Sentry

What Sentry does

Sentry, operating as Sentry USA, is a self-performing general contractor and design-build construction firm headquartered in Watertown, South Dakota, with a secondary office in Sioux Falls. The company originated as a single-crane operation serving western North Dakota oilfields and has since expanded into a multi-division construction platform serving commercial, industrial, agricultural, municipal/infrastructure, and renewable energy markets across South Dakota and the broader Midwest, with project reach extending into North Dakota, Minnesota, Pennsylvania, Idaho, and Iowa. Its operations are organized around seven in-house divisions: General Contracting, Electrical, Mechanical, Manufacturing, South Dakota Service, Controls & Automation, and Workover, supplemented by certified/authorized dealer relationships with Brock Grain Systems, Chief Agri, Reinke Irrigation, and Nucor Building Systems.

Sentry's revenue is generated primarily through project-based construction contracts delivered under general contracting, design-build, and Construction Manager at Risk (CMAR) models, plus fees for self-performed trade services and certified product line supply and installation. The technical platform rests on in-house capabilities including CNC machining, MIG/TIG welding, structural steel fabrication, a 40-foot wet paint booth, and a Controls & Automation division that designs and builds UL-listed custom control panels with PLC/HMI/SCADA programming and systems integration. Key customers span municipal governments (Fort Berthold Reservation's $33.3M Bruce A. Fox Water Treatment Plant, City of Mobridge, City of Redfield, Clark County), educational institutions (South Dakota State University, Lake Area Technical College), industrial operators (Midwest ethanol plants, a large Idaho dairy manufacturer), agricultural enterprises (Reinke irrigation installations, Hamlin County's $15MM+ biogas digester facility), and commercial end users. Go-to-market is sales-led, relationship-based, and geographically concentrated in the Upper Midwest, supported by an emergency and service response capability for industrial plant shutdowns.

Name

Sentry

Legal name

Sentry

Website

https://sentryusa.com

Company type

Private

Founded year

2011

Operating status

Operating

Headcount range

51–100 employees

Short description

Sentry is a self-performing general contractor and design-build construction firm headquartered in Watertown, South Dakota, delivering commercial, industrial, agricultural, municipal, and renewable energy projects across the Midwest via in-house electrical, mechanical, manufacturing, and controls divisions plus certified dealer partnerships.

Ownership category

akta.pro rank

Product category

General Contracting and Construction Services

NAICS

Electrical Contractors and Other Wiring Installation Contractors (23821), Oil and Gas Field Machinery and Equipment Manufacturing (333132), Farm Management Services (115116)

SIC

Wholesale-Construction & Mining (No Petro) Machinery & Equip (5082), Farm Machinery & Equipment (3523), Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Bulk Material Handling Systems (Belt Conveyors, Feeders, Stackers, Reclaimers) (IMAHABAH)

akta.pro secondary industries

Material Handling & Loader Attachments (Front Loaders, Telehandlers, Bale Handlers, Forks) (AFAAAAAC), Loading/Unloading & Transfer Equipment (Telescopic Conveyors, Loaders, Tipplers) (IMAHABAI)

Keywords

• General contracting services
• Design-build construction
• Industrial automation systems
• Agricultural infrastructure
• Mechanical and electrical services

Headquarters

HQ city

Watford City

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Operations, Personnel, Supply Chain, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. General Contracting & Construction Services: Sentry generates revenue primarily through fees for general contracting, design-build, and Construction Manager at Risk (CMAR) project delivery. Revenue is project-based, derived from construction contracts across commercial, industrial, agricultural, and infrastructure markets in South Dakota and the Midwest.
2. Self-Performing Trade Services: Revenue from self-performed scopes including electrical, mechanical, structural steel, manufacturing, controls & automation, crane & trucking, and field services — billed as part of overall project delivery or on a standalone service basis.
3. Certified Product Line Sales & Installation: Revenue from supplying and installing certified product lines (Brock Grain Systems, Chief Agri, Reinke Irrigation, Nucor Steel Buildings) including system design, certified installation, and long-term service support.
4. Electrical Service & Maintenance: Fees for electrical service work including new installations, repairs, system upgrades, and ongoing maintenance for residential, commercial, and industrial clients.
5. Plant Shutdown Support Services: Fees for planned and emergency plant shutdown support including critical maintenance, system upgrades, and repair services at ethanol, manufacturing, and industrial facilities.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

Sentry is a self-performing general contractor and design-build construction firm that delivers mechanical, electrical, structural steel, manufacturing, controls & automation, and crane & trucking services through in-house divisions. The company executes commercial, industrial, agricultural, municipal, and renewable energy projects across South Dakota and the Midwest, and operates as a certified dealer for Brock Grain Systems, Chief Agri, Reinke Irrigation, and Nucor Steel Buildings.

Product overview

Sentry is a self-performing general contractor and design-build construction firm operating as a single unified platform with multiple in-house service divisions and certified product line partnerships. The company delivers concept-to-completion construction services through its core divisions: General Contracting, Electrical, Mechanical, Manufacturing, South Dakota Service, Controls & Automation, and Workover. Additionally, Sentry operates as a certified/authorized dealer for third-party product lines including Brock Grain Systems, Chief Agri, Reinke Irrigation, and Nucor Steel Buildings. The portfolio is unified by self-performing construction capabilities where the company's own trades teams execute key scopes of work, providing single-source accountability from design through long-term service.

Differentiator

Problem solved

Functional benefit

Products and services

• General Contracting Full-service general contracting including architectural design, construction manager at risk (CMAR), design-build, engineering, and project management services for commercial, industrial, agricultural, and municipal clients.
• Electrical Services Electrical design-build, engineering, maintenance, service, system upgrades, retrofits, and low-voltage systems including motor controls and drives for residential, commercial, and industrial clients.
• Mechanical Services Commercial plumbing, HVAC installation, hydronic systems, and facility upgrades and renovations delivered by Sentry's in-house mechanical crews.
• Manufacturing and Fabrication Services Custom manufacturing, assembly and systems integration, CNC machining, fabrication and welding (MIG/TIG), structural steel and miscellaneous metals, paint finishing and coatings, and service, maintenance, and repair.
• Controls and Automation Services Control system design, custom control panels (UL-listed OEM), PLC/HMI/SCADA programming, systems integration and modernization, and testing, commissioning, and startup for industrial automation projects.
• South Dakota Service Division Crane and trucking services, fabrication services, irrigation and system services, MIG/TIG/Arc welding, millwright services, mobile welding, PEMB erection, preventive maintenance, plant shutdowns, and roll-off container services.
• Emergency Services 24/7 emergency response for mechanical, electrical, welding, crane service, trucking, and shutdown support across industrial and agricultural facilities.
• Workover Services Oilfield workover services for the upstream energy sector.
• Brock Grain Systems Certified dealer for complete grain storage, handling, drying, and conditioning systems including system design, certified installation, electrical and controls integration, and service and upgrades.
• Chief Agri Systems Certified dealer for grain storage, conditioning, and material handling systems including system design, certified installation, electrical and controls integration, and service and upgrades.
• Reinke Irrigation Systems Certified dealer for center pivot and lateral irrigation systems with remote monitoring, GPS guidance, and variable-rate technology including system design, installation, commissioning, and service and repair.
• Nucor Steel Buildings Authorized dealer for pre-engineered metal buildings (PEMBs) including design coordination, certified erection, full trade integration, and modifications and service.

Quantifiable outcome

• 500+ jobs completed across all markets
• +3 more outcomes

Named customers18 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Four partnerships are on record, tiered core.

• Brock Grain SystemscoreChannel Partner/ Reseller/ DistributorSentry is a Certified Independent Brock Grain Systems Dealer, supplying and installing complete grain storage, handling, drying, and conditioning systems across the Midwest. Sentry provides system design, certified installation, electrical integration, custom Controls & Automation panels, crane service, and long-term service and warranty support.
• Chief Agri SystemscoreChannel Partner/ Reseller/ DistributorSentry is a Certified Chief Agri Dealer, supplying and installing complete grain storage, conditioning, and material handling systems. Services include system design, certified installation, electrical and controls integration by Sentry's in-house Controls & Automation division, and ongoing service and warranty support.
• Reinke IrrigationcoreChannel Partner/ Reseller/ DistributorSentry is a certified Reinke Irrigation dealer, supplying and installing complete center pivot and lateral irrigation systems with remote monitoring, GPS guidance, and variable-rate technology. Sentry handles system design, mechanical and electrical installation, commissioning, operator training, and ongoing service and repair.
• Nucor Building SystemscoreChannel Partner/ Reseller/ DistributorSentry is an authorized Nucor Building Systems dealer, supplying and erecting pre-engineered metal buildings (PEMBs) for commercial, industrial, agricultural, and municipal applications. Services include design coordination, certified erection, full trade integration (electrical, mechanical, controls), and modification/service support.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Journey Group: Sioux Falls, SD-based self-performing general contractor serving commercial, industrial, and infrastructure markets across the upper Midwest. Comparable mid-market self-perform construction model and overlapping geographic footprint with Sentry.
• The Boldt Company: Wisconsin-based self-performing general contractor with strong industrial, healthcare, and power market presence. Closely comparable in self-perform construction model and integrated trade capabilities.
• Miron Construction: Neenah, Wisconsin-based self-performing general contractor and construction manager serving commercial, industrial, and institutional markets. Comparable scale and self-perform delivery model.
• Ames Construction: Burnsville, Minnesota-based heavy civil and industrial contractor self-performing earthwork, structural, and mechanical scopes. Comparable self-perform model and Midwest regional focus with industrial customer overlap.
• Faith Technologies: Menasha, Wisconsin-based electrical and automation contractor with in-house prefab, controls, and industrial systems integration. Directly comparable to Sentry's Electrical and Controls & Automation divisions in target customers and capabilities.
• Gray Construction: Kentucky-based design-build general contractor specializing in food/beverage, manufacturing, and distribution facility construction. Comparable custom automation integration and self-perform industrial construction model.
• Vessco: Minnesota-based industrial automation and systems integrator serving water/wastewater, food/beverage, and manufacturing clients. Directly comparable to Sentry's Controls & Automation division in custom control panels, SCADA, and integration scope.

Broad incumbents

• Mortenson: Minneapolis-based national construction firm with deep self-perform capabilities across wind, solar, civil, and industrial markets. Operates at significantly larger scale than Sentry but competes for similar wind/biogas and industrial construction opportunities in the Midwest.
• Burns & McDonnell: Kansas City-based 100% employee-owned engineering, architecture, construction, and consulting firm. Operates at significantly larger scale and competes with Sentry for industrial, water, and renewable-energy EPC opportunities in the Midwest.

Market position

Strengths4 records

Weaknesses5 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@sentry4071
• Facebookfacebook.com/profile.php
• LinkedInlinkedin.com/company/sentry-crane-services
• Instagraminstagram.com/sentryusa
• Xx.com/sentry40461238

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sentry