The best ASX growth shares are not always the newest or most exciting names on the market. They are often businesses with proven models, expanding addressable markets, and management teams that still have plenty of room to execute.
With that in mind, here are three ASX shares that could be much bigger in 10 years.
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Breville Group Ltd (ASX: BRG)
Breville Group has spent years turning kitchen appliances into a global premium brand.
Coffee has been central to that story. The company's espresso machines have tapped into the shift toward higher-quality coffee at home, helping Breville build a strong position in a category with repeat customer engagement and premium pricing.
But Breville is not standing still. It continues to expand across geographies, brands, and product categories. Its portfolio now stretches across Breville, Sage, Baratza, and Lelit, giving it exposure to different regions and parts of the premium kitchen market.
The company also has a habit of turning product innovation into growth. That matters in a category where design, performance, and brand trust can influence buying decisions.
If Breville keeps deepening its presence in the US, Europe, and newer markets, it could continue to grow well beyond its current size.
Hub24 Ltd (ASX: HUB)
Hub24 is benefiting from a long-running shift in wealth management.
The company provides investment platform technology used by financial advisers and their clients. These platforms help manage portfolios, reporting, administration, and access to investments.
The important point is that advisers are still moving away from older legacy systems. That shift has created a long runway for modern platforms that are easier to use and more flexible.
Hub24 has been one of the clearest winners from this trend. As more funds move onto its platform, the company benefits from rising scale and operating leverage.
Australia's pool of investable wealth is large and still growing. That gives the company an attractive backdrop if it can keep winning adviser support and expanding funds under administration.
With structural tailwinds and a scalable platform, this ASX share could be far larger in 10 years.
Megaport Ltd (ASX: MP1)
Megaport is building a larger role for itself in digital infrastructure.
The ASX share started with a clear proposition: making it easier for businesses to connect to cloud providers, data centres, and networks on demand. That remains a useful service as companies continue moving workloads into cloud environments.
But the story has become more interesting following its acquisition of Latitude.sh. This adds compute capability to Megaport's existing connectivity platform and broadens its market opportunity.
In simple terms, the company is moving beyond helping customers connect to infrastructure. It is gaining exposure to more of the infrastructure stack itself.
That could be important as demand for cloud, AI workloads, and flexible digital capacity continues to rise.
If Megaport can successfully integrate Latitude.sh and keep expanding customer usage, it could be a very different business by the mid-2030s.
