Let Google be your guide, young grasshopper.
Step 1: enter the search term of the company you're looking for
Step 2: click on the link to the company's page (its almost always on page 1)
Step 3: click on the ubiquitous "contact us" link
Step 4: pick up the phone or open your email account
Step 5: ask your questions
Step 6: have your questions answered (results may vary depending on the laziness or level of apathy of the person/company you're contacting)
The above strategy will work for every person/company you're looking for with the likely exception of Robert Byrne.
Mark Course. Engage.