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Voltea is a Dallas-based water-technology company specializing in capacitive deionization systems for water softening and brackish-water desalination.

Last updated August 31, 2026

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Overview

Voltea is a water-technology company headquartered in Dallas, Texas. Its principal technological focus is capacitive deionization, commonly abbreviated as CapDI, an electrically driven method for removing dissolved salts from water. The company developed this approach for applications that include no-salt water softening and the treatment of brackish water, positioning its systems as an alternative to more conventional membrane- and chemically intensive water-treatment processes in selected use cases. CapDI operates by passing saline or mineral-containing water through a treatment cell containing oppositely charged electrodes and ion-selective membranes. An applied electric field draws positively and negatively charged ions toward opposing electrodes through the corresponding selective membranes. The treated water exits the cell after the dissolved ions have been removed from the main flow. Once the electrodes become loaded with ions, the system reverses their polarity. This releases the accumulated ions, which are retained between the membranes and removed as a concentrated brine stream. The electrodes can then return to their operating state, allowing the treatment cycle to continue. Voltea commercialized the technology through point-of-use and point-of-entry products. In 2017, it launched DiUse, a compact point-of-use system designed to provide no-salt water softening and lower-cost desalination of brackish water. The product was described as self-cleaning, internet-enabled, and capable of remote monitoring and control. These features reflect Voltea’s effort to combine water treatment with connected-device functionality, allowing operators or service providers to supervise equipment without being continuously on site. In 2018, Voltea introduced DiEntry, a point-of-entry system intended for whole-home water treatment. Whereas DiUse addresses treatment close to a particular point of consumption, DiEntry was designed to treat water entering an entire residence. The two product families demonstrate the company’s application strategy: adapting a common CapDI platform to different installation scales and customer requirements. Voltea also worked with Liquid Purification Engineers International, or LPE, in an effort to enter desalination markets in Thailand and other parts of Asia. The company’s commercial development was supported by investment from Anterra Capital, Rabobank, ETF, and Unilever. The reference material identifies €6 million in backing from these investors and a further €10 million raised in 2017; those figures are not presented here as current valuation, revenue, or market capitalization. The company expanded its manufacturing capabilities in 2016 by opening an automated robotic production facility in Texas. This investment was significant because it linked Voltea’s technology development with a more scalable production model. In 2018, the company was nominated for the Global Water Awards, providing external recognition of its work in water treatment. Available reference material does not establish a detailed current corporate structure, founder history, ownership status, financial performance, or broad product portfolio beyond the CapDI platform and the DiUse and DiEntry systems.

History

Voltea is a Dallas, Texas-based water-technology company built around capacitive deionization, or CapDI. The technology treats water by combining electrically charged electrodes with anionic and cationic selective membranes. As water passes through the treatment cell, dissolved positive and negative ions move through the appropriate membranes toward oppositely charged electrodes. The remaining stream is desalinated or softened water. A regeneration cycle allows the system to remove the ions collected during operation. Voltea reverses the polarity of the electrodes, causing the ions to leave their surfaces. The released ions are confined between the selective membranes and removed as concentrated brine. After the polarity is restored, the cell can resume treatment. This operating principle supports repeated treatment cycles without relying on conventional salt-based softening. In 2016, Voltea opened an automated robotic production facility in Texas. The facility represented an effort to industrialize manufacturing of the company’s systems and support larger-scale commercialization. The following year, Voltea launched DiUse, a point-of-use device for no-salt water softening and lower-cost desalination of brackish water. DiUse was described as self-cleaning and internet-enabled, with remote monitoring and control capabilities. Voltea expanded its product range in 2018 with DiEntry, a point-of-entry system intended for whole-home water treatment. The distinction between the two products reflects different installation models: DiUse was designed for treatment at or near a particular use point, while DiEntry was intended to treat water entering a residence. The company pursued international commercial opportunities through cooperation with Liquid Purification Engineers International. Their collaboration was aimed at entering desalination markets in Thailand and elsewhere in Asia. Voltea also received backing from Anterra Capital, Rabobank, ETF, and Unilever. The available account reports €6 million of backing and a further €10 million raised in 2017, but does not provide enough information to characterize the company’s complete financing history or current financial position. Voltea’s work received industry attention when it was nominated for the 2018 Global Water Awards. Beyond the CapDI platform, DiUse, and DiEntry, the available reference material does not document a broader set of named products, a complete leadership roster, later corporate transactions, or detailed current operations. Accordingly, the company is best characterized from the available sources as a specialized water-treatment technology business focused on electrically driven desalination and water softening.

  • 2018

    DiEntry introduced

    [1]

    Voltea launched DiEntry, a point-of-entry system intended for whole-home water treatment.

  • 2018

    Global Water Awards nomination

    [1]

    Voltea was nominated for the 2018 Global Water Awards.

  • 2017

    DiUse introduced

    [1]

    The company launched DiUse, a point-of-use CapDI device offering no-salt water softening and brackish-water desalination, with self-cleaning and connected monitoring features.

  • 2017

    Additional financing reported

    [1]

    Voltea reportedly raised an additional €10 million during 2017.

  • 2016

    Automated Texas production facility opens

    [1]

    Voltea opened an automated robotic production facility in Texas to support manufacturing of its water-treatment systems.

Products and positioning

Voltea positions its technology around electrically driven, no-salt water treatment for water softening and brackish-water desalination. Its product strategy emphasizes self-cleaning operation, modular deployment, automation, and remote monitoring.

  • Water-treatment technology

    Capacitive deionization (CapDI)

    Voltea’s core technology uses an electric field, opposing electrodes, and ion-selective membranes to remove dissolved ions from brackish or mineral-containing water. During regeneration, electrode polarity is reversed so accumulated ions can be released and removed as concentrated brine. The process is used for water softening and desalination applications.

  • Point-of-use water treatment · 2017

    DiUse

    DiUse is a point-of-use device based on Voltea’s CapDI platform. It was introduced for no-salt water softening and lower-cost desalination of brackish water. The system was described as self-cleaning and internet-enabled, allowing remote monitoring and control of the equipment.

  • Point-of-entry and whole-home water treatment · 2018

    DiEntry

    DiEntry is a point-of-entry CapDI system launched for whole-home water treatment. It is designed to treat water at the entrance to a residence rather than only at a single outlet, extending Voltea’s technology from localized point-of-use applications to household-wide treatment.

Brand decisions

  • 2018

    Launch of DiEntryProduct launch

    Background

    Following its point-of-use offering, Voltea pursued a larger residential installation format.

    Action taken

    The company launched DiEntry as a point-of-entry system for whole-home water treatment.

    Aftermath

    DiEntry broadened the stated application scope of Voltea’s CapDI systems from individual use points to household-wide treatment.

  • 2017

    Launch of DiUseProduct launch

    Background

    Voltea sought to apply CapDI to compact, decentralized water-treatment installations.

    Action taken

    It introduced DiUse as a point-of-use device for no-salt softening and brackish-water desalination.

    Aftermath

    The launch established a named commercial product around Voltea’s connected CapDI platform.

  • 2016

    Investment in automated manufacturingStrategy

    Background

    Voltea’s CapDI technology required a commercial production base as the company moved beyond technology development.

    Action taken

    The company opened an automated robotic production facility in Texas.

    Aftermath

    The facility strengthened Voltea’s manufacturing infrastructure, although the available source does not quantify its production output or commercial impact.

Sources1 sources

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