Insights

Strategic Focus RSI operates in environmental, nuclear, energy, construction, and project delivery sectors with a nearly 30-year track record and a mission to prioritize safety and performance. This suggests sales opportunities with agencies and private firms undertaking complex, regulation-heavy environmental and nuclear projects, particularly where compliance and safety are top priorities.

Certified Advantage RSIs certification as a Small Disadvantaged Business with 8(a) advantages can be leveraged in securing government contracts and set-aside opportunities. This positions RSI well for BD efforts targeting federal agencies and contractors seeking diverse suppliers with established performance history.

Regional Expertise Based in Oak Ridge, Tennessee, RSI has a location advantage near high-profile federal and energy projects, including nuclear and environmental initiatives. This can drive targeted outreach to regional agencies, labs, and contractors looking for local partners with vetted capabilities.

Workforce and Capability A skilled workforce and ASRC Industrial ecosystem with capabilities in construction, remediation, environmental engineering, and professional services indicate cross-sell potential across multiple service lines to current clients and within the ASRC network, expanding opportunities in large-scale programs.

Financial Scale Revenue range of 500M to 1B and a strong private-sector and federal project orientation imply capacity for large, multi-year programs. Sales conversations can emphasize RSI’s ability to handle complex, long-duration contracts with strong safety and performance records, appealing to agencies prioritizing reliability and outcomes.

Similar companies to RSI

RSI Tech Stack

RSI uses 8 technology products and services including MATLAB, iCIMS, Microsoft 365 Copilot, and more. Explore RSI's tech stack below.

Media & News

RSI's Email Address Formats

RSI uses at least 4 email formats:
RSI Email FormatsExamplePercentage
FLast@rsienv.comJDoe@rsienv.com
92%
First.Last@rsienv.comJohn.Doe@rsienv.com
6%
FirstLast@rsienv.comJohnDoe@rsienv.com
1%
Last@rsienv.comDoe@rsienv.com
1%

Frequently Asked Questions

What is RSI's stock symbol?

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RSI is a publicly traded company; the company's stock symbol is RSI.

What is RSI's official website and social media links?

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RSI's official website is rsienv.com and has social profiles on LinkedIn.

How much revenue does RSI generate?

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As of October 2026, RSI's annual revenue is estimated to be $500M - $1B.

What is RSI's SIC code and NAICS code?

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RSI's SIC code is 1799 - Special Trade Contractors, Not Elsewhere Classified and NAICS code is 54162 - Environmental Consulting Services.

How many employees does RSI have currently?

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As of October 2026, RSI has approximately 538 employees across 5 continents, including North America, Asia and Africa. Key team members include Chief Executive Officer: W. G., Vice President/General Manager: I. M. and Vp, Strategy And Growth: S. K. Explore RSI's employee directory with LeadIQ.

What industry does RSI belong to?

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RSI operates in the Environmental Services industry.

What technology does RSI use?

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RSI's tech stack includes MATLAB, iCIMS, Microsoft 365 Copilot, Squarespace, Microsoft SQL Server, Bluebeam, Articulate 360 and SendGrid.

What is RSI's email format?

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RSI's email format typically follows the pattern of FLast@rsienv.com. Find more RSI email formats with LeadIQ.

When was RSI founded?

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RSI was founded in 1996.
RSI logo

RSI

Environmental ServicesTennessee, United States501-1000 Employees

RSI is an environmental services firm based in Oak Ridge, Tennessee, operating as the AIS Environmental and Nuclear business line. It serves clients across environmental, nuclear, energy, construction, and project delivery sectors, providing planning and execution support for complex initiatives. With almost 30 years of experience, RSI has partnered with federal agencies and private industry to plan and execute projects that prioritize safety and performance. The organization emphasizes its workforce and its status as a Small Disadvantaged Business with 8(a) advantages.

Based in Oak Ridge, RSI focuses on assisting public and private sector projects in environmental and nuclear contexts, prioritizing safe, compliant project delivery. More information is available at rsienv.com.

Section iconCompany Overview

Website
rsienv.com
SIC Code
1799 - Special Trade Contractors, Not Elsewhere Classified
Stock Symbol
RSI
NAICS Code
54162 - Environmental Consulting Services
Founded
1996
Employees
501-1000

Section iconFunding & Financials

  • $500M - $1B

    RSI's revenue is estimated to be in the range of $500M - $1B

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