Prometheus Construction

What Prometheus Construction does

Prometheus Construction is a privately held specialty geotechnical contractor founded in 2002 and headquartered in Kapolei, Hawaii, with a secondary office in Santa Barbara, California. The company provides stabilization and earth-retention construction services to public and private property owners, commercial developers, and government/public works clients across Hawaii and the western United States. Its service portfolio spans shotcrete and gunite application, soil nail wall construction, rock scaling and boulder demolition, hydroseeding and erosion control, retaining wall construction and repair, rockfall protection fences and impact barriers, anchored mesh and drapery systems, rock bolts/anchors/micropiles, sea wall repair, and difficult-access construction.

The company's technical platform centers on geotechnical stabilization methods, including tension-resisting soil nailing systems, corrosion-protected ground anchors (stainless steel threadbar pins, triple-corrosion protected structural tie-backs, hot-dipped galvanized hollow-core MAI bar soil nails), ACI-certified shotcrete/gunite application in both wet and dry mix processes, and rockfall protection fences rated up to 8,000 kilojoule boulder impact. Prometheus invests in specialized capital equipment including a 45-ton crane, helicopters, and specialty drilling rigs that enable work on cliffs, shorelines, confined spaces, and remote sites through rope access, high-angle techniques, and helicopter-supported installations. The firm has installed galvanized rockfall mesh drapery systems in Hawaii and the western US for over 20 years.

Prometheus operates a project-based, quote-driven business model, offering free on-site consultations and cost proposals. Revenue is generated entirely through professional services fees from geotechnical construction projects, with no recurring subscription or product revenue. The go-to-market motion is direct enterprise field sales targeting property owners, contractors, and government entities across Hawaii and the western US, supported by a content-marketing website and inbound phone/email contact. The firm collaborates closely with geotechnical engineers for risk analysis and permitting and maintains partnerships with rockfall protection fence manufacturers and concrete/shotcrete material suppliers. The company is founder-led by Cliff Tillotson (Owner, VP, Chief Estimator) and operates with 11-50 employees.

Name

Prometheus Construction

Legal name

Prometheus Construction

Website

https://prometheusconstruction.com

Company type

Private

Founded year

2002

Operating status

Operating

Headcount range

11–50 employees

Short description

Prometheus Construction is a privately held Hawaii-based geotechnical contractor founded in 2002 that delivers rockfall mitigation, shotcrete, soil nail walls, erosion control, retaining walls, and difficult-access construction to property owners, commercial clients, and public works agencies across Hawaii and the western United States.

Ownership category

akta.pro rank

Product category

Geotechnical Construction Services

NAICS

Site Preparation Contractors (238910)

SIC

Construction - Special Trade Contractors (1700), Heavy Construction Other Than Bldg Const - Contractors (1600)

akta.pro primary industry

Slope Stabilization & Landslide Mitigation (Soil Nailing, Shotcrete, Reinforced Slopes) (IMAFAOAI)

akta.pro secondary industries

Breakwaters, Seawalls & Coastal Defense Structures (IMAFAJAC), Mass Excavation & Bulk Earthmoving (Cut/Fill, Grading) (IMAFAKAC)

Keywords

• Geotechnical construction services
• Erosion control services
• Rockfall mitigation systems
• Retaining wall construction
• Earth stabilization services

Headquarters

HQ city

Honolulu

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Supply Chain, Operations, Infrastructure, Marketing or Sales

Revenue model

1. Construction Services: Revenue generated from specialized geotechnical construction and stabilization services including erosion control, rockfall mitigation, retaining walls, shotcrete applications, drilling, anchoring, and micropile installations. Services range from small residential projects to large commercial and public works contracts.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels2 records

Core offering

Prometheus Construction is a specialized geotechnical construction contractor that stabilizes earth and mitigates hazards for public and private property owners in Hawaii and the western United States. Its core offerings include shotcrete/gunite application, soil nail wall installation, rock scaling and boulder demolition, hydroseeding and erosion control, retaining wall construction and repair, rockfall fences and impact barriers, anchored mesh and drapery systems, rock bolts/anchors/micropiles, and sea wall repair — including difficult-access projects on cliffs, shorelines, and remote sites.

Product overview

Prometheus Construction is a construction services company offering a unified portfolio of earth stabilization and geotechnical services for residential, commercial, and public works projects in Hawaii and the western United States. The core offering centers on erosion control, rockfall mitigation, and structural stabilization, delivered through specialized services including Shotcrete/Gunite application, Soil Nail Walls, Scaling Rock Demo, Hydro Seeding & Erosion Control, Retaining Walls, Rockfall Fences & Impact Barriers, Anchored Mesh and Drapery, Rock Bolts/Anchors/Micropiles, Sea Wall Repair, and Difficult Access services. These services are deployed together on projects—shotcrete is used within soil nail wall and sea wall installations; rockfall fences incorporate anchors and mesh drapery; and difficult access capabilities enable deployment of multiple services on challenging terrain. The company operates from Hawaii (Kapolei, Oahu) and California (Santa Barbara) offices, serving clients since 2002.

Differentiator

Problem solved

Functional benefit

Products and services

• Shotcrete / Gunite ACI-certified shotcrete and gunite application services for erosion control, hillside stabilization, tunnel reinforcement, and wall reinforcement; the firm pumps its own materials for precise quality control in both wet and dry mix processes and can stain and sculpt concrete to match surrounding environments.
• Soil Nail Walls Earth retention solutions using tension-resisting nails for slope stabilization, including drilling, grout insertion, drainage strips, wire reinforcement, and shotcrete application that can be sculpted, painted, stained, and textured to match existing landscapes.
• Scaling Rock Demo Rock scaling and boulder demolition using trained rock scalers to safely remove unstable rocks and boulders, including risk analysis collaboration with geologists and geotechnical engineers and permit acquisition for hillside properties.
• Hydro Seeding & Erosion Control Erosion control solutions including hydroseeding for dust control and hillside revegetation, erosion matting installation with anchored fiber matting technology, and large-scale landscaping using trees, grasses such as vetiver, and temporary irrigation systems.
• Retaining Walls Construction and repair of various retaining wall types including Pour-In-Place, Soldier Pile, GRP (grouted rubble paving), Keystone Block, Natural Rock, and MSE (mechanically stabilized earth) gravity walls, with all installations including subsurface drainage systems.
• Rockfall Fences & Impact Barriers Rockfall protection fences with capabilities up to 8,000 kilojoule boulder impact, including concrete foundations, base plates, steel columns, steel ring nets, chainlink mesh netting, anchor ropes, brake-away rings, and ground anchors, all corrosion protected.
• Anchored Mesh and Drapery Rockfall net and mesh slope systems using galvanized rockfall mesh under ring or cable net drapery installation; heavy drapery hinders and slows rock/boulder falls while lighter rockfall wire mesh is used for less demanding applications, installed via crane or helicopter.
• Rock Bolts, Anchors, Micropiles Installation of corrosion-protected ground anchors and micropiles ranging from stainless steel threadbar pins to triple-corrosion protected structural tie-backs and hot-dipped galvanized hollow-core MAI bar soil nails, including proof-testing and tensioning capabilities.
• Sea Wall Repair Engineering and construction of sea wall repair solutions for Hawaii's coastal conditions, including concrete reconstruction, shotcrete reinforcement, void fill, grouted rubble paving, drainage improvements, and anchoring to address wave energy, tidal fluctuation, corrosion, and soil loss.
• Difficult Access Construction Services Complex construction in locations with limited access, steep terrain, or where conventional equipment cannot operate, with capabilities including rope access, high-angle work, helicopter-supported installations, crane mobilization, specialty drilling equipment, and custom access solutions.

Quantifiable outcome

• Significant time and financial savings for soil nail wall clients compared to other expensive shoring solutions

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Three partnerships are on record, tiered core and minor.

• Geotechnical EngineerscoreStrategic or Co-development PartnerPrometheus works closely with geotechnical engineers for risk analysis and acquiring building permits for hillside properties. They collaborate on project design and implementation for rockfall protection and slope stabilization projects.
• Rockfall Protection Fence ManufacturerscoreTechnology or IntegrationPrometheus works closely with several manufacturers of rockfall protection fence systems, installing all types of rockfall protection fences with capabilities up to 8,000 kilojoules boulder impact.
• Concrete and Shotcrete Material SuppliersminorOthersPrometheus works closely with suppliers to deliver the perfect mix on time, including admixtures and aggregates for specific shotcrete needs and designs.

Scale indicators5 records

Recent moves1 record

Expansion highlights5 records

Emerging players

• Helitech: Foundation repair and waterproofing contractor with growing expertise in structural stabilization and earth retention. Comparable on stabilization-adjacent services though more focused on residential foundation repair than large-scale geotechnical.
• Yogi Contracting: Specialty contractor focused on slope stabilization, rockfall mitigation, and difficult-access installations. Comparable emerging specialist in the same difficult-access stabilization niche as Prometheus.

Others

• Geobrugg: Global manufacturer and installer of rockfall protection systems, slope stabilization mesh, and debris flow barriers. Directly adjacent as both a potential partner (Prometheus already works with rockfall fence manufacturers) and an emerging competitor on system installation.
• Maccaferri: International provider of gabion, retaining wall, and rockfall mitigation solutions. Adjacent through wall systems and erosion control product overlap with Prometheus's retaining walls and erosion control services.

Direct peers

• Schnabel Foundation Company: Specialty geotechnical contractor providing earth retention, slope stabilization, underpinning, and ground improvement. Highly comparable service stack including soil nailing, micropiles, and tiebacks for both private and public owners.
• Ropeworks Access Solutions: Rope-access and difficult-access construction firm providing rockfall mitigation, slope stabilization, and high-angle installations. Comparable in the difficult-access and rockfall mitigation niche, especially in mountainous western US terrain.
• GeoStabilization International: National specialty contractor focused on landslide repair, rockfall mitigation, slope stabilization, and ground improvement. Closest direct competitor in terms of service portfolio (soil nailing, shotcrete, micropiles, rockfall systems) and access-driven difficult-site work.
• Access Limited Construction: Specialty contractor focused on difficult-access and high-angle construction services including rockfall mitigation, slope stabilization, and rope-access installations. Closely comparable to Prometheus's difficult-access and rockfall niche with similar crew capabilities.

Broad incumbents

• Hayward Baker (Keller Group): One of the largest North American geotechnical contractors, offering ground improvement, slope stabilization, and earth retention as part of a much broader portfolio. Overlaps directly with Prometheus's soil nail, micropile, and anchoring services but at national scale under a global parent (Keller Group).
• CASE Foundation Company: Specialty foundation and ground improvement contractor offering micropiles, anchors, and earth retention. Comparable on the deep foundation and anchoring side though with a broader portfolio and larger geographic footprint.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Prometheus Construction