Two providers of personal computer postage may soon be operating under one owner, as Stamps.com hopes to obtain Endicia.com, which is currently owned by Newell Rubbermaid Inc.

On March 22, Stamps.com entered into a definitive agreement with Newell Rubbermaid to acquire Endicia for $215 million.

A Stamps.com company presentation dated May 2015 reported that the transaction "is expected to close five business days after fulfillment of customary closing conditions including regulatory approval," noting that the duration of that approval process is uncertain.

That same presentation identifies USPS, Pitney, eBay/PayPal, Amazon and others as the firm's competitors in the PC postage market.

Stamps.com, of El Segundo, Calif., describes itself as a leading provider of Internet-based postage services.

Endicia.com, of Mountain View, Calif., claims "over 25 years of leadership and innovation in electronic postage software solutions."

Both firms are partners with the United States Postal Service.

PC postage products from both companies have been listed in the Personal Computer Postage section of the Scott Specialized Catalogue of United States Stamps and Covers.