Overview

Pennsylvania Transformer Technology LLC (PTT) is a United States-based manufacturer of power and distribution transformers, with a focus on oil-filled units. Founded in 1927 and headquartered in Canonsburg, Pennsylvania, the company employs an estimated 200 to 500 people and is a subsidiary of Quanta Services. PTT serves electric utilities, renewable energy projects, data centers, and industrial customers. The company has announced plans for a transformer plant in Raeford, North Carolina, with shipments scheduled to begin in 2027.

At a glance

What Pennsylvania Transformer Technology LLC (PTT) makes

PTT produces substation transformers, generator step-up transformers, and mobile transformers, and holds ISO 9001 certification.

Products and capabilities described on the company's own site include Transmission, Assembly, Battery (source: patransformer.com).

Certifications

Pennsylvania Transformer Technology LLC (PTT) is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:

• ISO 9001 — patransformer.com

Latest developments

• 2026-08-10 — Industrial Facility Expansion Sought by Pennsylvania Transformer (civiciq.com)

• 2026-06-04 — Ganz Transformers to Supply Advanced Testing Equipment for Pennsylvania Facility - Transformer Technology (transformer-technology.com)

• 2026-05-28 — PTT 230-kV Shunt Reactor | American-Built EHV Solution (patransformer.com)

• 2026-03-17 — PTT NC Transformer Plant Set for 2027 Shipments (patransformer.com)

• 2025-12-30 — PTT Partnership - Pennsylvania Transformer Technology (patransformer.com)

• 2025-12-29 — New Distribution Transformer Facility | PTT USA Grid Energy! (patransformer.com)

Facilities

Pennsylvania Transformer Technology LLC (PTT) is headquartered in Canonsburg, Pennsylvania. Public sources also reference these locations:

• Pennsylvania — transformer-technology.com

• Canonsburg, PA — patransformer.com

• Charlotte, North Carolina — patransformer.com

• Raeford, NC — patransformer.com

Company details

PTT is a subsidiary of Quanta Services and has an estimated revenue band of $50 to 100 million. Pennsylvania Transformer Technology LLC (PTT) was founded in 1927, has an estimated 200-500 employees, and is headquartered in Canonsburg, Pennsylvania. On the LightSource stability read it is rated "Established & active": 99 years in operation (founded 1927). Holds ISO 9001 certification(s) per public sources.

Frequently asked questions

What does Pennsylvania Transformer Technology LLC (PTT) make?

Pennsylvania Transformer Technology LLC (PTT) is a United States-based manufacturer of power and distribution transformers, with a focus on oil-filled units. Founded in 1927 and headquartered in Canonsburg, Pennsylvania, the company employs an estimated 200 to 500 people and is a subsidiary of Quanta Services. PTT serves electric utilities, renewable energy projects, data centers, and industrial customers. The company has announced plans for a transformer plant in Raeford, North Carolina, with shipments scheduled to begin in 2027.

Where is Pennsylvania Transformer Technology LLC (PTT) headquartered?

Pennsylvania Transformer Technology LLC (PTT) is headquartered in Canonsburg, Pennsylvania (30 Curry Ave, Canonsburg, Pennsylvania, 15317-1786).

When was Pennsylvania Transformer Technology LLC (PTT) founded?

Pennsylvania Transformer Technology LLC (PTT) was founded in 1927.

How big is Pennsylvania Transformer Technology LLC (PTT)?

Pennsylvania Transformer Technology LLC (PTT) has an estimated 200-500 employees, with revenue in the $50-100M range (estimated).

What certifications does Pennsylvania Transformer Technology LLC (PTT) hold?

Pennsylvania Transformer Technology LLC (PTT) lists 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.