It's a question we hear constantly from engineering leaders across automotive, aerospace and manufacturing businesses: "If Creo and Onshape are both PTC CAD platforms, why would we need to think about both? Shouldn't we just pick one and standardise?"
It's a sensible instinct. Standardisation reduces admin overhead, simplifies training and keeps IT happy. But in our experience helping UK engineering teams choose and implement the right CAD strategy, the honest answer is rarely as tidy as "just pick one." More often, the right platform depends on the nature of the work itself, not on a preference for simplicity.
Here's how we'd frame the decision for teams weighing up Creo against Onshape, or wondering whether they actually need both.
Complexity, not company size, is what drives the decision
It's tempting to assume that platform choice tracks company size: smaller businesses use lighter tools, larger ones use heavyweight ones. In practice, that's rarely how it plays out. We've worked with small, highly specialised engineering teams whose products demand every ounce of Creo's depth, and equally with larger organisations running fast-moving product lines that are perfectly served by Onshape's cloud-native simplicity.
The real driver is the complexity of what's being designed, not the size of the team designing it. Large assemblies, advanced manufacturing processes, simulation-led design and multi-variant product optimisation all point toward one set of priorities. Fast iteration, distributed collaboration and minimal IT overhead point toward another. Most engineering organisations will recognise elements of both somewhere in their business.
When depth and precision are non-negotiable: Creo
For engineering teams working on complex, highly engineered products, Creo remains the platform built for the job. Its strength lies in handling scale and precision without forcing a trade-off between design, simulation and manufacturing readiness. Where a product's engineering demands are genuinely rigorous, whether that's aerospace structures, safety-critical automotive components, or precision medical devices, Creo's maturity and depth are difficult to substitute.
This is also where Creo's four-decade engineering lineage matters. It was built for organisations that need to trust every dimension, tolerance and simulation result at scale, and that trust doesn't come from a lighter-weight tool bolting on extra features later.
When speed and collaboration matter most: Onshape
For mainstream product development, where the priority is moving quickly from concept to production-ready design, Onshape changes the equation. Because it's built on a genuinely cloud-native architecture, there's no software to manage, no version conflicts to chase down, and no maintenance windows to plan around. Everyone on the team works from the same up-to-date design data, in real time, from wherever they happen to be.
That's not a compromise version of CAD. It's a professional-grade platform built around a different set of priorities: agility, distributed collaboration and minimal operational overhead. For teams whose competitive edge is speed of iteration rather than sheer design complexity, that's exactly what's needed.
Design data still needs to go somewhere
Choosing the right CAD platform is only half the picture. Design data that stays trapped in CAD files, disconnected from manufacturing, quality and service, creates its own bottlenecks further down the line. This is where Windchill earns its place in the conversation. Windchill connects to both Creo and Onshape, so wherever your design work happens, it feeds into a single, connected product lifecycle rather than becoming an island of its own. Coverage isn't just about the right CAD tool for the job; it's about making sure that tool never leaves your data stranded.
Where we can help
As a PTC reseller working with engineering and manufacturing businesses across the UK, we spend a lot of time helping teams work out exactly where they sit on this spectrum, and where they might sit in two or three years' time as their products and teams evolve. Sometimes that conversation ends with a single-platform recommendation. Just as often, it ends with a plan for how Creo and Onshape can sit side by side, connected through Windchill, so every team is working with the tool that fits the job in front of them.
If you're weighing up your own CAD strategy, or simply haven't revisited it in a while, we'd be glad to talk it through.