Cricket Australia and the players directly involved could literally pay a high price for the ball-tampering scandal engulfing the sport.

Fund manager Magellan is a major naming rights sponsor of Cricket Australia and has expressed its deep concern about behaviour that amounted to outright cheating.

It wants a quick resolution from Cricket Australia that involves decisive action against the players involved, and is waiting to see what the sport's governing body does before it takes any action.

Magellan took the Commonwealth Bank's place as the men's team's main home series sponsor after CBA decided to shift its sponsorship dollars to women's, Indigenous, all-abilities and grassroots cricket.

However, captain Steve Smith is one of three CBA cricket ambassadors, along with women's cricket captain Meg Lanning and star all-rounder Ellyse Perry.

CBA told the ABC that it is awaiting the outcome of Cricket Australia's investigation before taking any action.

"We are disappointed about the events that have emerged from the third test in South Africa and have asked for a full explanation from Cricket Australia following the conclusion of its investigation into this affair," a spokesman said.

Cricket Australia has already stood down Smith and vice-captain David Warner over the scandal, leaving Tim Paine in charge of the team for the final test in the four-match series in South Africa.

Sponsors 'acutely aware' of reputational damage

Aside from a tattered reputation and losing the captaincy, the ball-tampering scandal could also prove very financially costly for Smith and Warner.

One of the Australian captain's major personal sponsorship deals is in doubt, with the makers of Weet-Bix saying the relationship is "under review".

Sanitarium told the ABC that it wants its brand ambassadors to "align with the right values".

Warner's website lists Asics, LG, Gray Nicholls, Nine, Toyota, Nestle's Milo and the Make-a-Wish Foundation as brand partners.

The ABC has contacted several of these companies for their response to Warner's involvement in the incident.

The Australian opener is strongly linked to South Korean electronics company LG, fronting ads for its televisions and air conditioners.

"LG is acutely aware of the incident in South Africa involving the Australian Cricket team," the company said in a statement.

"As a sponsor of vice-captain David Warner, we are keeping a close eye on developments in this case and in particular the ongoing response from Cricket Australia, which will inform actions regarding our partnership.

"Our ambassadorships are constantly undergoing review so that we are able to make the best decisions for our customers, employees and stakeholders.

"As a brand that sets out to improve the everyday lives of Australians, our focus is on ensuring our partnerships reflect those values and that is our first priority."

Nestle said Milo's sponsorship deal with Warner wrapped up at the end of last year.