Collocations for consultant - noun

business, design, financial, management, public relations | independent, outside

act as
He was happy to act as a consultant to the company.

bring in, employ (sb as), engage (sb as), hire (sb as), use
We brought in a management consultant to sort out the mess.

~ in
a consultant in design, printing and advertising

~ on
a consultant on business ethics

~ to/with
They work as consultants to a software company.

hospital, NHS
She is now a hospital consultant.

cardiologist, gynaecologist, obstetrician, paediatrician, pathologist, physician, psychiatrist, etc.

~ in
a consultant in psychiatry