What Atonometrics does

Atonometrics is a private for-profit company founded in 2007 and headquartered in Austin, Texas, that develops test and measurement technology for the solar photovoltaics (PV) industry. The company's core offering is its soiling measurement systems, which are physical instruments designed to quantify environmental losses on PV panels caused by dust, dirt, and other soiling agents. These systems are positioned as industry-leading solutions for utility-scale solar projects seeking to understand environmental losses, reduce uncertainty in energy output predictions, and improve long-term energy yield through continuous PV performance monitoring.

The company's technical differentiation is explicitly tied to accuracy and precision in soiling measurement, addressing the operational problem that soiling-related losses can materially degrade solar asset performance and financial returns. Atonometrics operates as a brand within the OTT HydroMet group of companies, alongside Kipp & Zonen (solar radiation measurement), Lufft (weather and environmental sensors), and MeteoStar (weather analytics software), with the parent group headquartered in the Netherlands and operating globally. Pricing is not publicly disclosed, and the company has not announced customer logos or a structured go-to-market motion; its commercial reach is effectively delivered through OTT HydroMet's worldwide distribution network of direct sales, partners, and representatives.

Atonometrics has raised over $5 million in cumulative funding across its operating history, including a $1,765,800 round from Texas Venture Labs in December 2010 and a $1,000,000 DOE SBIR/STTR award in July 2021 for solar energy technology prototype development. The company employs 11–50 people and is led by President William Stueve. Revenue, customer concentration, and detailed operating metrics are not publicly disclosed.

Name

Atonometrics

Legal name

Atonometrics

Website

https://atonometrics.com

Company type

Private

Founded year

2007

Operating status

Operating

Headcount range

11–50 employees

Short description

Atonometrics, founded in 2007 and based in Austin, Texas, develops soiling measurement systems for utility-scale solar PV projects, quantifying environmental losses to improve energy output. The company operates as a brand within the OTT HydroMet group alongside Kipp & Zonen, Lufft, and MeteoStar.

Ownership category

akta.pro rank

Product category

Solar Measurement Instrumentation

NAICS

Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Other Measuring and Controlling Device Manufacturing (334519)

SIC

Measuring & Controlling Devices, Nec (3829)

akta.pro primary industry

Calibration Services & Standards (Calibration labs, reference standards, traceability services) (IMAGAFAH)

akta.pro secondary industry

Metering, Calibration & Flow Measurement Verification (EUAEAHAM)

Keywords

• Soiling measurement systems
• PV performance monitoring
• Solar radiation measurement
• Photovoltaic test equipment
• Solar energy monitoring

Headquarters

HQ city

Austin

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Personnel, Operations, Supply Chain, Marketing or Sales

Core offering

Atonometrics develops and manufactures soiling measurement systems used by solar photovoltaic (PV) projects to quantify environmental losses and monitor panel performance. The company's instruments bring clarity to PV performance by measuring the impact of soiling on energy output, enabling solar asset owners and operators to optimize long-term energy yield. Atonometrics operates as a specialized brand within the OTT HydroMet group alongside Kipp & Zonen, Lufft, and MeteoStar.

Product overview

Atonometrics is a company specializing in solar energy measurement technology. The company offers soiling measurement systems as its core product offering, which help solar projects understand environmental losses and improve long-term energy output. According to the source, Atonometrics brought new clarity to PV (photovoltaic) performance by introducing these industry-leading soiling measurement systems.

Differentiator

Problem solved

Functional benefit

Products and services

• Soiling Measurement Systems

Segments1 record

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

One partnership is on record.

• OTT HydroMetcoreStrategic or Co-development PartnerAtonometrics is part of the OTT HydroMet group of companies, which includes Kipp & Zonen (solar radiation measurement), Lufft (weather and environmental sensors), and MeteoStar (weather analytics software). OTT HydroMet operates globally with headquarters in the Netherlands and offices in Germany and the United States.

Scale indicators1 record

Recent moves4 records

Expansion highlights4 records

Direct peers

• Campbell Scientific: Provides data acquisition systems and environmental sensors widely used in solar PV monitoring stations. Overlaps with Atonometrics in supplying measurement instrumentation for utility-scale solar performance monitoring.
• Kipp & Zonen: Sister brand under OTT HydroMet that manufactures pyranometers and solar radiation instruments deployed alongside Atonometrics' soiling systems at solar sites. Directly comparable in PV performance measurement product category and customer base.
• EKO Instruments: Manufacturer of solar radiometers and PV monitoring instrumentation serving utility-scale solar projects worldwide. Directly overlaps with Atonometrics in solar resource and PV performance measurement.
• Hukseflux: Supplier of thermal and solar radiation sensors, including pyranometers and heat-flux measurement instruments used in PV and meteorological applications. Competes with Atonometrics in scientific-grade solar measurement for utility-scale solar deployments.
• Apogee Instruments: Manufacturer of environmental sensors including quantum and solar radiation sensors used in PV monitoring. Comparable niche in scientific-grade environmental measurement for solar energy applications.

Broad incumbents

• Vaisala: Large environmental and industrial measurement company offering weather, solar, and lightning detection instrumentation. Overlaps with Atonometrics in solar and environmental monitoring but serves a much broader portfolio of end markets.
• OTT HydroMet (parent): Corporate parent of Atonometrics encompassing Kipp & Zonen, Lufft, and MeteoStar. Operates broadly in hydrometeorology and solar measurement, with Atonometrics as its dedicated PV soiling measurement brand.

Emerging players

• LI-COR Biosciences: Manufacturer of environmental measurement instrumentation including radiometric sensors used in solar and atmospheric research. Adjacent competitor in scientific-grade radiation measurement for PV applications.
• Davis Instruments: Produces weather stations and environmental sensors with solar radiation measurement capabilities used in smaller-scale solar monitoring. Comparable technology base with overlap in environmental measurement for solar applications.
• NovaLynx Corporation: Supplier of meteorological and solar monitoring stations and sensors for utility-scale solar resource assessment. Directly comparable in providing measurement hardware for solar PV site characterization and monitoring.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights5 records

Customer concentration

• Xx.com/atonometrics
• LinkedInlinkedin.com/company/atonometrics

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds2 records

Investors2 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Atonometrics