What MOUNTAIN does

Mountain Ltd. is a U.S. telecommunications engineering services firm founded in 1979 in Maine by Joseph Hosmer and now operating as a division of System One Holdings, LLC following a 2013 acquisition. The company delivers end-to-end wireline and wireless engineering solutions to major telecom carriers, network operators, ISPs, tower companies, utilities, and government agencies, covering fiber optic design, FTTx deployment, network overbuilds, A&E design, structural engineering, fielding/pole surveys, drafting, permitting, environmental compliance, and regulatory filings (FAA/FCC). Its technology stack spans AutoCAD, Bentley, ESRI ArcMap, IQGeo (Certified Design Partner), 3GIS, QGIS, Vetro fiber management, and pole load analysis platforms, supported by in-house PE-stamped structural engineering capability. Mountain Ltd. maintains a national footprint through 50+ offices and field crews covering all U.S. regions, enabling rapid mobilization for both urban and rural telecom deployments.

The firm generates revenue through project-based professional services engagements and staff augmentation, placing W-2 employees with clients for short- or long-term assignments with payroll, compliance, and tax services bundled in. Its customer base is dominated by major RBOC/ILEC/CLEC entities and large wireless carriers, with additional exposure to utilities and government/municipal network projects. Mountain Ltd.'s go-to-market is direct enterprise field sales, leveraging decades-long carrier relationships and specialized permitting expertise across DOH/DOT, municipal, and pole authorities to win and retain large multi-year programs. The firm is led by President April Metivier (since 2000) and a senior team of VPs across Operations, Business Integration, Project Services, Strategic Development, and Engineering, with deep prior experience at Lumen Technologies, Qwest/CenturyLink, Ziply Fiber, and NebraskaLink.

Name

MOUNTAIN

Legal name

System One Holdings, LLC

Website

https://mountainltd.com

Company type

Private

Founded year

1979

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Mountain Ltd. is a U.S. telecommunications engineering services firm, operating since 1979 as a division of System One Holdings, delivering end-to-end wireline and wireless engineering, permitting, structural, and staff augmentation solutions to major carriers, utilities, and government agencies nationwide.

Ownership category

akta.pro rank

Product category

Telecommunications Engineering Services

NAICS

Power and Communication Line and Related Structures Construction (237130), Electrical Contractors and Other Wiring Installation Contractors (23821)

SIC

Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Telecom Tower & Mast Construction (Greenfield Builds, Foundations, Erection) (IMAFAIAC)

akta.pro secondary industries

Tower Upgrades & Structural Reinforcement (Height Extensions, Mods, Mounts) (IMAFAIAD), Structural & Civil Engineering for Sites (Design, Reinforcement, Foundations) (HDAIAKAI), Tower Operations & Maintenance (Field Services) (HDAIAKAF), Underground transmission & distribution cable EPC (civil + cable install) (EUADAKAB)

Keywords

• Telecom engineering services
• Wireline network design
• Wireless infrastructure engineering
• Fiber optic deployment
• Telecom permitting services

Headquarters

HQ city

New Gloucester

HQ country

United States

HQ region

North America

Offices8 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Services: Provides end-to-end telecom engineering solutions including wireline and wireless services. Revenue generated through project-based engagements for network planning, design, permitting, and construction support.
2. Staff Augmentation: Flexible telecom and wireless staffing solutions for short-term projects or ongoing assignments. Places skilled professionals with clients and handles W-2 payroll services including compliance, background checks, and tax withholdings.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Mountain Ltd. provides end-to-end telecommunications engineering solutions for wireline and wireless infrastructure. Services span fiber optic and FTTx design, network overbuilds, rights-of-way acquisition, permitting, drafting, structural engineering, A&E design, field surveys, environmental compliance, and regulatory filings for telecom carriers, utilities, and government entities nationwide. The firm also delivers flexible telecom staffing and W-2 payroll services through staff augmentation engagements.

Product overview

Mountain Ltd. is a telecommunications engineering firm offering a comprehensive suite of services organized around two core offerings: Wireline Services and Wireless Services. The Wireline Services portfolio encompasses detailed engineering, consulting, fielding/pole surveys, drafting, permitting, staff augmentation, and professional engineering modules covering fiber optics, FTTx, and network infrastructure. Wireless Services include A&E, structural engineering, field services, environmental, and regulatory modules for towers, DAS, small cells, and cellular systems. Both portfolios are supported by shared services including permitting, staffing, and professional engineering capabilities.

Differentiator

Problem solved

Functional benefit

Products and services

• Wireline Services End-to-end engineering solutions for cable and wireline telecommunications infrastructure serving major RBOC/ILEC/CLEC entities. Scope includes fiber optic design, FTTx deployment, network overbuilds, construction drawings, CLEC and long-haul design, rights-of-way acquisition, permitting, environmental studies, drafting, fielding/pole surveys, and professional engineering. Delivered as project-based engineering engagements with nationwide coverage.
• Wireless Services Engineering solutions for wireless telecommunications infrastructure including communication towers, cellular systems, public safety communications, distributed antenna systems (DAS), small cells, broadcast towers, and fiber backhaul installation. Backed by nearly 40 years of wireless experience and thousands of co-located sites, new builds, small cells, and modifications delivered in the past 5 years.
• Staff Augmentation Flexible telecom and wireless staffing solutions for short-term projects or ongoing assignments. Mountain places skilled professionals with clients and handles W-2 payroll services including compliance, background checks, and tax withholdings, supported by a permitting network spanning 50+ offices and 6,500 employees.

Quantifiable outcome

• Thousands of wireless co-located sites, new site builds, small cells, and modifications delivered in past 5 years

Named customers5 records

Segments5 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

One partnership is on record.

• IQGeocoreTechnology or IntegrationMountain Ltd. is an IQGeo Certified Design Partner, fully certified in the use of IQGeo Network Manager Telecom software to create efficient fiber designs that accelerate construction and enable long-term network management for broadband operators.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Quanta Services: Quanta Services (NYSE: PWR) provides infrastructure services for electric, gas, telecom, and renewable energy — its Communications segment competes with Mountain in telecom engineering and fiber deployment.
• Dycom Industries: Dycom (NYSE: DY) is a leading provider of specialty contracting services to telecom providers, including engineering, aerial/underground construction, and maintenance — a direct comparable in telecom engineering services at significantly larger scale.
• MasTec: MasTec (NYSE: MTZ) is a large publicly-traded infrastructure construction firm with a major Communications segment covering fiber, wireless, and tower engineering — overlapping with Mountain but at much larger scale and including full construction.
• Burns & McDonnell: Burns & McDonnell is a large engineering, architecture, and construction firm with significant telecom practice serving carriers, utilities, and tower companies — overlapping with Mountain's full-stack telecom engineering services.
• Black & Veatch: Black & Veatch is a global infrastructure engineering firm with a Telecom division covering fiber, wireless, and grid modernization — a broader incumbent that overlaps with Mountain's telecom engineering capabilities.

Direct peers

• CCI Systems: CCI Systems is a national telecom engineering and construction firm offering fiber network design, wireless site development, and permitting — overlapping nearly 1:1 with Mountain's wireline and wireless engineering services.
• Vantage Point Solutions: Vantage Point Solutions is a telecom engineering and consulting firm specializing in network design, regulatory, and outside plant engineering for rural carriers and utilities — directly comparable to Mountain's wireline engineering practice.
• Finley Engineering: Finley Engineering provides telecom and broadband engineering services including fiber network design, permitting, and construction management — closely matching Mountain's wireline and rural broadband engineering offerings.
• KGPCo (now part of GHD): KGPCo, now part of GHD, supplies turnkey network services to telecom carriers including engineering, materials, and deployment — directly comparable to Mountain's integrated wireline and wireless engineering model.

Emerging players

• TRC Companies: TRC Companies provides engineering, consulting, and construction management services for power, telecom, and environmental markets — overlapping with Mountain's environmental, regulatory, and engineering service modules.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/mountainltd
• LinkedInlinkedin.com/company/mountain-ltd-
• Instagraminstagram.com/mountainltd
• Xx.com/mountainltd

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 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 MOUNTAIN