteponiendo la calidad, seguridad y eficiencia en cada proyecto.” Source: RevenueBase Database · checked Sep 16, 2026
17	Electric Advance	Indirect evidence	Guadalajara, MexicoHQ checked Sep 16, 2026	11-50	19 contacts →
	Indirect evidence “Tenemos la estructura técnica y los recursos humanos que nos permiten abordar con éxito obras de diversa índole.” Source: RevenueBase Database · checked Sep 16, 2026
18	Jacob And Jacob S.A DE C.V	Partial evidence	Mexico City C.p., MexicoHQ checked Sep 16, 2026	51-200	18 contacts →
	Partial evidence “Founded in 1992, with hands-on experience of more than 30 years in the marketing & manufacturing of medium and high voltage electrical equipment’s, Jacob and Jacob S.A DE C.V…” Source: RevenueBase Database · checked Sep 16, 2026
19	Electricidad Industrial DE Potencia	Partial evidence	Tlalnepantla, MexicoHQ checked Sep 16, 2026	11-50	15 contacts →
	Partial evidence “ELECTRICIDAD INDUSTRIAL DE POTENCIA S.A.” Source: RevenueBase Database · checked Sep 16, 2026
20	HH GM	Indirect evidence	Lomas De Chapultepec I Sección, MexicoHQ checked Sep 16, 2026	11-50	14 contacts →
	Indirect evidence “Somos una empresa dedicada a la venta de servicios de Ingeniería y Construcción Eléctrica, Soluciones de Ahorro, y consultoría en Sistemas de Medición y comunicación en el MEM…” Source: RevenueBase Database · checked Sep 16, 2026
21	Sepisa S.A. DE C.V	Indirect evidence	Monterrey, MexicoHQ checked Sep 16, 2026	51-200	13 contacts →
	Indirect evidence “Somos una empresa con más de 40 años de experiencia, especializada en la gestión, diseño y construcción de infraestructura eléctrica en alta tensión, particularmente en…” Source: RevenueBase Database · checked Sep 16, 2026
22	Caballero Solutions Power S.A. DE C.V	Partial evidence	Queretaro, MexicoHQ checked Sep 16, 2026	51-200	13 contacts →
	Partial evidence “Empresa 100% mexicana, brindamos soluciones electricas integrales en baja, media y alta tensión.” Source: RevenueBase Database · checked Sep 16, 2026
23	PQ Insel, S.A. DE C.V	Indirect evidence	Guadalajara, MexicoHQ checked Sep 16, 2026	11-50	12 contacts →
	Indirect evidence “Es la constructora eléctrica que le da soluciones precisas desde la elaboración de proyectos, hasta la ejecución de obra, con un enfoque específico en solucionar los problemas…” Source: RevenueBase Database · checked Sep 16, 2026
24	Grupo Tres R Termotécnica, S.A. DE C.V	Indirect evidence	Lomas De Chapultepec, MexicoHQ checked Sep 16, 2026	201-500	11 contacts →
	Indirect evidence “Grupo Tres R Termotécnica S.A.” Source: RevenueBase Database · checked Sep 16, 2026
25	Partalum	Indirect evidence	Gral. Escobedo, MexicoHQ checked Sep 16, 2026	51-200	9 contacts →
	Indirect evidence “Partalum es una empresa que tiene el compromiso de proporcionar conectores y herrajes eléctricos que satisfagan las necesidades de nuestros clientes.” Source: RevenueBase Database · checked Sep 16, 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: electrical transmission contractors. 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 electrical transmission contractors.
Partial evidence: Its own public description names part of electrical transmission contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical transmission contractors. 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 297 electrical transmission contractors based in Mexico

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Electrical transmission contractors based in Mexico at a glance

As of Sep 16, 2026

7.0%Verified-email coverage

9.9Average contacts per company

11-50Median size (employees)

6.1%Largest-city concentration · Monterrey

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

133

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for Mexico, so it is reported there. Company counts and contact totals on this page are exact for Mexico, over 297 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 electrical transmission contractors, 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 Mexico whose own description of what they do matches “electrical transmission contractors”. 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 electrical transmission contractors), 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 electrical transmission contractors, and records with no verified work email. Companies headquartered outside Mexico 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, 205 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 16, 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.

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 electrical transmission contractors, 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 electrical transmission contractors are there based in Mexico?

RevenueBase identified 297 electrical transmission contractors headquartered in Mexico 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?

Aselec Electricidad, headquartered in San Benito, tops this list with the largest team on record.

Which city has the most electrical transmission contractors?

Monterrey leads with 18 headquartered companies, followed by Guadalajara (15) and Ciudad De Mexico (12).

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 205 verified decision-maker contacts tracked across these 297 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 16, 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.