Insights

Mid-market Growth J&R Underground is a mid-sized construction contractor with 11-50 employees and a revenue range of 10M-25M, indicating opportunities to upsell standardized project management, ERP integration, and scalable field technologies to support growing project loads and operational efficiency.

Tech Stack Fit Current technologies include Atlassian, PHP, and web security measures, suggesting receptiveness to additional collaboration, issue tracking, and workflow automation tools, as well as security hardening and web optimization services to support client-facing portals.

Security & Compliance Adoption of Cloudflare Bot Management and security headers implies a priority on digital security and compliance; potential for security audits, hardened hosting, and compliance-ready implementations for sensitive project data.

Market Positioning Operating in construction with peers such as Stantec, AECOM, and Burns & McDonnell, there is an opportunity to pitch integrated technology and operations improvements aimed at competitive differentiation through efficiency, safety, and scalable Fieldwork solutions.

Growth Opportunities With revenue in the tens of millions and a leaner employee base, there is potential for modular service offerings such as standardized training, project controls, and modular IT services to support rapid project onboarding and expand into larger, multi-site projects.

J&R Underground, LLC Tech Stack

J&R Underground, LLC uses 8 technology products and services including Atlassian, RSS, Underscore.js, and more. Explore J&R Underground, LLC's tech stack below.

  • Atlassian
    Application Development & Management
  • RSS
    Content Management System
  • Underscore.js
    Javascript Libraries
  • PHP
    Programming Languages
  • HSTS
    Security
  • Cloudflare Bot Management
    Security
  • X-Content-Type-Options
    Web & Portal Technology
  • MetaSlider
    Web Platform Extensions

J&R Underground, LLC's Email Address Formats

J&R Underground, LLC uses at least 1 format(s):
J&R Underground, LLC Email FormatsExamplePercentage
FLast@jrundergroundllc.comJDoe@jrundergroundllc.com
90%
FMiddleLast@jrundergroundllc.comJMichaelDoe@jrundergroundllc.com
10%

Frequently Asked Questions

What is J&R Underground, LLC's phone number?

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You can contact J&R Underground, LLC'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 J&R Underground, LLC's official website and social media links?

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J&R Underground, LLC's official website is jrundergroundllc.com and has social profiles on LinkedIn.

How much revenue does J&R Underground, LLC generate?

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As of August 2026, J&R Underground, LLC's annual revenue is estimated to be $10M - $25M.

What is J&R Underground, LLC's NAICS code?

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J&R Underground, LLC's NAICS code is 23 - Construction.

How many employees does J&R Underground, LLC have currently?

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As of August 2026, J&R Underground, LLC has approximately 14 employees across 1 continents, including North America. Key team members include Controller And Vice President: M. M.. Explore J&R Underground, LLC's employee directory with LeadIQ.

What industry does J&R Underground, LLC belong to?

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J&R Underground, LLC operates in the Construction industry.

What technology does J&R Underground, LLC use?

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J&R Underground, LLC's tech stack includes AtlassianRSSUnderscore.jsPHPHSTSCloudflare Bot ManagementX-Content-Type-OptionsMetaSlider.

What is J&R Underground, LLC's email format?

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J&R Underground, LLC's email format typically follows the pattern of FLast@jrundergroundllc.com. Find more J&R Underground, LLC email formats with LeadIQ.

When was J&R Underground, LLC founded?

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J&R Underground, LLC was founded in 1999.
J&R Underground, LLC logo

J&R Underground, LLC

ConstructionWisconsin, United States11-50 Employees

J&R Underground, LLC operates as a construction contractor based in Blanchardville, Wisconsin, United States. The business is located at 916 Blake Street with a P.O. Box 82. It is described as a small to mid-sized firm within the construction industry. This places it among regional players serving construction needs in its area. Specific service lines, client types, or geographic scope are not detailed in the provided information. The company maintains a website at jrundergroundllc.com for reference.

Section iconCompany Overview

Phone number
NAICS Code
23 - Construction
Founded
1999
Employees
11-50

Section iconFunding & Financials

  • $10M - $25M

    J&R Underground, LLC's revenue is estimated to be in the range of $10M - $25M

Section iconFunding & Financials

  • $10M - $25M

    J&R Underground, LLC's revenue is estimated to be in the range of $10M - $25M

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