After a long time looking for Latin names for the name of my startup, I came up with "Scius", which from what I was reading means cognizant. This will be a company in the area of data science. So I'd like to make sure with you guys whether this would be an appropriate name. Thanks!
The adjective scius means "knowing", "have knowledge", "someone who knows". It comes from the verb scire, "to know", and is not semantically far from the present participle sciens. If you want to convey that your company has knowledge, using this adjective is a good idea.
However, you should pay some attention picking the form. Is it masculine, feminine, or neuter? Singular or plural? Latin has also case inflection, but I would stick with nominative. If you want your company to be a masculine entity — which is particularly relevant if you want the name to refer to you in person — then the singular masculine scius is the way to go. If you want it to be a general thing rather reference to a person, I would suggest the singular neuter scium. If you want there to be an implicit noun like "[a] knowledgeable [machine]", then the gender and number depend on the noun. For this particular example it would be machina scia.
Of course, there are also non-Latin aspects worth considering. Does the name sound good? Is it easy to pronounce and distinguish? What other words in other relevant languages does it look or sound like? The weight of these questions is for you to consider. Scius is certainly reasonable, but I urge you to consider the other forms seriously.