Jas. W. Glover
Jas. W. Glover is a privately held, vertically integrated Hawaii construction contractor and aggregates producer founded in 1935, operating quarries, ready-mix and asphalt plants on Oahu, Hawaii Island, and Kauai to serve government, military, and private-sector clients via competitive bidding and direct material sales.
- Company typePrivate
- Founded1935
- HeadquartersHonolulu, United States
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Jas. W. Glover does
Jas. W. Glover, Ltd. is a privately held, locally owned construction contractor and construction-materials manufacturer founded in 1935 in Honolulu, Hawaii. The company operates as a fully bonded and licensed (License Number ABC-3) general contractor, subcontractor, and material supplier, serving public-sector clients across federal, state, county, and municipal levels, as well as private-sector buyers and the military. Its core services span mass grading, site work, underground utilities, structural and architectural repairs, new construction, concrete and asphalt paving, and pavement repair — won primarily through competitive bidding.
The company's material business is vertically integrated from raw extraction through finished product delivery. It owns and operates multiple quarries and production facilities on three Hawaiian islands — including the Mana quarry and Hilo hot-mix asphalt plant on Hawaii Island, the Halfway Bridge and Mahaulepu quarries and a quarry/aggregate operation on Kauai, and the Sand Island facility on Oahu — producing crushed aggregates in various grades, ready-mix concrete, asphaltic concrete, grout, gunnite, cold patch, hollow tile block, precast concrete products (foundation blocks, parking bumpers, sewer manhole rings), and specialty items such as the proprietary Basaltic Termite Barrier (BTB). Operating subsidiaries — Black Plumeria LLC (Oahu aggregates), Glover Honsador LLC (Kauai quarry operations), and Black Maui Rose LLC (Maui asphalt production) — compartmentalize the geographically distinct lines of business.
Revenue is generated through project-based general contracting and subcontracting engagements (one-time awards per bid) and through transaction-based material sales from company quarries and plants directly to construction contractors and other buyers. Pricing is determined via competitive public-sector bidding for government work and direct negotiation for private-sector work; no published price list exists. The workforce of 11-50 employees includes second and third-generation family members, supporting continuity of operational expertise across the company's nearly 90-year history on Oahu, Hawaii Island, and Kauai.
Jas. W. Glover firmographics
Firmographics- Name
- Jas. W. Glover
- Legal name
- Jas. W. Glover, Ltd.
- Website
- https://gloverltd.com
- Company type
- Private
- Founded year
- 1935
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Jas. W. Glover is a privately held, vertically integrated Hawaii construction contractor and aggregates producer founded in 1935, operating quarries, ready-mix and asphalt plants on Oahu, Hawaii Island, and Kauai to serve government, military, and private-sector clients via competitive bidding and direct material sales.
- Ownership category
- akta.pro rank
Jas. W. Glover industry classification
Industry- Product category
- Heavy Civil Construction Services
- NAICS
- Cement and Concrete Product Manufacturing (3273), Other Concrete Product Manufacturing (327390), Crushed and Broken Limestone Mining and Quarrying (212312), Crushed and Broken Granite Mining and Quarrying (212313)
- SIC
- Heavy Construction Other Than Bldg Const - Contractors (1600), General Bldg Contractors - Nonresidential Bldgs (1540), Concrete Products, Except Block & Brick (3272)
- akta.pro primary industry
- Aggregate Processing & Value-Added Products (Washing, Screening, Asphalt/Concrete Aggregates) (IMAKAHAH)
- akta.pro secondary industries
- Trenching & Utility Excavation (IMAFAKAD), Granite Quarrying & Dimension Stone Fabrication (IMAKAHAD)
Keywords
Where Jas. W. Glover is headquartered
LocationHeadquarters
- HQ city
- Honolulu
- HQ country
- United States
- HQ region
- North America
Offices5 records
Markets served
Jas. W. Glover business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Supply Chain, Operations, Infrastructure, Marketing or Sales
Revenue model
- General Contracting Services: Project-based revenue from serving as a general contractor for public infrastructure, building construction, and private sector projects including grading, site work, underground utilities, structural repairs, and new construction.
- Material Supply - Aggregates and Concrete Products: Revenue from supplying crushed aggregates, ready mix concrete, asphaltic concrete, grout, gunnite, cold patch, hollow tile block, precast concrete products, and decorative rock products from company quarries and manufacturing facilities.
- Subcontractor Services: Revenue from providing specialized subcontracting services including concrete and asphalt paving, asphalt seal coating, and pavement repair.
Go-to-market motion1 record
Distribution channels2 records
Marketing channels1 record
Jas. W. Glover product offering
Product offeringCore offering
Jas. W. Glover, Ltd. is a Hawaii-based construction firm that operates as a general contractor, subcontractor, and construction material supplier. The company quarries basaltic rock and manufactures ready mix concrete, asphaltic concrete, hollow tile block, and precast concrete products while providing construction services including mass grading, site work, underground utilities, structural repairs, and new construction across Oahu, Hawaii Island, and Kauai.
Product overview
Jas. W. Glover, Ltd. is a construction company offering a unified portfolio of general contracting services and construction material products. The company operates as a general contractor, subcontractor, and material supplier across Hawaii. The product portfolio includes construction services (mass grading, site work, underground utilities, structural repairs, new construction, and paving) and three primary product lines: crushed aggregate products from multiple quarries, ready mix concrete, and asphaltic concrete. The company operates through several subsidiaries including Black Plumeria LLC, Glover Honsador LLC, and Black Maui Rose LLC, with quarries and production facilities on the islands of Oahu, Hawaii, and Kauai.
Differentiator
Problem solved
Functional benefit
Products and services
- Construction Contracting Services General contracting and subcontracting services for public infrastructure, building construction, and private sector projects including mass grading, site work, underground utilities, structural and architectural repairs, new construction, and concrete and asphalt paving. Licensed under License Number ABC-3.
- Crushed Aggregate Products Quality crushed aggregates supplied from multiple quarries in various grades from base course to masonry sand, including specialty products like Basaltic Termite Barrier (BTB) and number 3 rock for decorative rock gardens.
- Ready Mix Concrete Ready mix concrete produced from Mana Quarry in Hilo and Kona operations, used for foundation and construction projects including blue rock manufactured into ready mix concrete for west side Hawaii Island development.
- Asphaltic Concrete Asphaltic concrete manufactured from blue rock at Mana Quarry in Hilo, used for highway construction, road paving, and airport runway projects.
- Precast Concrete Products Precast concrete products manufactured at Mana Quarry in Hilo, including foundation blocks, parking bumpers, sewer manhole rings, grout, gunnite, cold patch, and hollow tile block.
- Basaltic Termite Barrier (BTB) Specialty crushed aggregate product only available from Glover on Kauai, serving as a proven termite deterrent for construction applications. Supplied from the Halfway Bridge Quarry in Puhi area.
- Decorative Rock Products Number 3 rock products from Mana Quarry and Halfway Bridge Quarry for decorative rock garden applications, along with quality sand and limestone aggregate from Mahaulepu Quarry in Poipu, Kauai.
Companies that use Jas. W. Glover
Customer profileNamed customers5 records
Segments4 records
Ideal customer profiles3 records
Jas. W. Glover technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Jas. W. Glover partnerships and signals
Strategic signalScale indicators4 records
Recent moves7 records
Expansion highlights3 records
Jas. W. Glover competitors and assessment
Company assessmentDirect peers
- Grace Pacific Corporation: One of Hawaii's largest paving, asphalt, and infrastructure contractors. Overlaps directly with Glover on hot mix asphalt, road construction, and state/county DOT work in the same island geography.
- Hawaiian Cement / HC&D (Heidelberg Materials): Operates quarries and concrete/cement terminals in Hawaii serving ready-mix, aggregates, and construction markets. Directly comparable vertically-integrated aggregates and concrete supplier in the same Hawaiian geography.
- Goodfellow Bros. General contractor active across Hawaii and the Pacific on heavy civil, site work, grading, and paving. Directly comparable on heavy/highway and site preparation bidding for government and private projects.
- Kiewit Pacific Co. Subsidiary of Kiewit operating in Hawaii on heavy civil, transportation, and federal/military infrastructure. Overlaps on DOT, FHWA, and military base work that Glover also pursues.
- Hawaiian Dredging Construction Company: Long-established Hawaii general contractor executing site work, underground utilities, grading, and building foundation work. Direct competitor for the same government and private construction bids.
- Albert C. Kobayashi, Inc. Hawaii-based general contractor performing site work, grading, paving, and underground utility installation. Comparable mid-sized local contractor bidding similar public-works projects in Hawaii.
- Isemoto Contracting Co., Ltd. Big Island, Hawaii-based contractor focused on site work, road construction, and paving. Direct competitor in the same Hilo market and adjacent state/county DOT projects.
- Road Builders Corp. Hawaii paving, road construction, and asphalt contractor. Overlaps on highway resurfacing, rehabilitation, and DOT work in the same geographies.
Regional players
- Tilton Pacific Construction / dck pacific construction: Hawaii-based general contractor and construction manager. Competitor for private and public building construction projects in Hawaii, though more building-skewed than Glover's heavy/paving mix.
Broad incumbents
- Vulcan Materials Company: Largest U.S. aggregates producer with extensive quarry, asphalt, and concrete operations. Relevant comparable for aggregate-processing economics and asphalt/concrete products that Glover also produces, though at vastly larger scale and mainland geographies.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks6 records
Key highlights7 records
Customer concentration
Jas. W. Glover social profiles
Digital presenceJas. W. Glover financial estimates
Financial estimateRevenue estimate
Valuation estimate
Jas. W. Glover leadership team
Management profileNumber of profiles
Jas. W. Glover subsidiaries and ownership
Company hierarchySubsidiaries3 records
Jas. W. Glover funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Jas. W. Glover M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Jas. W. Glover
What does Jas. W. Glover do?
Jas. W. Glover, Ltd. is a Hawaii-based construction firm that operates as a general contractor, subcontractor, and construction material supplier. The company quarries basaltic rock and manufactures ready mix concrete, asphaltic concrete, hollow tile block, and precast concrete products while providing construction services including mass grading, site work, underground utilities, structural repairs, and new construction across Oahu, Hawaii Island, and Kauai.
Is Jas. W. Glover a public or private company?
Jas. W. Glover is a private company. It is classified as family owned and is currently operating.
When was Jas. W. Glover founded?
Jas. W. Glover was founded in 1935. It employs 11 to 50 people.
Where is Jas. W. Glover based?
Jas. W. Glover is headquartered in Honolulu, United States, in the North America region.
How does Jas. W. Glover make money?
Three revenue lines are on record. General Contracting Services are the primary driver. The others are material Supply - Aggregates and Concrete Products and subcontractor Services.
Who are Jas. W. Glover's main competitors?
Direct peers on record are Grace Pacific Corporation, Hawaiian Cement / HC&D (Heidelberg Materials), Goodfellow Bros., Kiewit Pacific Co., Hawaiian Dredging Construction Company, Albert C. Kobayashi, Inc., Isemoto Contracting Co., Ltd. and Road Builders Corp.. Tilton Pacific Construction / dck pacific construction is listed as a regional player. Vulcan Materials Company is listed as a broad incumbent.
Does Jas. W. Glover have an API?
No public API is recorded for Jas. W. Glover.
What industry is Jas. W. Glover in?
Jas. W. Glover's product category is Heavy Civil Construction Services. Its primary akta.pro industry code is IMAKAHAH, Aggregate Processing & Value-Added Products (Washing, Screening, Asphalt/Concrete Aggregates), with a secondary code of IMAFAKAD, Trenching & Utility Excavation. Its NAICS code is 3273 and its SIC code is 1600.