CAPEX budget control Phasing & gates Contract & forecast management

Custom investment project software development

Appfront builds custom software for managing large investment projects on the client side: CAPEX budget control, phasing with gate decisions, contract and contractor management, and progress tracking with forecasts across multi-year projects. It is designed for owners in infrastructure, energy, industry and real estate who invest capital and want to steer it. It is not the administration of the executing contractor, but the governance of the party commissioning the build and safeguarding the investment.

What is capital project software?

Capital project software, also known internationally as capital project management software, supports the client in controlling large capital projects. It covers four things at once: monitoring the CAPEX budget, moving through project phases with gate decisions, managing contracts with contractors and advisers, and tracking progress and forecasts over several years. The perspective is that of the owner investing capital, not of the party carrying out the work.

This is deliberately different from generic project management software, which focuses on tasks, schedules and team collaboration. For an investment project, the money is central: a work breakdown structure linked to the cost estimate, commitments and actual costs per component, contingency for uncertain scope, and a substantiated forecast of the completion date and final costs. It also differs from the administration of a construction company or a civil engineering contractor: those firms carry out the work, whereas this software serves the client side.

Standard project controls packages are powerful, but heavy and generic. A shadow administration in spreadsheets often grows up around gate decision-making, the contract register or management reporting. Custom software fits your gate model, your cost structure and your contract types, and integrates with existing systems where it makes sense. Read more about our broader custom software development and about a custom ERP system for the financial side.

One view of money and scope

Budget, commitments, actual costs and contingency in one coherent view, linked to the work breakdown structure. The project board steers on a single version of the truth instead of loose spreadsheets.

Gates as a workflow

Each phase ends at a gate with the required documents, estimates and approvals. The steering committee decides on the basis of the same criteria, and every decision is recorded with an audit trail.

Forecasting instead of hindsight

Using earned value management, the software calculates an estimate at completion, so you can see early whether a project is at risk of running over budget or behind schedule, rather than finding out only afterwards.

How we build software for your capital investment projects

We work step by step and involve your project controllers, contract managers and project directorate early on. From an exploration of your gate model, cost structure and contract types through to go-live and ongoing management, every step is aimed at software your team trusts and that allows the steering committee to direct a large capital investment project.

1
Discovery & scope

We map out your process: the phase and gate model, the cost estimate and work breakdown structure, the contract types with contractors and the existing source systems. Together we decide what the software does itself and where it integrates.

2
Design

We design the data model around budget, commitments, actual costs, contingency and forecast, plus the gate workflow, the contract register and the reporting layers for the project team and steering committee.

3
Build & iteration

We build in design and development sprints with automated tests and integrations with your source systems. You see working versions along the way and help set priorities and how well it fits in practice.

4
Go-live & management

Controlled go-live with data validation, followed by ongoing management, monitoring and further development as your portfolio grows or your gate model and contract types change.

What capital investment project software actually does

We tailor every application to your gate model, cost structure and contract types. Below are the features we most often deliver for clients managing large capital projects.

CAPEX budget control

Budget, commitments, actual costs and contingency for each element of the work breakdown structure. The software shows the difference between budget and spend, so margin does not quietly leak between estimate and realisation.

Phasing and gate decisions

The stage-gate or phase-gate model as a workflow: for each gate, the required estimates, documents and risks, with approval by the right decision-makers. This lets you control spending before the final investment decision is taken.

Contract and contractor management

A contract register for agreements with contractors and advisers, including payment schedules, additional and reduced work, changes and payment milestones. Set up to match your contract type, whether that is a UAV-GC or a FIDIC model.

Progress and forecasting

Progress measured with earned value management: cost and schedule variance, plus an estimate at completion for cost and time. This shows you early whether a multi-year project is drifting off course, so you can adjust in good time.

Risk and contingency

A risk register linked to the estimate: risks and their consequences translated into contingency and reserves. At each gate, the steering committee can see which risks could affect the budget or schedule and how provision has been made for them.

Portfolio and board reporting

Aggregated management information across multiple projects: budget spend, gate status, forecast and risk at portfolio level. This lets the project directorate support decisions to the board or council with the same figures the project team uses.

Who we build capital investment project software for

Large capital investment projects are steered by a range of clients, each with their own capital flows and gate models. For each of them we build software that fits their sector, their contract types and their accountability requirements.

Energy and grid operators

Grid operators and energy companies with large investment programmes in networks, generation and sustainability. They steer on multi-year CAPEX, gates and contractor agreements. See also our energy software.

Industry & process companies

Industrial producers with plant, expansion and turnaround projects. They need tight project controls, contingency management and a forecast per turnaround or new production line.

Infrastructure & public clients

Managers of roads, water, rail and public spaces, and public clients tendering large projects. For the executing side, see civil infrastructure software; here the focus is on the client's project governance.

Property owners

Owners and investors with large new-build and renovation programmes. They steer on investment budgets, gates and contracts. See also property development software for the development side.

Not yet sure about a large project?

Test your idea first: a working prototype in 1 day

With OneDayBuild, we turn your idea into something tangible in one day for €1,150, so you can see whether further development is worth the investment. Decide to go ahead with the full build? Then we credit the full cost.

Explore OneDayBuild →

Technology and integrations

We build on a modern, maintainable web stack and integrate with the systems already running in project controls. Think Oracle Primavera P6 for planning, Primavera Unifier, Hexagon EcoSys or InEight for cost and controls, and your ERP such as SAP for commitments and invoices. We don't build a copy of those packages; we integrate with them or fill the gaps they leave, such as a gate portal, a contract register or a board dashboard that follows your own way of working. Where there is no source system, we build the missing functionality to measure. See also our management reporting software.

Node.js / Python / .NET React / Vue front-end PostgreSQL / SQL database REST & web service integrations Oracle Primavera P6 Primavera Unifier / EcoSys InEight project controls SAP / ERP integration Earned value management Work breakdown structure AACE estimate structure OAuth 2.0 / SSO Role-based access control Audit logging BI & dashboard layers CI/CD pipelines

Why Appfront for your capital projects software?

Appfront builds custom software and always begins with a thorough analysis of your process: the gate model, the cost structure, the contract types and the systems you already use. Software for capital projects must not only work technically but also match the way your project board directs and accounts for its decisions.

We write clear documentation and work with transparent code, so your own team or a future supplier can understand and manage the software. No black box, but clear agreements on the data model, integrations, authorisation and administration. That way you stay in control of a system that often runs for years, just like the projects it oversees.

We work in design and development sprints, moving from discovery and planning through to development and maintenance. You see working interim versions along the way and help set priorities, so the software fits the day-to-day practice of your project controllers and contract managers.

Also take a look at our wider services: custom software development, custom project management software, a custom ERP system and estimating software. Questions? Get in touch.

  • Custom software built around your gate model and cost structure
  • CAPEX budget control linked to the work breakdown structure
  • Phasing and gate decision-making with an audit trail
  • Contract and contractor management aligned to your contract types
  • Forecasting with earned value management and estimate at completion
  • Integrations with Primavera, EcoSys, InEight and ERP
  • Clear documentation your team can read and manage
  • Design and development sprints with working interim versions
  • Portfolio and board reporting on one set of figures
  • Ongoing maintenance and further development

Security and governance for capital project software

Investment projects involve large sums, commercially sensitive contract terms and decision-making that must be traceable internally and, at times, externally. That is why we set up authorisation based on role and need, so a contractor or adviser only sees what relates to their role, while the full budget picture remains reserved for the project board. Every gate decision, contract change and budget movement is logged, so you can always trace who decided what, and when.

We build in line with the GDPR wherever personal data is involved, with encryption in transit and at rest, and we follow OWASP security standards. We document data flows, integrations and permissions, so your organisation can demonstrably stay in control of a system that sits at the heart of your investment decisions.

Read more about our security approach: information security policy and vulnerability disclosure policy. Discuss your situation without obligation via our contact form.

  • Role-based access and least-privilege principles
  • Separation of information between client and contractors
  • Robust audit logging of gates, contracts and budget movements
  • Encryption in transit (TLS 1.2+) and at rest
  • GDPR-compliant processing wherever personal data is involved
  • Built to the OWASP security standards
  • Documented data flows, integrations and permissions
  • Traceable decision-making for internal and external accountability

Frequently asked questions about investment project software

Answers to the questions we are asked most often about custom software for large investment projects.

Investment project software, also known as capital project management software, supports the client in managing large capital projects: monitoring the CAPEX budget, moving through phases with gate decisions, managing contracts with contractors and advisers, and tracking progress and forecasts across multiple years. It differs from generic project management software in that the emphasis lies on the money, scope and risk of an investment, rather than on individual tasks and calendars. Custom development lets you set this up according to your own gate model, cost structure and contract types.

Generic project management software focuses on tasks, schedules and collaboration within a team, and suits projects of any nature and size. Investment project software focuses specifically on the capital and investment side: a work breakdown structure linked to the cost estimate, budget control at CAPEX level, contingency, commitments to contractors, and a forecast of the end date and final cost. If you are looking for general team software, see our custom project management software; this page is about the client steering a major investment project.

This software is for the client, owner, or project and programme director who commissions the investment project and keeps CAPEX under control. It covers control of scope, budget, gates, contracts and forecast. The executing side, the administration of a construction firm or civil engineering contractor, is a different challenge, and we have separate solutions for it. Where necessary, we connect both worlds, for example for progress statements and progress reporting.

Large investment projects move through phases with decision points, a stage-gate or phase-gate model that releases spending in controlled steps before a final investment decision is made. The software models these phases and gates as a workflow: for each gate you record the required documents, estimates, risks and approvals, with an audit trail of who decided what, and when. This gives the steering committee control over the funnel from idea to delivery and keeps decision-making traceable.

Yes. We model the cost structure the way you use it, for example following the estimate classes of AACE International, and link budget, commitments, actual costs and contingency to the work breakdown structure. Using earned value management, the software calculates progress indicators and an estimate at completion, so you can see early whether a project is at risk of going off track on cost or time. We report against your own columns, not those of a standard package.

Many organisations already run specialised systems such as Oracle Primavera P6 for planning, Primavera Unifier, Hexagon EcoSys or InEight for project controls, and an ERP such as SAP for commitments and invoices. We don't build a copy of these. Instead, we integrate with them or fill the gaps they leave, for example a gate portal, an executive dashboard or a contract register that follows your own way of working. Where no source system exists, we build the missing functionality custom.

We build for clients and owners who carry out large capital projects themselves: grid operators and energy companies, industrial manufacturers with plant and turnaround projects, infrastructure managers and public clients, and property owners with extensive new-build and renovation programmes. In each case, these are parties that invest capital and want to steer it through budget control, gates, contract management and reliable forecasts.

Ready to build your investment project software?

Tell us how your investment project is set up and where you run into difficulties, from CAPEX budget control and gate decisions to contract and forecast management. We are happy to think along with you on process, integrations and governance. In a no-obligation first conversation, you'll get a clear picture of what custom software can do for the way you steer large projects.

Edit content