I believe if an organization is widely known (Apple, Google, etc.), one can omit explicit references to its webpage. Otherwise, the 7th edition of APA style recommends the following template
Corporation/Group/Organization's Name. (Year webpage was last
updated/published, Month Day if given). Title of page: Subtitle (if
to cite a
Page or Section from a Website Created by a Corporate or Group
The link above includes an example, as well:
Canadian Cancer Society. (2013, April 14). Cancer research.
(Corporation/Group's Name, Year)
Example: (Canadian Cancer Society, 2013)
In-Text Quote (Corporation/Group's Name, year, Section Name section,
para. Paragraph Number if more than one paragraph in section)
Example: (Canadian Cancer Society, 2013, Behavioural research section,
Note: When there are no visible page numbers or paragraph numbers, you
may cite the section heading and the paragraph number to identify
where your quote came from.