Can enyone advise me with this, please?

I will choose some options in one question and I want to see only those checked options in the next question.

For example:
Q1 - Please indicate which of the following companies have you heard of?
Company 1
Company 2
Company 3
Company 4
Company 5
(Respondent ticked Company 1, Company 3 and Company 5)

Q2 - What product from these companies have you ever used?
Company 1...............
Company 3...............
Company 5...............
(in questionnaire will show only ticked options)

Hi,
wihou knowing which question types you ar using, the advice is difficult.

Let's assume the first question is of type "multiple" and the second of type "multiple short text".

You may use the array filter option. Set the array filter of the second question to the first.

Or you use subquestion relevance in the second question like
Q1_SQ001=="Y", meaning subquestion SQ001 in question Q1 was checked.
and so on.
About that, please read the manual about qustion types.
manual.limesurvey.org/Question_types

If you want to use different question types, you may have to adapt the relevance equation.

Joffm