By 
Amazon.com Inc.
AMZN,
-2.86%
is among the bidders for healthcare company Signify Health Inc.
SGFY,
-2.44%,
joining other heavy hitters vying in an auction for the home-health services provider, according to people familiar with the matter.
Signify is for sale in an auction that could value it at more than $8 billion, the people said. Bids are due around Labor Day, according to the people, but it is always possible an eager bidder could strike a deal before then.
CVS Health Corp.
CVS,
+0.40%
is also among the suitors, The Wall Street Journal previously reported, as the drugstore and insurance giant looks to expand in home-health services. UnitedHealth Group Inc.
UNH,
+0.57%
and another corporate buyer are also circling the company, according to the people.
There is no guarantee any of them will reach a deal for Signify, which has been exploring strategic alternatives. The healthcare company has a market value of roughly $5 billion, boosted since the Journal first reported on the possibility of a deal early this month.
An expanded version of this report appears on WSJ.com.
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