Use proper domain name extension, which will suit well for your business. Here are some top extensions and their uses:-
co : an abbreviation for company, commerce, and community.
.info : informational sites.
.net : technical, Internet infrastructure sites.
.org : non-commercial organizations and nonprofits.
.biz : business or commercial use, like e-commerce sites.
.me : blogs, resumes or personal sites.
I think these will help you a lot.