Insights

Market Position MSI is a mid-sized regional mechanical services provider with a long-standing presence in West Central Illinois and a mix of residential, commercial, and industrial capabilities, offering opportunities to upsell integrated HVAC, plumbing, and building automation solutions to existing and new clients in diverse sectors.

Growth Potential The company operates a sizable fleet and handles multiple service and installation projects, indicating capacity for larger maintenance contracts, facility retrofit programs, and ongoing service agreements that can be expanded with preventative maintenance packages.

Acquisition Footprint MSI was recently involved in an acquisition by PremiStar, suggesting a consolidation trend in the HVAC and building automation space; potential cross-sell and partnership opportunities with PremiStar’s extended portfolio and customer base.

Digital Readiness MSI utilizes WordPress, Shopify, Google Cloud, and modern web technologies, signaling a digital-savvy approach that can be leveraged for customer portals, remote monitoring, and data-driven service offerings to improve labor efficiency and energy management.

Revenue Focus With reported revenue in the $25M–$50M range and a mid-market employee base, there is likely appetite for scalable financing options, service-level agreements, and performance-based contracts that align with growth goals of mid-market clients in construction, manufacturing, and facilities management.

Similar companies to Mechanical Service Inc.

Mechanical Service Inc. Tech Stack

Mechanical Service Inc. uses 8 technology products and services including WordPress, Shopify, Google Workspace, and more. Explore Mechanical Service Inc.'s tech stack below.

Mechanical Service Inc.'s Email Address Formats

Mechanical Service Inc. uses at least 2 email formats:
Mechanical Service Inc. Email FormatsExamplePercentage
FLast@relyonmsi.comJDoe@relyonmsi.com
93%
Last@relyonmsi.comDoe@relyonmsi.com
7%

Frequently Asked Questions

What is Mechanical Service Inc.'s phone number?

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You can contact Mechanical Service Inc.'s main corporate office by phone at . 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 Mechanical Service Inc.'s official website and social media links?

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Mechanical Service Inc.'s official website is relyonmsi.com and has social profiles on LinkedIn.

How much revenue does Mechanical Service Inc. generate?

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As of September 2026, Mechanical Service Inc.'s annual revenue is estimated to be $25M - $50M.

What is Mechanical Service Inc.'s SIC code and NAICS code?

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Mechanical Service Inc.'s SIC code is 7699 - Repair Shops and Related Services, Not Elsewhere Classified and NAICS code is 23 - Construction.

How many employees does Mechanical Service Inc. have currently?

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As of September 2026, Mechanical Service Inc. has approximately 30 employees across 1 continents, including North America. Key team members include Service Manager: A. T., Fire Protection Estimator Project Manager: A. S. and Facilities Manager: H. L. Explore Mechanical Service Inc.'s employee directory with LeadIQ.

What industry does Mechanical Service Inc. belong to?

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Mechanical Service Inc. operates in the Construction industry.

What technology does Mechanical Service Inc. use?

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Mechanical Service Inc.'s tech stack includes WordPress, Shopify, Google Workspace, Google Cloud, JSON-LD, imagesLoaded, WP Engine and X-Content-Type-Options.

What is Mechanical Service Inc.'s email format?

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Mechanical Service Inc.'s email format typically follows the pattern of FLast@relyonmsi.com. Find more Mechanical Service Inc. email formats with LeadIQ.

When was Mechanical Service Inc. founded?

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Mechanical Service Inc. was founded in 1972.
Mechanical Service Inc. logo

Mechanical Service Inc.

ConstructionIllinois, United States11-50 Employees

Mechanical Service Inc. operates in the construction sector, delivering mechanical services to residential, commercial, and industrial customers in West Central Illinois. Headquartered in Galesburg, Illinois, MSI traces its history to 1972 when Stigner, Inc. and John Holt Plumbing and Heating merged to form the company. From its inception, the firm pursued a path focused on high-quality professional workmanship and strong ethical standards. That commitment, together with years of experience, underpins its ability to meet a broad range of mechanical service needs for the region.

The company runs a sizable field operation supported by over 60 service and installation vehicles, enabling service across Galesburg and nearby communities. In August 2022, PremiStar acquired Mechanical Service Inc.

Section iconCompany Overview

Phone number
SIC Code
7699 - Repair Shops and Related Services, Not Elsewhere Classified
NAICS Code
23 - Construction
Founded
1972
Employees
11-50

Section iconFunding & Financials

  • $25M - $50M

    Mechanical Service Inc.'s revenue is estimated to be in the range of $25M - $50M

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