Overview

Walter Tosto S.p.A. is an Italian manufacturer headquartered in Chieti, Abruzzo, founded in 1960. It employs an estimated 500 to 1,000 people and is privately held. The company designs and fabricates pressure vessels, reactors, and other process equipment for the oil and gas, petrochemical, power and energy, food and pharma, and chemical industries. In 2026 its Sphero units were installed at a Renco plant in Falconara Marittima as among the first uses of a new high-pressure hydrogen storage technology.

At a glance

What Walter Tosto S.p.A. makes

The company holds ISO 9001 and ISO 14001 certifications and lists welding, machining, and steel fabrication among its capabilities.

Products and capabilities described on the company's own site include Welding, Machining, Steel (source: waltertosto.it).

Certifications

Walter Tosto S.p.A. is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:

• ISO 14001 — waltertosto.it

• ISO 9001 — waltertosto.it

Latest developments

• 2026-09-25 — Le 4 Sphero di Walter Tosto S.p.A. installate nell'impianto di Renco a Falconara Marittima sono tra le prime applicazioni di una nuova tecnologia per lo stoccaggio di idrogeno ad alta pressione, sicura … | hyCharge (Connecto Group) (linkedin.com)

• 2026-09-07 — Luca Tosto: “Nell’industria bisogna investire cinque anni prima che il mercato arrivi” - MIT Technology Review Italia (technologyreview.it)

• 2026-04-15 — Un altro traguardo straordinario! Il settore 3 del Vacuum Vessel di ITER Organization è pronto per la spedizione! Partirà dal porto di Ortona questo componente che rappresenta un ulteriore passo in questo … | Walter Tosto S.p.A. (linkedin.com)

• 2026-02-25 — Attraverso le parole dell’Amministratore Delegato Luca Tosto abbiamo ripercorso le tappe decisive che hanno portato il Gruppo Tosto all’acquisizione di Belleli Energy CPE. Un cammino raccontato in occasione dell’evento “Crescere per competere”, … | Walter Tosto S.p.A. (linkedin.com)

• 2025-12-12 — From the port of Constanța, our OTR Reactor has officially embarked on its journey to Saudi Arabia. This state-of-the-art methanol reactor, designed for one of the most critical and demanding processes in … | Walter Tosto WTB (linkedin.com)

• 2025-11-27 — We have just completed a Waste Heat Boiler weighing over 200 tons for our long-standing client, Topsoe. This key component is part of a 300,000 Nm³/h blue hydrogen project in Ft. Saskatchewan, … | Walter Tosto WTB (linkedin.com)

Company details

The company is part of the Tosto Group, which its parent describes as one of Europe's larger manufacturers of critical equipment. Walter Tosto S.p.A. was founded in 1960, has an estimated 500-1,000 employees, and is headquartered in Chieti, Abruzzo. On the LightSource stability read it is rated "Established & active": 66 years in operation (founded 1960). Holds ISO 14001, ISO 9001 certification(s) per public sources.

Frequently asked questions

What does Walter Tosto S.p.A. make?

Walter Tosto S.p.A. is an Italian manufacturer headquartered in Chieti, Abruzzo, founded in 1960. It employs an estimated 500 to 1,000 people and is privately held. The company designs and fabricates pressure vessels, reactors, and other process equipment for the oil and gas, petrochemical, power and energy, food and pharma, and chemical industries. In 2026 its Sphero units were installed at a Renco plant in Falconara Marittima as among the first uses of a new high-pressure hydrogen storage technology.

Where is Walter Tosto S.p.A. headquartered?

Walter Tosto S.p.A. is headquartered in Chieti, Abruzzo (72 Via Erasmo Piaggio, Chieti, Abruzzo, 66100).

When was Walter Tosto S.p.A. founded?

Walter Tosto S.p.A. was founded in 1960.

How big is Walter Tosto S.p.A.?

Walter Tosto S.p.A. has an estimated 500-1,000 employees, with revenue in the $100-250M range (estimated).

What certifications does Walter Tosto S.p.A. hold?

Walter Tosto S.p.A. lists ISO 14001 · ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.

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Last verified Nov 2026. Is this your company? Request a correction.