Choosing project portfolio management software is a harder decision than choosing a project management tool, because you're not buying something to run one project; you're buying the system your organisation will use to decide which projects to run and how to steer the whole portfolio. Get it right and leadership gets a clear view of where effort and money are going. Get it wrong and you've bought expensive shelfware. This guide sets out what PPM software does, what to weigh when choosing it, and how to run the selection.

What PPM software does

Project management tools help you run individual projects. PPM software works a level up, managing the whole collection of projects and programmes as a portfolio. The core capabilities include:

Portfolio visibility

‍A single view of every project's status, health, and progress, so leadership can see the whole picture rather than chasing separate reports.

Resource management

‍See who's committed to what across all projects, spotting where the same people are overbooked, and balancing resource capacity against demand.

Demand and intake

‍Capture proposed projects, evaluating them, and deciding which to fund, so the portfolio is chosen deliberately rather than by whoever shouts loudest.

Strategic alignment

‍Connect projects to the organisation's strategic priorities, so you can see whether the portfolio reflects what the business is trying to achieve.

Reporting

‍Turn project and portfolio data into something decision-makers can act on, at project, programme, and portfolio level.

What to look for when choosing

Beyond the feature checklist, a handful of factors decide whether a PPM tool fits your organisation.

Capability at the right level

‍Match the tool to where your need is. Some organisations need strong project and resource management; others need portfolio and strategy capability on top. Buying enterprise strategic-portfolio features when you need solid resource management is as much a mistake as the reverse.

Integration with your existing tools

‍PPM software earns its value by pulling data from where work already happens. If your teams schedule in Microsoft Project, plan in Planner, or track in Jira, the PPM tool needs to integrate with those rather than force everyone onto a new way of working. A platform that consolidates data from the tools you already use will succeed where one that demands wholesale change will stall.

Deployment and data sovereignty

‍Where does your portfolio data live? For many organisations, especially in regulated or security-conscious sectors, the answer matters as much as the features. Some PPM platforms are separate SaaS products that hold your data on the vendor's infrastructure. Others deploy inside your own environment so the data never leaves your control. If data sovereignty is a real constraint for you, it should be an early filter, not an afterthought.

Scalability across tiers

‍Your needs will grow. A tool that lets you start with project and resource management and add portfolio and strategy capability as your PMO matures is easier to adopt than one that demands you buy the whole enterprise suite on day one.

Total cost and time to value

‍Licence cost is the visible number. The fuller picture includes implementation, training, integration, and how long before the tool delivers value. A cheaper tool that takes a year to bed in may cost more than a pricier one that's productive in weeks.

Deployment models and data sovereignty

An area that often receives less attention than it should it the deployment models and data sovereignty of a platform. However it's frequently a factor buyers don't give enough consideration to, and later regret.

PPM software holds sensitive data: your whole project portfolio, budgets, resourcing, and strategic priorities. Where that data sits is a governance question as much as a technical one. A standalone SaaS PPM platform stores your portfolio data on that vendor's cloud. For some organisations that's fine; for others, in government, finance, healthcare, or any regulated sector, having strategic portfolio data leave the organisation's own environment can be a problem.

The alternative is a platform that deploys inside your organisation's existing environment, so your data stays in your own tenant, under your own controls. For organisations already committed to a particular cloud (e.g. Microsoft 365), this can mean the PPM tool runs where the rest of their data already lives, with the same security and compliance posture. If your organisation has strict data-residency or sovereignty requirements, prioritise this early. Retrofitting it is painful.

PPM software and the Microsoft ecosystem

A specific version of the integration question comes up for the many organisations standardised on Microsoft. Microsoft offers its own tools, Planner and Project, and it's fair to ask whether you need anything else.

Microsoft's native tools are strong for planning and running projects, but where they hit limitations is that they're not built to give a PMO full portfolio and strategy-level management: consolidated portfolio visibility, cross-project resource optimisation, strategic prioritisation. A dedicated PPM platform complements the Microsoft tools rather than replacing them, adding the portfolio and strategy layer on top of the project-level planning Microsoft already does well. For Microsoft-committed organisations, a PPM tool built natively on the Microsoft platform, and deployed within their own Microsoft environment, keeps that complement close to the tools and data they already use.

How to run a PPM software selection

1. Define your requirements by level. Be specific about what you need at project, portfolio, and strategy level, and be honest about which you need now versus later.
2. Involve the right stakeholders. PPM procurement spans the PMO (the main users), IT (deployment, security, data sovereignty), and the C-suite (portfolio and strategy reporting). Each cares about different things; all three should be in the evaluation.
3. Shortlist against your real criteria. Weight the criteria that matter to your organisation, integration, deployment, the capability level you need, rather than a generic feature comparison.
4. Pilot before committing. Prove the tool on a subset of your portfolio. A demo shows you the tool at its best; a pilot shows you how it fits your reality.

Where Altus fits

Altus is a project portfolio management platform built natively on the Microsoft Power Platform and deployed inside your organisation's own Microsoft 365 environment, so your portfolio data stays in your tenant. It's structured in tiers, from project and team collaboration through PMO-level portfolio and resource management to strategic portfolio management, so you can start where your need is and grow into the rest. If the criteria in this guide, Microsoft-native deployment, data sovereignty, and portfolio capability that complements your existing tools, match what you're weighing, see how Altus handles project portfolio management.

Frequently asked questions

What's the difference between PPM software and project management software?
Project management software runs individual projects. PPM software manages the whole portfolio of projects and programmes, adding portfolio visibility, cross-project resource management, and strategic alignment on top.

Does Microsoft have PPM software?
Microsoft offers project and planning tools (Planner and Project), which are strong at the project level. For full portfolio and strategy-level management, organisations typically add a dedicated PPM platform that complements those tools.

What should PPM software integrate with?
The tools your teams already use to do the work, commonly Microsoft Project, Planner, and Jira. The value of PPM software comes from consolidating data across those, so integration is essential.

Why does data sovereignty matter for PPM software?
PPM software holds your whole portfolio's data, including budgets and strategy. For regulated or security-conscious organisations, keeping that data inside their own environment rather than on a vendor's cloud is a governance requirement, which makes deployment model a key selection criterion.