Investors are likely to keep an eye on the following small-cap stocks listed on the Australian Securities Exchange.

Universal Biosensors (ASX:UBI)

Universal Biosensors reported receipts from customers increased by 28% to AU$1.6 million compared with the same period a year earlier, while cash and cash equivalents were at AU$4.9 million as of March 31.

Rent.com.au (ASX:RNT)

Rent.com.au reported quarterly revenue of AU$932,000 for the March quarter, up 5% from the same period last year, and up 24% from the December 2024 quarter. Active RentPay customers reached 13,043 as of April 29, up 45% compared with the same period in 2024, while RentPay's annualized recurring revenue hit AU$1 million in the March quarter.

WhiteHawk (ASX:WHK)

WhiteHawk reported revenue of roughly $309,500 for the quarter ended March 31.

First Graphene (ASX:FGR)

First Graphene's third quarter combined income was about AU$735,000, which includes AU$118,000 in graphene and paid development sales and AU$623,000 in grant-funded programs.

RemSense Technologies (ASX:REM)

RemSense Technologies reported net cash from operating activities of AU$420,000 and cash receipts of AU$1.4 million for the quarter ended March 31.