If your sheet has Email Address, just upload the list with Email Address to see who matched.
If your sheet only has Job Title and Company Name, you can run a smart list with those filters using CONTAINS to see who matches. This would work too if you had First Name/Last Name.
Then you could extract those columns from Marketo and run some analysis in Excel to fill in gaps...which is what seems to be your goal.
But no, do not upload just Title and Company Name. You will end up with 2000 useless records.
Thanks for your reply and input. The thing is, if I run a smart list with 2000 job titles and 2000 company names and set it on contain, then it wont be specific.
E.g. 2 rows:
Job title = marketing, Company name= Marketo
Job title = sales, Company name= XYZ
Then it could be matched like this: Job Title= Sales and Company is Marketo. This is not what I want. I want an exact match. Does that make sense?
Can you explain your end goal here? What would you do if you successfully ran the smart list based on the Titles list? What's your next step?
Sorry, not really understanding what you want.