When I'm looking for ASX growth shares, I focus on businesses that are still expanding their opportunity and building momentum over time.
That usually leads me toward companies with scalable models, growing markets, and clear pathways to increase revenue.
With that in mind, here are three ASX growth shares I would look at right now if I had $3,000 to invest.

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Netwealth Group Ltd (ASX: NWL)
Netwealth is benefiting from a structural shift in how Australians invest.
More advisers are moving client funds onto platform-based solutions, and Netwealth has been capturing a growing share of that flow. As funds are added to the platform, revenue grows alongside it, creating a base that can continue to expand.
Those funds also tend to stay invested, which supports a more stable and predictable growth profile. Over time, that can create a compounding effect as new inflows build on top of an already growing base.
The business is also continuing to invest in its platform, adding new features and improving functionality for advisers. That helps it remain competitive and positions it well to keep attracting new clients.
DroneShield Ltd (ASX: DRO)
DroneShield is an ASX growth share operating in a market that is still in its early stages.
The increasing use of drones across defence, security, and civilian applications is driving demand for detection and countermeasure technology. As adoption grows, the need for protection systems becomes more important.
DroneShield has been expanding its product offering to meet that demand, with solutions that can be used across a range of environments. This allows it to target multiple markets rather than relying on a single use case.
There is also growing investment from governments and organisations in this area, which can support long-term demand. As awareness and adoption increase, the company has an opportunity to continue scaling its operations.
Block Inc (ASX: XYZ)
Block provides exposure to digital payments and financial services through two interconnected ecosystems.
Square supports businesses with payments and operational tools, while Cash App focuses on consumers. As both sides continue to grow, they reinforce each other, creating a broader and more valuable network.
This structure opens up multiple avenues for growth.
As more merchants use Square, more transactions flow through the system. As Cash App continues to grow its user base, engagement and monetisation opportunities increase. Together, they create a platform that can continue to expand over time.
Block is also moving into additional financial services, including lending and other tools (like Afterpay) that can deepen relationships with users and support further growth.
Foolish takeaway
Over time, growth often comes from businesses that can keep building as their markets expand.
I think these ASX growth shares are positioned in areas where demand is increasing and adoption continues to grow, which makes them interesting when thinking about long-term growth investing.