In the case of a company limited by shares or guarantee and having only one member, one qualifying person present at a meeting is a quorum.
In any other case, subject to the provisions of the company's articles, two qualifying persons present at a meeting are a quorum, unless—
each is a qualifying person only because he is authorised under section 323 to act as the representative of a corporation in relation to the meeting, and they are representatives of the same corporation; or
each is a qualifying person only because he is appointed as proxy of a member in relation to the meeting, and they are proxies of the same member.
For the purposes of this section a "qualifying person" means—
an individual who is a member of the company,
a person authorised under section 323 (representation of corporations at meetings) to act as the representative of a corporation in relation to the meeting, or
a person appointed as proxy of a member in relation to the meeting.