Verified Nov 2026
Castings & Forgings
·
Montichiari, Lombardy
·
Since 1928
Gruppo Bonomi is an Italian industrial group headquartered in Montichiari, Lombardy, founded in 1928 and employing roughly 500 to 1,000 people. It makes electrical conductivity and insulation products, including composite and silicone insulators and catenary components, for the railway, energy, and custom industrial sectors. Its recent activity includes the acquisition of Perin Machining to begin production in the United States, reported in June 2026. The group serves automotive, electric-vehicle, electronics, construction, renewable-energy, and industrial-equipment markets.
Gruppo Bonomi at a glance
Revenue
$50-100M
Est. band
Employees
500-1,000
Founded
1928
Headquarters
Montichiari, Lombardy
Industries
Automotive
Electric Vehicles
Electronics
Construction
Renewable Energy
Industrial Equipment
Overview
Gruppo Bonomi is an Italian industrial group headquartered in Montichiari, Lombardy, founded in 1928 and employing roughly 500 to 1,000 people. It makes electrical conductivity and insulation products, including composite and silicone insulators and catenary components, for the railway, energy, and custom industrial sectors. Its recent activity includes the acquisition of Perin Machining to begin production in the United States, reported in June 2026. The group serves automotive, electric-vehicle, electronics, construction, renewable-energy, and industrial-equipment markets.
At a glance
Attribute | Detail |
|---|---|
Founded | 1928 |
Headquarters | Montichiari, Lombardy |
Employees | 500-1,000 |
Revenue | $50-100M (estimated) |
Primary capability | Castings & Forgings |
What Gruppo Bonomi makes
The company offers composite and silicone insulators, railway electrification and catenary components, and switchgear, and it lists castings and forgings as its primary capability.
Products and capabilities described on the company's own site include Transmission, Composite (source: gruppo-bonomi.com).
Latest developments
2026-10-05 — Mario Bonomi: «Lumezzane nel Dna, ma piccolo e bello non esiste più» | Giornale di Brescia (giornaledibrescia.it)
2026-06-26 — Bonomi Group avvia le produzioni negli Usa: acquisita la Perin Machining | Giornale di Brescia (giornaledibrescia.it)
2026-04-29 — 𝗪𝗲’𝗿𝗲 𝗲𝘅𝗰𝗶𝘁𝗲𝗱 𝘁𝗼 𝗮𝗻𝗻𝗼𝘂𝗻𝗰𝗲 𝘁𝗵𝗲 𝗮𝗽𝗽𝗼𝗶𝗻𝘁𝗺𝗲𝗻𝘁 𝗼𝗳 @𝗘𝗿𝗶𝗰 𝗕𝗹𝗮𝘀𝗰𝗼 𝗮𝘀 𝗩𝗶𝗰𝗲 𝗣𝗿𝗲𝘀𝗶𝗱𝗲𝗻𝘁 𝗼𝗳 𝗦𝗮𝗹𝗲𝘀 𝗮𝘁 𝗕𝗼𝗻𝗼𝗺𝗶 𝗨𝗦𝗔. | Gruppo Bonomi (linkedin.com)
2026-04-08 — O Gruppo Bonomi remonta ainda do final da década de 1920, sendo especializado em engenharia e produção de soluções ligadas à energia elétrica. Já a sua parceria com a Gimi, que resultou … | GBL - GIMI BONOMI Latin América (linkedin.com)
2025-12-02 — Gruppo Bonomi team had the pleasure of visiting Mitac Headquarters to review the progress of the Xidong Line Metro Project. | Gruppo Bonomi (linkedin.com)
2025-11-11 — 🚆 Gruppo Bonomi a supporto dell’elettrificazione ferroviaria in Marocco! | Gruppo Bonomi (linkedin.com)
Company details
The company is privately held, with an estimated annual revenue band of $50 to 100 million, and it grew out of a non-ferrous alloy foundry through acquisitions. Gruppo Bonomi was founded in 1928, has an estimated 500-1,000 employees, and is headquartered in Montichiari, Lombardy.
Frequently asked questions
What does Gruppo Bonomi make?
Gruppo Bonomi is an Italian industrial group headquartered in Montichiari, Lombardy, founded in 1928 and employing roughly 500 to 1,000 people. It makes electrical conductivity and insulation products, including composite and silicone insulators and catenary components, for the railway, energy, and custom industrial sectors. Its recent activity includes the acquisition of Perin Machining to begin production in the United States, reported in June 2026. The group serves automotive, electric-vehicle, electronics, construction, renewable-energy, and industrial-equipment markets.
Where is Gruppo Bonomi headquartered?
Gruppo Bonomi is headquartered in Montichiari, Lombardy (17 Via Arturo Mercanti, Montichiari, Lombardy, 25018).
When was Gruppo Bonomi founded?
Gruppo Bonomi was founded in 1928.
How big is Gruppo Bonomi?
Gruppo Bonomi has an estimated 500-1,000 employees, with revenue in the $50-100M range (estimated).
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Last verified Nov 2026. Is this your company? Request a correction.
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