Building a resilient and sustainable Caribbean

One project at a time.

SoualiGas B.V. is a specialized Dutch engineering & consultancy firm serving the Dutch Caribbean.
With the founders being born and raised on Sint Maarten, we bring together deep Caribbean island experience with Dutch engineering standards and systems thinking.

Our team combines over 24 years of structural engineering, construction management, project management, and cost estimation expertise with advanced environmental engineering, circular economy design, and project controls capabilities. We understand both the technical challenges and cultural context of delivering infrastructure projects in the Dutch Caribbean.

With a desire to bring our expertise back into the region, we aim to bridge the gap between small island governments, utilities, and international funding institutions, providing the technical expertise and project management capacity that makes complex infrastructure projects succeed.

Our Services

  • We provide hands-on project leadership or augment your team with specialized PM capacity.

    Services include:

    • Overall project management (planning, budgeting, team coordination, reporting)

    • Project coordination (interface management, schedule tracking, risk management, and budgeting)

    • Multi-disciplinary team leadership (engineering, environmental, social, financial)

    • Contractor and consultant management

    • Stakeholder engagement and communication planning

    • Progress monitoring and reporting (monthly reports, dashboards)

    • Carry out Joint Risk Assessments and Toolbox meetings

    • Draft or review work method statements.

    Typical deliverables: Project Management Plan, integrated schedule, progress reports, stakeholder communication plans, work method statements

    Ideal for: Governments managing complex programs, utilities implementing capital projects, and local engineering firms that need temporary support.

  • We can assist governments, utilities, engineering firms, and private developers turn project ideas into feasible proposals.

    Services include:

    • Pre-feasibility and feasibility studies for energy, water, and waste(water) projects

    • Needs assessment and stakeholder consultation

    • Technical options analysis and concept design

    • CAPEX and OPEX cost modeling

    • Financial and economic analysis (cost-benefit, NPV, IRR, sensitivity)

    • Environmental and social impact screening

    • Risk identification and mitigation planning

    • Decision matrix & Multi-criteria analysis (Footprint, efficiency, emissions, CAPEX, OPEX, etc.)

    Typical deliverables: Feasibility report, concept drawings, cost estimates, risk register, project planning

    Ideal for: Governments preparing capital investment programs, utilities exploring service expansion, developers seeking partners or permits.

  • We prepare tender documents that attract qualified contractors and enable fair, transparent procurement.

    Services include:

    • Preparation of tender documents (Instructions to Tenderers, contract conditions, technical specifications, BOQ, evaluation criteria)

    • Alignment with procurement regulations (Dutch public procurement, World Bank, Caribbean Development Bank, EU rules)

    • Contractor pre-qualification and market sounding

    • Tender document review and red flag identification (for contractors)

    • Clarification coordination during tender period

    • Bid evaluation support and tender report preparation

    • Contract negotiation assistance

    Typical deliverables: Complete tender package, evaluation matrix, tender evaluation report, contract award recommendation

    Ideal for: Governments and utilities procuring construction or services, contractors preparing competitive bids.

  • Independent technical representation protecting client interests throughout design and construction.

    Services include:

    • Design review and approval (architectural drawings, engineering plans, calculations, specifications)

    • Contractor performance monitoring and site inspections

    • Quality assurance and testing oversight

    • Progress verification and payment certification

    • Variation order review and negotiation

    • Claim evaluation and dispute resolution support

    • Commissioning and handover coordination

    • Defects liability period management

    Typical deliverables: Design review reports, site inspection reports, payment certificates, variation order recommendations, handover documentation

    Ideal for: Governments and utilities lacking in-house technical capacity, international lenders requiring independent oversight, private clients managing complex construction.

  • We implement structured project controls based on the Dutch GROTIK methodology, ensuring projects stay on scope, schedule, and budget.

    GROTIK = Geld (Budget), Risico (Risk), Organisatie (Organization), Tijd (Time), Informatie (Information), Kwaliteit (Quality)

    Services include:

    • Budget management and cost control (cashflow forecasting, commitment tracking, variance analysis)

    • Risk management (identification, assessment, mitigation planning, monitoring)

    • Organizational setup (roles, responsibilities, governance structure, decision protocols)

    • Time management (integrated scheduling, critical path analysis, delay analysis)

    • Information management (document control, communication protocols, reporting systems)

    • Quality management (quality plans, inspection and test plans, non-conformance management)

    Typical deliverables: GROTIK Control Plan, risk register, integrated schedule (MS Project), monthly control reports, dashboards (Power BI/Excel)

    Ideal for: Large infrastructure programs, multi-phase projects, complex public-private partnerships, projects with international financing

  • Accurate cost estimates are essential for budgeting, funding applications, and fair procurement. We provide detailed, defensible estimates based on 19+ years of construction experience.

    Services include:

    • Preliminary cost estimates for feasibility and budgeting (± 20% accuracy)

    • Detailed cost estimates and Bills of Quantities (BOQ) for tendering (± 10% accuracy)

    • Quantity take-offs from drawings and specifications

    • Unit rate development based on local market pricing

    • Cost benchmarking against comparable Caribbean projects

    • Value engineering and cost optimization workshops

    • Cost escalation and contingency analysis

    Typical deliverables: Cost estimate report, itemized BOQ (Excel), unit rate schedules, cost comparison tables

    Ideal for: Public bodies preparing budgets and funding requests, contractors evaluating project viability, clients verifying contractor pricing.

  • We coordinate multi-disciplinary design processes and prepare contract-ready technical documentation.

    Services include:

    • Civil and structural concept and basic design (roads, ports, utilities, buildings)

    • Preliminary layouts, cross-sections, and general arrangement drawings (AutoCAD, Civil 3D, Revit)

    • Technical specifications aligned with Dutch/NEN standards or international practice

    • Coordination with specialist engineers (geotechnical, electrical, mechanical, environmental labs)

    • Design reviews and third-party verification

    • Building Information Modeling (BIM) coordination for larger projects

    • Permit application support and regulatory coordination

    Typical deliverables: Concept design drawings, technical specifications, design basis report, BIM models (if applicable)

    Ideal for: Public works departments preparing tenders, utilities designing new facilities, developers needing permit-ready designs.

  • Safety is non-negotiable. We bring onshore & offshore-standard HSE practice to Caribbean infrastructure.

    Services include:

    • HSE plan development (Project Safety Plan, Environmental Management Plan)

    • Site HSE audits and inspections

    • Incident investigation and corrective action tracking

    • Permit-to-work system implementation

    • HSE coordination

    • Environmental monitoring and compliance verification (dust, noise, water quality, waste management)

    Typical deliverables: Project HSE Plan, inspection checklists, audit reports, incident reports, environmental monitoring data

    Ideal for: High-risk construction (ports, roads, energy infrastructure), projects with environmental sensitivities (coastal, protected areas), donor-funded projects requiring HSE compliance.

Sectors We Serve

    • Waste Management Consultancy

      • Support the full tendering process, including drafting technical requirements, evaluating bids, and acting as client representative during evaluation and contract negotiations.

      • Perform market research and early‑stage procurement scanning to identify suitable technologies, contractors, and off‑island recycling partners.

      • Develop conceptual designs for waste facilities and systems, including layout, flow of waste streams, and integration with existing infrastructure.

      • Identify and quantify synergistic opportunities such as installing solar PV on facility roofs to reduce operating costs and improve project bankability.

      • Analyse waste streams to determine which fractions have positive net economic value when exported for recycling versus those better suited for local reuse, recycling, or energy recovery.

      • Apply structured multi criteria analysis (MCA) to compare waste management scenarios and technologies.

      • Evaluate options on land footprint, CAPEX, OPEX, payback period, robustness and reliability, and emissions profile.

      • Assess each option’s ability to reduce overall system costs and align with or maximize relevant subsidy and incentive schemes.

    • Landfill remediation, closure, and gas extraction

    • Waste transfer stations, Waste separation, and Materials Recovery Facilities (MRF)

    • Waste-to-energy (gasification, anaerobic digestion, incineration feasibility)

    • Tire shredding and rubber crumb production

    • Marine litter and coastal cleanup programs

    • Decentralized wastewater treatment and reuse

    • Financial feasibility studies for treated water reuse

    • Sewerage network design and rehabilitation

    • Stormwater management and climate adaptation

    • Coral reef and land-based ecological protection via nutrient reduction

    • Desalination and water supply resilience

    • Solar PV, Wind Energy, Geothermal energy, and battery energy storage systems (BESS)

    • Waste-to-energy integration with power grids

    • HFO/Diesel displacement and hybrid mini-grids

    • Grid expansion and substation upgrades

    • Energy audits and efficiency programs

    • LCA

    • Road design, rehabilitation, and climate resilience

    • Port and harbour infrastructure (quays, breakwaters, dredging)

    • Airport infrastructure and drainage

    • Coastal protection and erosion control

    • Public buildings and community facilities

    • Integrated urban planning and climate adaptation

    • Green infrastructure and nature-based solutions

    • Environmental impact assessment (EIA) and permitting

    • Circular economy strategies and resource recovery

    • Stakeholder engagement and community consultation

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