Insights

Engineering scale Longstanding mechanical and plumbing contractor with a 110+ year track record and a diversified portfolio across commercial, industrial, institutional, and residential sectors, signaling stable demand and opportunities for repeat business.

Union workforce Fully unionized with ongoing labor agreements, providing access to a large, trained labor pool for projects of all sizes and potential for collaboration with vendors and subcontractors that service union projects.

Prefabrication edge On-site prefabrication and in-house manufacturing capabilities enable faster project delivery, cost control, and high-quality outcomes, presenting a sales angle for efficiency-focused clients and value engineering.

Tech driven Adoption of BIM, 3D drafting, computer estimating, job costing, scheduling, and modern O&M manual delivery suggests readiness to engage in technology-driven projects and integrate with clients' digital workflows.

Growth readiness Revenue positioned in the small-to-mid market range with substantial project management capacity (staffing and facilities) and strong regional presence in Wisconsin, indicating opportunities to upsell larger scopes, maintenance contracts, or integrated facilities services.

1901 Inc. Tech Stack

1901 Inc. uses 2 technology products and services including Windows Server, Microsoft IIS, and more. Explore 1901 Inc.'s tech stack below.

  • Windows Server
    Operating Systems
  • Microsoft IIS
    Web Servers

1901 Inc.'s Email Address Formats

1901 Inc. uses at least 2 format(s):
1901 Inc. Email FormatsExamplePercentage
FLast@1901inc.comJDoe@1901inc.com
94%
FirstL@1901inc.comJohnD@1901inc.com
6%
FLast@h-hgroup.comJDoe@h-hgroup.com
75%
First.Last@h-hgroup.comJohn.Doe@h-hgroup.com
25%

Frequently Asked Questions

What is 1901 Inc.'s official website and social media links?

Minus sign iconPlus sign icon
1901 Inc.'s official website is h-hgroup.com and has social profiles on LinkedIn.

What is 1901 Inc.'s NAICS code?

Minus sign iconPlus sign icon
1901 Inc.'s NAICS code is 23 - Construction.

How many employees does 1901 Inc. have currently?

Minus sign iconPlus sign icon
As of July 2026, 1901 Inc. has approximately 51 employees across 1 continents, including North America. Key team members include Vice President: T. M.Controller: M. W.Bim Manager: A. G.. Explore 1901 Inc.'s employee directory with LeadIQ.

What industry does 1901 Inc. belong to?

Minus sign iconPlus sign icon
1901 Inc. operates in the Construction industry.

What technology does 1901 Inc. use?

Minus sign iconPlus sign icon
1901 Inc.'s tech stack includes Windows ServerMicrosoft IIS.

What is 1901 Inc.'s email format?

Minus sign iconPlus sign icon
1901 Inc.'s email format typically follows the pattern of FLast@1901inc.com. Find more 1901 Inc. email formats with LeadIQ.

When was 1901 Inc. founded?

Minus sign iconPlus sign icon
1901 Inc. was founded in 1901.
1901 Inc. logo

1901 Inc.

ConstructionWisconsin, United States51-200 Employees

1901 Inc. is a construction contractor focused on mechanical services for commercial, industrial, institutional, and residential projects. Rooted in Madison, Wisconsin, the company traces its origins to 1901, evolving from a small plumbing and pipe fitting shop into a broader mechanical contracting firm with an emphasis on on-site prefabrication, material quality, and project efficiency. Its work combines extensive field operations with office support, utilizing modern estimating, costing, scheduling, and drafting practices to manage projects of varying scale while maintaining cost controls and on-time delivery. The firm operates as a union contractor with ongoing labor agreements, enabling a stable workforce to support diverse mechanical and plumbing needs. 1901 positions itself within the mechanical contracting segment of the construction industry, leveraging in-house fabrication capabilities and coordinated design processes to serve its clients, including the management of operating and maintenance documentation for projects.

Section iconCompany Overview

NAICS Code
23 - Construction
Founded
1901
Employees
51-200

Section iconFunding & Financials

  • $1M$10M

    1901 Inc.'s revenue is estimated to be in the range of $1M$10M

Section iconFunding & Financials

  • $1M$10M

    1901 Inc.'s revenue is estimated to be in the range of $1M$10M

Ready to create more pipeline?

Get a demo and discover why thousands of SDR and Sales teams trust
LeadIQ to help them build pipeline confidently.

© LeadIQ, Inc. All rights reserved.