STG

What STG does

STG Incorporated is a specialty general contractor headquartered in Anchorage, Alaska, founded in 1991 as St. George Construction in Kotzebue. The company delivers remote infrastructure construction services across Alaska, with roughly 90% of work executed in barge- and air-access-only locations and an active footprint in approximately 30 rural communities annually. Its integrated service portfolio spans wind turbine installation, bulk fuel system construction, communication tower erection, bridges and elevated walkways, waterfront and erosion mitigation, microgrids, civil construction, and specialty logistics. Operational subsidiaries Alaska Crane (crane rental and rigging with an owned fleet of 28- to 660-ton machines, several weatherized for minus 70 degrees Fahrenheit) and Terra Foundations (specialty pile foundations for permafrost and unstable substrates) provide self-performed capability across most project disciplines.

STG's business model is project-based and contract-driven. Revenue derives from competitive bidding on federal, state, and local government contracts (USACE, Alaska DOT, National Park Service), direct negotiation with electric cooperatives and Alaska Native Corporations, and oil and gas infrastructure work for clients such as Hilcorp Alaska and ConocoPhillips. Pricing is contract-specific with no public rate card. Go-to-market is enterprise field sales supported by a project showcase website, Facebook presence, and trade publication features rather than active marketing campaigns. Since September 2013, STG has operated as a subsidiary of Calista Corporation (an Alaska Native Corporation) within the Calista Brice holding line, providing access to Alaska Native Corporation procurement preferences and a broader portfolio of construction and environmental sister companies.

Name

STG

Legal name

STG Incorporated

Website

https://stgincorporated.com

Company type

Private

Founded year

1991

Operating status

Operating

Headcount range

51–100 employees

Short description

STG Incorporated is an Anchorage-based specialty contractor that delivers remote infrastructure construction services across Alaska, including wind energy, bulk fuel, communications, bridges, and pile foundations, serving government agencies, electric cooperatives, and energy companies from barge- and air-access-only locations.

Ownership category

akta.pro rank

Product category

Remote Infrastructure Construction Services

NAICS

Utility System Construction (2371), Power and Communication Line and Related Structures Construction (237130)

SIC

Heavy Construction Other Than Bldg Const - Contractors (1600), Water, Sewer, Pipeline, Comm & Power Line Construction (1623), Construction Machinery & Equip (3531)

akta.pro primary industry

Wind Farm EPC & Balance of Plant Construction (Civil, Electrical, Substations) (EUAMACAF)

akta.pro secondary industries

Civil & Site Works EPC (Earthworks, Roads, Drainage, Foundations) (EUAEADAA), Wind Balance-of-Plant EPC (Crane Pads, Turbine Foundations, Internal Roads) (EUAEADAI), Construction Management & General Contracting (EPCM, Scheduling, QA/QC, HSE) (EUAMAFAJ), Temporary Construction Utilities & Logistics (Laydown Yards, Temporary Power, Transport) (EUAMAFAL)

Keywords

• Remote construction services
• Wind turbine installation
• Pile foundation installation
• Crane services
• Civil construction

Headquarters

HQ city

Anchorage

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Infrastructure Construction Projects: General contracting and design-build construction services for remote infrastructure projects including wind turbines, communication towers, bulk fuel systems, bridges, and microgrids. Revenue is project-based, one-time per contract with potential for multi-year design-build engagements.
2. Crane Services: Crane rental and operator services through Alaska Crane subsidiary, offering heavy lift consultation, 3D lift planning, and certified crane operators ranging from 28 ton boom trucks to 660 ton crawler cranes.
3. Pile Foundation Services: Specialty pile foundation installation through Terra Foundations subsidiary, providing foundation solutions for bridges, walkways, schools, utilidors, and homes in rural Alaska.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels4 records

Core offering

STG Incorporated is a specialty general contractor delivering remote infrastructure construction services across Alaska, with approximately 90% of work conducted in barge- and air-access-only locations. The company self-performs wind turbine installation, bulk fuel system construction, communication tower erection, bridges and elevated walkways, microgrids, civil construction, and waterfront/erosion mitigation through its Alaska Crane and Terra Foundations subsidiaries. It integrates in-house specialty logistics, owned crane fleets ranging from 28 to 660 tons, and pile foundation capabilities to execute turn-key design-build projects for government agencies, electric cooperatives, Alaska Native corporations, and energy companies.

Product overview

STG Incorporated is a rural Alaska specialty contractor with over 30 years of experience, offering a comprehensive suite of infrastructure construction services. The company operates as a unified service provider combining multiple construction disciplines including wind turbine installation, bulk fuel system installation, civil construction, communication tower construction, crane services (via Alaska Crane subsidiary), microgrids, pile foundation installation (via Terra Foundations subsidiary), bridges and elevated walkways, waterfront and erosion mitigation, and specialty logistics. The core offering centers on remote infrastructure development in challenging Arctic and Western Alaska environments, with services ranging from 28-ton to 660-ton crane operations to pile driving in permafrost conditions. The company also recently announced the acquisition of Movable Ink, a content platform.

Differentiator

Problem solved

Functional benefit

Brands

• Alaska Crane: A fully operated crane service company offering crane and rigging services with an extensive fleet ranging in capacity from 28 to 660 tons and booms to over 400 feet. Serves construction, telecommunications, and energy development industries throughout rural and urban Alaska.
• Terra Foundations

Products and services

• Wind Turbine Installation Wind turbine installation services for remote Alaska communities, including constructability consultation, tower foundation and turbine installation, MET tower installation, civil and site access development, logistics management, transmission/communication line installation, integrity testing, system integration and calibration, and operations and maintenance. STG has installed approximately 80 percent of community-scale wind farms currently operating in Alaska.
• Bulk Fuel System Installation Bulk diesel fuel storage system construction services including prefabricated and field-fabricated construction, diked construction and tank installation, double-wall construction, and total renovation. STG has constructed more than 40 bulk fuel systems across Arctic and Western Alaska.
• Civil Construction Civil construction services adapted for rural Alaska conditions including erosion control, shoreline protection, ice and snow road construction, demolition, drilling and blasting, roads and pads construction, and underground utilities.
• Communication Tower Construction Turn-key design-build communication systems including microwave tower foundation and antenna installation, wireless monopile foundation and installation, remote module and repeater installation, waveguide and ice shield installation, wireless hardware installation, fiber optic support installation, and tower maintenance.
• Crane Services Crane and rigging services through Alaska Crane subsidiary, featuring a fleet ranging from 28-ton boom trucks to 660-ton crawler cranes with booms over 400 feet. Services include heavy lift consultation, 3D lift planning, and certified operators. Several cranes are weatherized to operate in temperatures as low as minus 70 degrees Fahrenheit.
• Microgrids Microgrid power system installation and interconnection services for remote Alaska communities, including ice road construction, drilling and blasting, pile foundations, and solutions for complex environmental and geographical challenges.
• Pile Foundation Installation Pile foundation installation services through Terra Foundations subsidiary, including driven and drilled steel piles, thermopiles and adfreeze piles, helical anchors and piles, micropiles, and concrete foundations for construction on permafrost, sand, silt, and shallow bedrock conditions.
• Bridges and Elevated Walkways Construction of bridges and elevated walkways in Alaska's wetland and waterway environments, featuring specialized foundation solutions for fish habitats, isolated communities, wildlife migration patterns, extreme tides, and weather conditions.
• Waterfront and Erosion Mitigation Waterfront construction and erosion control services including dock facilities construction and refurbishment, pile supported and floating facilities, sheet and soldier pile walls, concrete and rock armor revetments, and remote mooring point installations.
• Specialty Logistics Specialty logistics services for remote project execution including detailed logistics planning, coordination of barge and air-access transportation, and management of projects in locations with no road connections throughout Alaska.

Quantifiable outcome

• Zero lost time accidents on GCI TERRA three-year project
• +4 more outcomes

Named customers12 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Alaska CranecoreOthersAlaska Crane is a fully owned subsidiary of STG providing crane and rigging services with an extensive fleet and exceptional crane operators throughout Alaska. The subsidiary caters to construction, telecommunications, and energy development industries with cranes ranging from 28 to 660 tons.
• Terra FoundationscoreOthersTerra Foundations is a fully owned subsidiary of STG providing the most trusted and experienced specialty pile foundation installation company in rural Alaska since 2002. Services include driven and drilled steel piles, thermopiles, helical anchors, and passive refrigerated piles.
• Brice Marine and Brice Civil ConstructionminorStrategic or Co-development PartnerSister companies Brice Marine and Brice Civil Construction collaborated with STG on the Drift River Erosion Control project, working together with hydrologists and geotechnical engineers on one of STG's largest collaborative projects.
• Tetra TechminorStrategic or Co-development PartnerFire Island Wind project contracted under Tetra Tech, with STG performing crane work to erect 11 turbines for a 17.6 megawatt wind farm developed by Fire Island Wind (division of CIRI).
• Knik ConstructionminorChannel Partner/ Reseller/ DistributorKnik Construction contracted STG to build the elevated boardwalk connecting Tuntutuliak village to airport as part of runway construction project for Alaska Department of Transportation.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Brice Civil Construction: Sister company under Calista Brice holding line, providing heavy civil construction in Alaska with overlapping capabilities in remote site work and infrastructure, directly competing for similar federal and cooperative contracts.
• UIC Construction (Ukpeaġvik Iñupiat Corporation): Alaska Native Corporation construction arm with deep arctic construction expertise, overlapping on pile foundations, hospitals, and remote infrastructure similar to STG's work at Samuel Simmonds Memorial Hospital.
• Knik Construction: Alaska-based heavy civil contractor that partnered with STG on the Tuntutuliak Boardwalk; competes for similar Alaska DOT and remote infrastructure contracts across rural communities.
• ASRC Construction Holding Company: Alaska Native Corporation construction holding company with overlapping arctic infrastructure capabilities, federal contracting advantages, and similar customer base of energy cooperatives and government clients.
• Davis Constructors & Engineers: Major Alaska general contractor with comparable remote and rural Alaska project portfolio including commercial, civil, and infrastructure work, competing for similar state and federal contract opportunities.

Broad incumbents

• Granite Construction: Large publicly-traded heavy civil contractor with utility, renewable, and remote infrastructure capabilities across the U.S., representing a scaled competitor if STG expands outside Alaska.
• Kiewit Infrastructure: Major North American heavy civil and infrastructure contractor with significant wind EPC, utility, and energy infrastructure capabilities, competing for large-scale renewable balance-of-plant contracts.
• Quanta Services: Largest specialty contractor focused on electric and communications infrastructure including wind and renewable energy construction, with comparable microgrid and utility construction capabilities.
• MasTec: Diversified infrastructure construction company serving utility, communications, and energy markets with significant renewable energy construction capabilities analogous to STG's wind and microgrid work.
• Barnard Construction: Heavy civil contractor with experience in remote and environmentally sensitive projects including dams, bridges, and pipeline infrastructure, comparable to STG's complex remote project delivery model.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/STGAlaska
• Xx.com/STGAlaska
• LinkedInlinkedin.com/company/stg-incorporated

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries2 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 STG