What is The Sigma Group, Inc.'s NAICS code?

The Sigma Group, Inc.'s NAICS code is 54162 (Environmental Consulting Services).

Insights

Growth and Investment The Sigma Group demonstrates a strong commitment to regional economic development through recent investments like their stake in the Madison Region Economic Partnership, indicating openness to collaborations and expansion opportunities within the Wisconsin area.

Market Positioning Operating as a mid-sized, employee-owned firm with revenue between 50 and 100 million dollars, Sigma has positioned itself as a competitive player in environmental consulting, providing comprehensive services that appeal to clients seeking integrated environmental and engineering solutions.

Service Diversification Sigma’s broad platform of services—including groundwater assessments, remedial strategies, waste water treatment, and process engineering—presents multiple cross-selling opportunities to clients across various environmental and infrastructure sectors.

Technology Utilization The firm’s adoption of diverse digital tools such as Adobe Illustrator, Google Analytics, and cloud-based CDN services suggests a focus on leveraging technology for project management, outreach, and data analysis, which can be attractive to clients valuing innovative solutions.

Regional Focus Based in Southeastern Wisconsin and actively investing locally, Sigma is well-positioned to target regional clients requiring tailored environmental consulting and engineering services, especially those seeking partners with a strong community commitment.

The Sigma Group, Inc. Tech Stack

The Sigma Group, Inc. uses 8 technology products and services including W3 Total Cache, Autodesk AutoCAD Civil 3D, AutoCAD, and more. Explore The Sigma Group, Inc.'s tech stack below.

W3 Total Cache

Caching

Autodesk AutoCAD Civil 3D

Cad & Graphics

AutoCAD

Cad & Graphics

jQuery Migrate

Javascript Libraries

Yoast SEO

Search Engines

reCAPTCHA

Security

HTTP/3

Web & Portal Technology

Facebook

Widgets

The Sigma Group, Inc. Email Formats	Example	Percentage
FLast@thesigmagroup.com	JDoe@thesigmagroup.com	95%
Last@thesigmagroup.com	Doe@thesigmagroup.com	4%
First.Last@thesigmagroup.com	John.Doe@thesigmagroup.com	1%

The Sigma Group, Inc. Email Formats

Example

Percentage

FLast@thesigmagroup.com

JDoe@thesigmagroup.com

95%

Last@thesigmagroup.com

Doe@thesigmagroup.com

First.Last@thesigmagroup.com

John.Doe@thesigmagroup.com

Frequently Asked Questions

Where is The Sigma Group, Inc.'s headquarters located?

The Sigma Group, Inc.'s main headquarters is located at 1300 West Canal Street Milwaukee, Wisconsin 53233 United States. The company has employees across 2 continents, including North AmericaAsia.

What is The Sigma Group, Inc.'s phone number?

You can contact The Sigma Group, Inc.'s main corporate office by phone at

+1-414-643-****

. For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is The Sigma Group, Inc.'s official website and social media links?

The Sigma Group, Inc.'s official website is thesigmagroup.com and has social profiles on LinkedIn.

What is The Sigma Group, Inc.'s SIC code NAICS code?

The Sigma Group, Inc.'s SIC code is 8711 - Engineering Services NAICS code is 54162 - Environmental Consulting Services.

How many employees does The Sigma Group, Inc. have currently?

As of May 2026, The Sigma Group, Inc. has approximately 93 employees across 2 continents, including North AmericaAsia. Key team members include Cfo: D. C.Chief Financial Officer: B. D.Vice President And Civil Engineering Group Leader: C. C.. Explore The Sigma Group, Inc.'s employee directory with LeadIQ.

What industry does The Sigma Group, Inc. belong to?

The Sigma Group, Inc. operates in the Environmental Services industry.

What technology does The Sigma Group, Inc. use?

The Sigma Group, Inc.'s tech stack includes W3 Total CacheAutodesk AutoCAD Civil 3DAutoCADjQuery MigrateYoast SEOreCAPTCHAHTTP/3Facebook.

What is The Sigma Group, Inc.'s email format?

The Sigma Group, Inc.'s email format typically follows the pattern of FLast@thesigmagroup.com. Find more The Sigma Group, Inc. email formats with LeadIQ.

When was The Sigma Group, Inc. founded?

The Sigma Group, Inc. was founded in 1991.

The Sigma Group, Inc.

Q: How many employees does The Sigma Group, Inc. have currently?

The Sigma Group, Inc. has approximately 93 employees.

Q: What technology does The Sigma Group, Inc. use?

The Sigma Group, Inc.'s tech stack includes Oracle Primavera P6 Enterprise Project Portfolio Management, TweenMax, Google Analytics, Slider Revolution, jQuery.

Environmental ServicesWisconsin, United States51-200 Employees

The Sigma Group, Inc. is an employee-owned environmental consulting and engineering firm headquartered in Milwaukee, Wisconsin, serving clients in Southeastern Wisconsin. Its service platform covers the full lifecycle of environmental and site projects, including due diligence, subsurface investigations of soil, groundwater, and vapor, and the development and implementation of remedial strategies. The firm also delivers civil and site engineering, landscape architecture, environmental compliance, and turnkey wastewater treatment system design, along with health and safety, process and controls engineering, design and fabrication, surveying, construction management, facility planning, and related assessments. 

The Sigma Group serves clients facing environmental, regulatory, and infrastructure challenges, helping manage risk and compliance while delivering project outcomes. In the environmental services and consulting engineering landscape, it positions itself as a regional provider offering integrated capabilities across disciplines. The firm is based in Milwaukee and employs a local mid-sized team.

Insights

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