What Indoor Science does

Indoor Science is an Aurora, Illinois-based indoor environmental quality and industrial hygiene consulting firm founded in 2004 and operating as a subsidiary of ServiceMaster. The company tests, monitors, and consults on indoor air quality, industrial hygiene, and energy optimization for commercial and residential clients across healthcare, retail, industrial, multifamily, office, education, and hospitality verticals. Its service portfolio spans mold, asbestos, lead paint, VOC, radon, carbon monoxide, Legionella, formaldehyde, drug residue, and sewage contamination testing, plus industrial hygiene exposure assessments, safety training, and expert witness testimony. Service delivery is supported by 62 company-owned regional offices that cover approximately 90% of the US population within a 2-hour drive, and is staffed by Certified Industrial Hygienists (CIHs), Professional Engineers (PEs), and Certified Indoor Environmentalists (CIEs) using advanced scientific instruments valued over $10,000 and AIHA-certified laboratory analysis.

The company applies a proprietary, scientifically backed methodology and operates an independent scientific advisory board to keep pace with regulatory standards such as OSHA, NIOSH, EPA, and ASHRAE 188. Its energy optimization engineering practice analyzes MEP, BMS, lighting, and building envelope systems for mission-critical facilities exceeding 1M SF, and its IAQ monitoring design and deployment practice handles sensor selection, placement, installation, BMS integration, calibration, and ongoing alert management. The firm has completed over 15,000 projects and is led by Chief Science Officer Ian Cull, a member of ASHRAE.

Indoor Science generates revenue on a project-based, customized-quote professional services model, with no publicly listed pricing. Go-to-market is sales-led, driven by direct contact via phone (312.920.9393), web-based 'Get a Quote' forms, and an inbound content engine anchored by a blog and a 5,000+ subscriber 'IAQ Research of the Month' newsletter. Marquee customers include the US Army, US Navy, Saudi Aramco, Maersk, PepsiCo, Whataburger, Avis, Starbucks, NARA, Dover Corporation, and Anheuser-Busch. The company's positioning emphasizes independence from remediation and product sales, which eliminates conflict of interest and supports credibility with insurers, regulators, and legal proceedings where the firm has helped clients win 7-figure payouts.

Name

Indoor Science

Legal name

Indoor Science

Website

https://indoorscience.com

Company type

Private

Founded year

2004

Operating status

Operating

Headcount range

51–100 employees

Short description

Indoor Science is a US-based indoor air quality, industrial hygiene, and energy optimization consulting firm serving commercial, residential, and government clients through 62 company-owned regional offices and a staff of certified industrial hygienists and professional engineers.

Ownership category

akta.pro rank

Product category

Environmental Consulting Services

NAICS

Testing Laboratories and Services (541380), Environmental Consulting Services (541620)

SIC

Services-Testing Laboratories (8734), Services-Commercial Physical & Biological Research (8731)

akta.pro primary industry

Indoor Air Quality (IAQ) & Building Health Assessments (EUAHAGAG)

akta.pro secondary industries

Smart Air Quality Sensors, Purifiers & Humidifier/Dehumidifier Integration (HSAOANAH), Indoor Air Quality (IAQ) & Building Environmental Sampling (EUAHACAH)

Keywords

• Indoor air quality testing
• Industrial hygiene consulting
• Environmental testing services
• Building science consulting
• Energy optimization engineering

Headquarters

HQ city

Aurora

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Indoor Air Quality Testing and Consulting Services: Professional consulting services for testing, monitoring, and improving indoor air quality and environmental health. Services include mold testing, asbestos testing, lead paint inspection, VOC testing, radon testing, COVID-19 testing, and general air quality assessments. Revenue is generated through project-based fees with customized pricing.
2. Industrial Hygiene Services: Exposure assessments, safety training solutions, and expert witness testimony services. Includes personal and area monitoring, EHS program design, and legal proceedings support. Revenue is generated through consulting engagements and professional service fees.
3. Energy Optimization Engineering: Engineering services analyzing MEP systems, lighting, and building envelope for energy savings opportunities. Services include baseline assessment, implementation as Owners Rep, and verification of savings. Revenue generated through engineering consulting engagements.
4. Monitoring Systems Design and Deployment: Design, deployment, and safeguarding of sensor and monitoring systems for properties. Includes sensor selection, placement, network integration, BMS integration, and ongoing calibration services.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Indoor Science is an environmental building solutions firm that tests, monitors, and improves indoor environments through indoor air quality testing, industrial hygiene consulting, and energy optimization engineering services. Services include mold, asbestos, lead, VOC, radon, carbon monoxide, Legionella, formaldehyde, drug residue, and COVID-19 testing, alongside exposure assessments, safety training, expert witness testimony, LEED/ENERGY STAR/WELL/RESET certification support, and sensor monitoring system design and deployment. Deliverables are produced by Certified Industrial Hygienists, Professional Engineers, and Certified Indoor Environmentalists using advanced scientific instruments and AIHA-certified laboratory analysis.

Product overview

Indoor Science is an environmental consulting firm offering a comprehensive portfolio of indoor air quality and industrial hygiene testing services. The company operates as a unified service offering rather than a platform-plus-modules architecture. Core services include mold testing, asbestos testing, lead paint inspection, VOC testing, radon testing, carbon monoxide testing, odor investigation, Legionella testing, formaldehyde testing, drug residue testing, and sewage contamination testing. The company also provides industrial hygiene consulting (exposure assessments, safety training, expert witness services), energy optimization engineering, LEED air testing, ENERGY STAR evaluations, and COVID-19 consulting services. Services are delivered through 62 company-owned regional offices across the US by Certified Industrial Hygienists (CIHs), Professional Engineers (PEs), and Certified Indoor Environmentalists (CIEs) using scientific instruments and AIHA-certified laboratory analysis. The company emphasizes independent consulting without conflicts of interest—they do not sell remediation services or air cleaning products.

Differentiator

Problem solved

Functional benefit

Products and services

• Mold Testing & Clearance Mold inspection and testing services using infrared cameras, moisture meters, borescopes, air samples, surface samples, and laboratory analysis to identify mold growth and underlying moisture sources for residential, commercial, and industrial clients.
• Asbestos Testing Asbestos inspection and testing services including bulk, air, and dust sampling with laboratory analysis to identify asbestos-containing materials in residential, commercial, and industrial buildings.
• Lead Paint Inspection Lead paint inspection and testing services including paint chip sampling, dust wipe sampling, and XRF testing for properties built prior to 1978.
• Volatile Organic Compounds (VOCs) Testing VOC testing using photoionization detectors (PIDs) for screening and laboratory-based analysis via gas chromatography and mass spectrometry (GC/MS) to identify individual VOC compounds and concentrations.
• Radon Testing Radon testing services using electrets and continuous radon monitors for residential, multifamily, commercial buildings, and daycare centers, following state licensing requirements.
• Coronavirus/COVID-19 Services COVID-19 consulting services including back-to-work procedures, ventilation studies, cleaning and disinfection protocols, SARS-CoV-2 testing via RT-PCR, ATP swab testing, and cleaning staff training.
• General Air Quality Testing Comprehensive indoor air quality assessments evaluating temperature, relative humidity, carbon dioxide, surface moisture, and collecting air, surface, dust, and bulk samples for laboratory analysis.
• Carbon Monoxide Testing & Monitoring Carbon monoxide testing using worst-case scenario simulation with exhaust fans and logging concentrations over time to identify combustion appliance issues.
• Odor Testing Services Odor investigation services using smoke pencils, combustible gas meters, photoionization detectors, and other instruments to identify and characterize odor sources.
• Industrial Hygiene Services Industrial hygiene consulting including exposure assessments (personal and area sampling), safety training programs, and expert witness testimony for legal proceedings.
• Indoor Air Quality Monitoring Design & Deployment Sensor monitoring services including sensor selection, placement strategy, installation, calibration, BMS integration, data visualization, and ongoing alert management.
• Energy Optimization Engineering Energy optimization services analyzing mechanical, electrical, plumbing, BMS, lighting, and building envelope systems to identify cost savings opportunities and implement improvements as owner's representative.
• Legionella Testing Services Legionella risk assessments, water management plans following ASHRAE 188 standards, and testing via culture and qPCR methods.
• Formaldehyde Testing Formaldehyde testing using 30-minute instrument sampling or DNPH tube collection with HPLC/UV laboratory analysis.
• Drug Residue Testing Drug contamination testing for methamphetamine, marijuana (THC), cocaine, fentanyl, MDMA, and LSD using surface wipe sampling.
• Flooding & Sewage Contamination Testing Sewage and flood damage assessment including clearance testing for fecal pathogens using indicator organisms.
• Acoustics & Lighting Assessments Acoustical environment assessments using sound level meters, noise dosimeters, and octave band analysis; lighting assessments for building occupant comfort and productivity.
• LEED Air Testing Services LEED certification air quality testing measuring particulates, carbon monoxide, TVOCs, formaldehyde, and 35 target VOCs per USGBC requirements.
• ENERGY STAR Evaluations Professional engineer field verification for ENERGY STAR certification, including on-site assessment of physical and operating characteristics, utility bill verification, and indoor environment assessment.
• Chemical Sensitivities Assessments Indoor environmental assessments for multiple chemical sensitivity (MCS) including thorough investigation for common IAQ problems and gradual re-exposure protocols.

Quantifiable outcome

• Expert witness testimony helped defense and plaintiffs win $Millions in court cases and settlements
• +2 more outcomes

Named customers11 records

Segments10 records

Ideal customer profiles10 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

One partnership is on record.

• ServiceMastercoreOthersIndoor Science is a ServiceMaster Company, operating as a subsidiary of ServiceMaster Global Holdings. This affiliation provides operational backing and association with a larger network of service brands including Merry Maids, ServiceMaster Clean, ServiceMaster Restore, Aftermath Services, and TWO MEN AND A TRUCK.

Scale indicators7 records

Recent moves7 records

Expansion highlights7 records

Broad incumbents

• Bureau Veritas: International TIC firm offering building and environmental testing services including IAQ, asbestos, and industrial hygiene. Comparable as a large-scale commercial testing competitor, though Indoor Science is more specialized in IAQ/IH and operates a denser US field network.
• SGS SA: Global testing, inspection, and certification giant with broad environmental and indoor air quality testing capabilities. Comparable as a diversified commercial testing services provider, though SGS operates across many verticals beyond IAQ/IH and competes for enterprise-level master agreements.
• UL Solutions: Safety science and certification organization with EHS and building environmental services. Comparable as an enterprise-grade testing/safety competitor, with similar credibility positioning but a much broader product certification portfolio.
• Intertek: Global testing and inspection company with environmental and building health services. Comparable as a TIC competitor pursuing enterprise environmental and IAQ engagements, though Intertek's portfolio spans far beyond indoor environmental quality.
• GHD: Global engineering and environmental consulting firm with EHS and building performance practices. Comparable as a multi-disciplinary environmental/IH competitor, though GHD is engineering-led rather than building-IAQ-specialized.
• Tetra Tech: Large environmental and engineering consulting firm serving government and industrial clients. Comparable as a higher-end environmental/IH consulting competitor, though Tetra Tech focuses on larger infrastructure and water/environmental remediation projects rather than the building-IAQ niche.
• AECOM: Global infrastructure consulting firm with environmental and EHS practices. Comparable as a large-scale environmental services competitor serving government and industrial accounts, though AECOM is far broader and skews toward infrastructure rather than building IAQ.

Direct peers

• SLR Consulting: Environmental and EHS advisory firm with industrial hygiene and indoor environmental quality practices. Comparable as a mid-sized environmental consultancy serving similar enterprise and government clients, though with stronger international footprint.
• Roux Associates: Environmental consulting firm specializing in industrial hygiene, indoor air quality, and building science investigations. Comparable as a US EHS/IAQ consulting peer competing for similar industrial hygiene and building health assessment engagements.
• TRC Companies: US-focused environmental, engineering, and construction services firm offering EHS, industrial hygiene, and indoor air quality consulting. Comparable as a US-domiciled IH/EHS services peer with overlapping exposure assessment and building environmental capabilities.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/IndoorScience
• Facebookfacebook.com/indoorscience
• LinkedInlinkedin.com/company/indoor-science

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

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 Indoor Science