About Theta

Built on engineering.
Connected across borders.

Theta Power Systems International is an American technology company with its engineering center in Joinville, Santa Catarina, Brazil.

Real controller hardware from Theta’s published portfolio
Real hardware · Theta’s published portfolio

American company.
Brazilian engineering.
Global capability.

Our model brings together U.S. customer connection and engineering experience rooted in Brazil’s industrial ecosystem.

We work alongside OEM teams on motor control, power electronics, embedded systems, simulation, and custom hardware and software. The development program is shaped around the application and the requirements of the product.

US

Plano, Texas

Headquarters & Sales
American company and customer connection.

BR

Joinville, Santa Catarina

Engineering center
Brazilian engineering and industrial experience.

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Global capability

Working alongside OEM engineering teams across borders.

Our name and identity

Engineering is part of our identity.

Theta Power Systems International 2026 logo
THE MEANING BEHIND THE MARK

The name and symbol connect Theta’s identity to the engineering disciplines behind our work.

The name Theta

The Greek letter theta inspired the name. The brand’s original narrative connects it to motor angle and thermal behavior in power electronics, alongside a reference to eta and motor efficiency.

A symbol built around motion

The mark is an artistic rendering of theta that also evokes the circuit symbol of an electric motor. Its white details represent current flow in the stator and create an impression of movement.

Brazilian roots

The green frame and blue rotor acknowledge the team’s roots in Brazil. In the original brand story, this combination refers to those roots rather than representing the Brazilian flag.

Red / Thermal challenges

The red Theta lettering refers to the thermal challenges of power conversion electronics.

Blue / Efficiency

The blue Power Systems lettering evokes a cool color and reinforces the efficiency theme.

Green / Engineering roots

The green ring, together with the blue rotor, connects the identity to the team’s Brazilian roots.

A message from the president
“For me, global engineering means bringing people and capabilities together around a shared objective: solving difficult engineering problems and turning ideas into better products. I am proud of the team we have built to make that possible.”

Raimundo Rengel · President

Our foundation

A practical engineering heritage.

Theta’s published history traces the team’s work in Brazil to 2015 and its international operation to 2018.

Engineered together.

  • Requirements and architecture
  • Simulation and design exploration
  • Hardware, firmware, and integration
  • Prototyping, validation, and production support

What does your next product need to do?

Bring your requirements. Let’s explore the engineering together.

Discuss your application