What Glasgow Contractors does

Glasgow Contractors is a privately held, family-owned civil construction firm based in Albany, Auckland, specialising in environmental enhancement and watercourse remediation across New Zealand. Founded in 2006 by Cole Glasgow as a two-person, single-digger operation, the company has grown into a specialist contractor offering six integrated service lines: Stream Works, Wetland Restoration, Pond Maintenance, Fish Passages, Stormwater Infrastructure, and Civil & Site Works. Its operational differentiator is a fleet of specialist amphibious toolcarrier equipment and proprietary desilting/sediment-removal methodologies that enable year-round work in sensitive live watercourses with minimal environmental footprint — a capability few competitors in New Zealand can replicate.

The company generates revenue through project-based contracts awarded by local government, public entities (including iwi), private companies, and individual residents. Pricing is quote-driven and bespoke per project, with no standardised tiers publicly disclosed. Its go-to-market is enterprise field sales: Glasgow relies on direct relationships with regulators, council procurement teams, local iwi, and trusted subcontractors to secure and scale projects. Marketing is relationship-led, supplemented by a content website and active community engagement (notably planting over 10,000 native plants in partnership with Restore Hibiscus & Bays and Kaipātiki Project).

Glasgow Contractors is led by three Directors — founder Cole Glasgow, his brother Kade Glasgow (Chartered Accountant, formerly PwC and ASB Bank) who manages finance, H&S and compliance, and Oliver Ferrick, a design-and-construction engineer specialising in stormwater and ecological engineering. The company maintains CCNZ membership, Impac prequalification, Site Safe and ConstructSafe certifications, and won the CCNZ Excellence in Sustainability award. Headcount sits in the 11–50 range with operations spanning both the North Island (headquarters) and South Island (led by South Island Manager Ryan Adam).

Name

Glasgow Contractors

Legal name

Glasgow Contractors

Website

https://glasgow.co.nz

Company type

Private

Founded year

2006

Operating status

Operating

Headcount range

11–50 employees

Short description

Glasgow Contractors is a New Zealand-based, family-owned civil contractor specialising in stream restoration, wetland and pond maintenance, fish passages, and stormwater infrastructure. It serves local government, iwi, and private clients using proprietary amphibious equipment to operate in sensitive live watercourses.

Ownership category

akta.pro rank

Product category

Environmental Civil Construction Services

NAICS

Water and Sewer Line and Related Structures Construction (237110), Utility System Construction (2371), Other Heavy and Civil Engineering Construction (237990)

SIC

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

akta.pro primary industry

Stormwater & Drainage Infrastructure Construction (Sewer, Detention, Outfalls) (IMAFAGAF)

akta.pro secondary industries

Water Reuse & Reclamation Infrastructure Construction (Recycled Water Systems) (IMAFAGAH), Water & Wastewater Pipeline Construction (Mains, Force Mains, Interceptors) (IMAFAGAC), Storage & Conveyance Structures (Reservoirs, Tanks, Culverts, Tunnels) (IMAFAGAE)

Keywords

• Environmental civil construction
• Wetland restoration services
• Stormwater infrastructure contracting
• Pond maintenance dredging
• Stream remediation works

Headquarters

HQ city

Auckland

HQ country

New Zealand

HQ region

Oceania

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Environmental Enhancement Civil Works: Project-based civil works contracting for environmental enhancement including stream restoration, wetland construction, pond maintenance, fish passage remediation, and stormwater drainage projects. Revenue is generated through project contracts with local government, public entities, private companies and residents.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Glasgow Contractors is a New Zealand environmental enhancement civil contractor that delivers stream remediation, wetland construction and desilting, pond dredging and sediment removal, fish passage remediation, stormwater drainage infrastructure, and traditional civil works such as bulk earthworks, retaining walls and footpaths. The company uses specialist amphibious machinery and proprietary desilting techniques to operate in sensitive waterways and live watercourses year-round with minimal environmental impact. Projects are delivered as integrated offerings that often combine multiple service lines for local government, public entities and private clients throughout New Zealand.

Product overview

Glasgow Contractors offers a unified suite of environmental enhancement civil construction services, not a software platform. The portfolio comprises six core service lines: Stream Works (stream remediation, outfall construction, soft/hard engineering), Wetland Restoration (wetland building, enhancement, desilting), Pond Maintenance (pond dredging, sediment removal, forebay/outfall construction), Fish Passages (fish ladder/baffle installation, barrier removal), Stormwater Infrastructure (drainage pipes, manholes, culverts, CCTV inspections), and Civil & Site Works (bulk earthworks, retaining walls, footpaths, bridges). These services are delivered as an integrated offering using specialist excavation and amphibious machinery, with projects often combining multiple service types.

Differentiator

Problem solved

Functional benefit

Products and services

• Stream Works Remediation and construction of streams and outfalls for local government, public entities and private clients, including soft engineering techniques (cross-vein weirs, root wads, revetment walls), permanent structures (timber retaining walls, wing walls, rock toe armouring, gabion walls), and stream restoration works such as daylighting, floodplain reconnection and fish passage reinstatement.
• Wetland Restoration Building, restoring, enhancing and desilting wetlands that act as natural stormwater assets, filtering sediment, toxins, contaminants, nitrogen and excess nutrients while supporting wildlife and providing flood protection for local government and private clients.
• Pond Maintenance Stormwater pond restoration including desilting, sediment removal, forebay/spillway/outfall construction, stormwater inlet/outlet installation, and oxidation wastewater treatment pond dredging and desludging using amphibious equipment.
• Fish Passages Fish passage remediation through installation of fish ladders, culvert fish baffles, newbury rock riffles, flow modifiers and natural rock ramps to remove barriers and enable fish migration.
• Stormwater Infrastructure Drainage and stormwater infrastructure solutions including pipe renewals, manhole installations, culverts, inlets, outlets, outfalls, catch pits, CCTV inspections, and horizontal directional drilling for PE pipe installation.
• Civil & Site Works Traditional civil works including bulk excavations, earthworks, site preparations, pile drilling, retaining wall installations, footpath construction, concrete and asphalt laying, rock breaking, bridge construction, boardwalk construction and dam earthworks.

Segments3 records

Ideal customer profiles2 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.

• Restore Hibiscus & BayscoreStrategic or Co-development PartnerClose partnership for native tree planting and environmental restoration initiatives. Company has planted and donated over 10,000 New Zealand native plants through this partnership.
• Kaipātiki ProjectcoreStrategic or Co-development PartnerClose partnership for native planting and environmental restoration. Ongoing collaboration supporting community environmental initiatives.
• Auckland Rescue Helicopter TrustminorOthersProud supporter of Auckland Rescue Helicopter Trust, supporting communities through charitable donations.
• Special Children's ChristmasminorOthersSupporter of Special Children's Christmas charity initiative for children.
• Mates in ConstructionminorOthersSupporter of Mates in Construction mental health and support organization for the construction industry.

Scale indicators2 records

Recent moves8 records

Expansion highlights4 records

Direct peers

• Greenstone Contracting: NZ environmental and civil contractor specializing in stream restoration, wetland construction, and stormwater management. Closest direct comparable to Glasgow in niche environmental enhancement civil works within the NZ market.
• Brian Perry Civil: NZ specialist civil contractor (part of Fletcher Building) delivering water, energy, and infrastructure projects. Comparable to Glasgow in water infrastructure scope, with similar focus on earthworks, drainage, and environmental works, but at larger scale.
• Wilson Group: NZ-based civil construction and environmental contracting firm delivering roading, drainage, and water infrastructure. Comparable to Glasgow in environmental civil works and stormwater services at a similar mid-sized scale.

Broad incumbents

• Fulton Hogan: One of the largest Australasian civil contractors, providing infrastructure, land development, and water-related civil works across NZ and Australia. Directly comparable to Glasgow as a civil contractor active in NZ, though at vastly larger scale and broader scope including roads and utilities.
• McConnell Dowell: Australasian engineering, construction, and maintenance contractor with capabilities in water, marine, and environmental infrastructure. Comparable in civil contracting scope, especially around waterway and pipeline work, but operates at much larger scale.
• Downer Group: ASX-listed integrated services company with significant NZ civil infrastructure operations including water, transport, and environmental services. Comparable end markets to Glasgow (NZ councils, utilities) but vastly broader service portfolio and balance sheet.
• HEB Construction: Major NZ civil contractor delivering roading, water, and infrastructure projects across New Zealand. Overlaps with Glasgow in water/stormwater civil works but operates at significantly larger scale and a broader infrastructure portfolio.

Regional players

• Isaac Construction: South Island NZ civil contractor delivering civil works, drainage, and environmental projects. Comparable to Glasgow's civil and stormwater scope, with a regional (Canterbury) focus that overlaps with Glasgow's South Island operations.

Emerging players

• Landco Civil: NZ-based civil contractor specializing in land development, drainage, and environmental works. Comparable to Glasgow in mid-sized environmental/stormwater civil scope, particularly in the upper North Island market.
• Urbane Environmental: NZ environmental consultancy and contracting firm active in stream remediation, wetland restoration, and stormwater design. Comparable to Glasgow in environmental enhancement scope, with overlap in the Auckland council market.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/Glasgow-Contractors-100052890895858
• LinkedInlinkedin.com/company/glasgow-contractors

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 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 Glasgow Contractors