Pros
Some specific contract work can be interesting. It really all depends on what contracts are won and where in the contract cycle you are at. For the first couple years (the honeymoon period), the work environment is exciting and motivational. The staff (NOT THE MANAGEMENT) that work at ICF International are a diverse and wonderful bunch. The Holiday Party they put on in DC is baller. Some benefits are good. Managers tend to have lots of industry credentials.
Cons
Starting salary is below par and not competitive. Annual raises are a joke. Only get 18 days of vacation AND sick leave. Parents watch out. There is no sense that ICF really cares whether you stay or not. ICF International does not invest in you...the client does. Managers have an expectation for staff to occasionally work long hours and weekends in light of the low pay (there's no overtime pay). Managers have NO CLUE what it's like for the staff because none of them worked at ICF as staff. Staff come and go (i.e., turnover is high) and managers are hired from industry. The company is VERY siloed meaning group managers are very possessive of staff and don't care if you think another group's work is more interesting even if you have little billable work within your own group. The entry level title is (RESEARCH ASSISTANT) and is demeaning and not appropriate.