# Data Center Water Treatment Market

> Data Center Water Treatment Market: USD 564.06 million in 2026, USD 1.77 billion by 2035, 14.41% CAGR from 2025 as liquid cooling loops add coolant care.

Publisher: DC Market Insights  
Author: Amit Jain, DC Market Insights  
Published: 2026-10-19  
Last updated: 2026-10-18  
Next review: Apr 2027  
Page: https://www.dcmarketinsights.com/report/data-center-water-treatment-market

## Key takeaways

- Zero-Water Cooling Designs at Microsoft and NVIDIA

**Frequently Asked Questions**

**What is the size of the Data Center Water Treatment Market in 2026?**

USD 564.06 million in 2026, up 22.12% from USD 461.89 million in 2025, according to DC Market Insights estimates. The market is projected to reach USD 1.77 billion by 2035, a CAGR of 14.41% from 2025.

**How fast is the Data Center Water Treatment Market growing?**

14.41% a year from 2025 to 2035, after 14.18% a year from 2020 to 2025. Growth holds because liquid cooling loops, growing 30.55% a year, offset slower spending on evaporative cooling towers as zero-water designs spread.

**What is data center water treatment?**

USD 461.89 million of 2025 spending covers chemicals, pretreatment and filtration equipment, monitoring and testing services that keep cooling tower water, chilled-water loops and liquid cooling coolant within quality limits. Water bills, cooling hardware and coolant fluid are excluded.

**How much does data center water treatment cost per MW?**

About USD 4,200 per evaporative-served MW a year in 2025, plus USD 18,000 of pretreatment equipment per new evaporative MW and USD 6,000 per liquid-cooled MW a year (DC Market Insights estimate).

**Which segment leads the Data Center Water Treatment Market?**

41.4% of 2025 value, or USD 191.15 million, goes to chemical treatment programs. Monitoring and control systems grow fastest among offerings at 19.36% a year as operators run towers at higher cycles of concentration.

**Why do liquid-cooled data centers need water treatment?**

5,558 MW of liquid-cooled AI capacity in 2025 needs coolant monitoring, inhibitors and flushing, because corrosion or biological growth can block cold plates. DC Market Insights expects 130,131 MW by 2035, making liquid loops 43.3% of the market.

**Which region leads the Data Center Water Treatment Market?**

46.0% of 2025 value, or USD 212.47 million, is spent in North America. The Middle East and Africa grows fastest at 18.46% a year, and Saudi Arabia is the fastest-growing large country at 20.99% a year.

**What rules require data center water treatment and testing?**

ASHRAE Standard 188 sets Legionella water management programs, New York City requires Legionella tests every 31 days from May 2026, and EU Delegated Regulation 2024/1364 makes data centres of 500 kW or more report water input.

**Who are the leading data center water treatment companies?**

About 24% of 2025 value is held by Ecolab (Nalco Water), and the top five suppliers hold about 55% (DC Market Insights estimate). Veolia, Solenis, ChemTreat, Kurita Water Industries and Xylem also compete.

**Why do Data Center Water Treatment Market estimates differ?**

USD 564.06 million in 2026 is the DC Market Insights figure for treatment only. Estimates that add water and sewer bills, cooling towers, coolant fluid or semiconductor ultrapure water are much larger.

## Dataset

| Series | Value | Unit |
| --- | --- | --- |
| Market size 2025 | 461.89 | USD million |
| Revenue CAGR | 14.41 | % |
| Market size 2035 | 1,770 | USD million |

## Frequently asked questions

### What is the size of the Data Center Water Treatment Market in 2026?

USD 564.06 million in 2026, up 22.12% from USD 461.89 million in 2025, according to DC Market Insights estimates. The market is projected to reach USD 1.77 billion by 2035, a CAGR of 14.41% from 2025.

### How fast is the Data Center Water Treatment Market growing?

14.41% a year from 2025 to 2035, after 14.18% a year from 2020 to 2025. Growth holds because liquid cooling loops, growing 30.55% a year, offset slower spending on evaporative cooling towers as zero-water designs spread.

### What is data center water treatment?

USD 461.89 million of 2025 spending covers chemicals, pretreatment and filtration equipment, monitoring and testing services that keep cooling tower water, chilled-water loops and liquid cooling coolant within quality limits. Water bills, cooling hardware and coolant fluid are excluded.

### How much does data center water treatment cost per MW?

About USD 4,200 per evaporative-served MW a year in 2025, plus USD 18,000 of pretreatment equipment per new evaporative MW and USD 6,000 per liquid-cooled MW a year (DC Market Insights estimate).

### Which segment leads the Data Center Water Treatment Market?

41.4% of 2025 value, or USD 191.15 million, goes to chemical treatment programs. Monitoring and control systems grow fastest among offerings at 19.36% a year as operators run towers at higher cycles of concentration.

### Why do liquid-cooled data centers need water treatment?

5,558 MW of liquid-cooled AI capacity in 2025 needs coolant monitoring, inhibitors and flushing, because corrosion or biological growth can block cold plates. DC Market Insights expects 130,131 MW by 2035, making liquid loops 43.3% of the market.

### Which region leads the Data Center Water Treatment Market?

46.0% of 2025 value, or USD 212.47 million, is spent in North America. The Middle East and Africa grows fastest at 18.46% a year, and Saudi Arabia is the fastest-growing large country at 20.99% a year.

### What rules require data center water treatment and testing?

ASHRAE Standard 188 sets Legionella water management programs, New York City requires Legionella tests every 31 days from May 2026, and EU Delegated Regulation 2024/1364 makes data centres of 500 kW or more report water input.

### Who are the leading data center water treatment companies?

About 24% of 2025 value is held by Ecolab (Nalco Water), and the top five suppliers hold about 55% (DC Market Insights estimate). Veolia, Solenis, ChemTreat, Kurita Water Industries and Xylem also compete.

### Why do Data Center Water Treatment Market estimates differ?

USD 564.06 million in 2026 is the DC Market Insights figure for treatment only. Estimates that add water and sewer bills, cooling towers, coolant fluid or semiconductor ultrapure water are much larger.

## How to cite

Data Center Market Research & Consulting | DC Market Insights, "Data Center Water Treatment Market", updated 2026-10-18, https://www.dcmarketinsights.com/report/data-center-water-treatment-market