Hydrologists may also work for private companies, large and small. A hydrologist may independently contract his or her services to businesses, individuals, or government agencies. There are also privately funded research organizations for which a hydrologist may choose to work. This may be the case with large, private research universities where he or she took graduate studies or has applied for post-doctoral studies. The possibilities for private contracting and consulting are many; hydrologists find that their skills and knowledge are in high demand and are well rewarded.