Stone Environmental, Inc. (SEI)

Stone Environmental, Inc. (SEI)

One of the top US firms evaluating the environmental effects of agrochemical use. Wide range of scientific disciplines: Analytical Chemistry, Biomathematics, Biostatistics, Chemistry, Civil Engineering, Crop Ecology, Computer Programming, Data Management, Environmental Science, Environmental Engineering, Environmental Chemistry, Forest Biology, Geochemistry, Geology, Hydrogeology, Internet Applications Development, Mathematical Modeling, Quality Assurance/Quality Control, Quantitative Agronomy, Soil Science, Spatial Analysis/Geographic Information Systems, Surface Water Hydrology, Sustainable Wastewater Management, Urban Planning.

Company details

535 Stone Cutters Way , Montpelier , Vermont 05602 USA
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Business Type:
Engineering service provider
Industry Type:
Environmental Management
Market Focus:
Internationally (various countries)
Year Founded:
$1,000,000 US - $10,000,000 US

This company also provides solutions for other industrial applications.
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Stone Environmental, Inc. was founded in 1992 and quickly established itself as one of the top US firms evaluating the environmental effects of agrochemical use. Since then, we have expanded to a 36-person multidisciplinary team with expertise in a wide range of scientific disciplines:

  • • Analytical Chemistry
  • • Biomathematics
  • • Biostatistics
  • • Chemistry
  • • Civil Engineering
  • • Crop Ecology
  • • Computer Programming
  • • Data Management
  • • Environmental Science
  • • Environmental Engineering
  • • Environmental Chemistry
  • • Forest Biology
  • • Geochemistry
  • • Geology
  • • Hydrogeology
  • • Internet Applications Development
  • • Mathematical Modeling
  • • Quality Assurance/Quality Control
  • • Quantitative Agronomy
  • • Soil Science
  • • Spatial Analysis/Geographic Information Systems
  • • Surface Water Hydrology
  • • Sustainable Wastewater Management
  • • Urban Planning


Our scientists are organized into five distinct groups that share a common theme: water quality.

Our Site Investigation Field Services team helps consultants and companies characterize hazardous waste sites with cost- and time-saving field data collection techniques consistent with the Triad approach.

The Applied Information Management (AIM) team uses Geographic Information Systems (GIS), custom databases, statistical software, and environmental modeling tools to analyze and visualize data, providing clients with valuable information for sustainable development, planning, decision support, and management.

Using spatial analysis and modeling to understand environmental conditions and conduct field studies, our Agrochemical Fate and Exposure group assesses the vulnerability of water resources and predicts chemical concentrations in the environment.

Our Water Resources Management group finds cost-effective and manageable ways for communities to protect their water resources and environmentally sensitive areas.

The Information for Sustainable Development (ISD) group gets the right information at the right time to decision makers in governmental agencies, NGOs, and international organizations so they can develop sound strategies and policies to reduce hunger and conflict around the world, and to improve health, education, governance, and the environment.

Stone is based in Montpelier, Vermont, a New England state admired for its quality of life and strong environmental values. Because we’re in such a desirable location, we have been able to recruit some of the country’s best scientists and professionals.

Our principals—Christopher Stone, David Healy, Seth Pitkin, and Bruce Douglas—bring 110 years of combined experience to the company, as well as a strong commitment to customer and employee satisfaction.

Our Core Values

    • We bring:
    • • Scientific integrity and innovation
    • • Respect and professionalism
    • • A focus on client needs

  • We are:
  • • People focused
  • • Process driven
  • • Results oriented
  • • Business minded
  • • Passionate about our work