Educational Service Unit
The Educational Service Unit "provide[s] educational services to thirteen school districts in south-central and southwestern Nebraska." Their mission "is to provide visionary leadership and quality educational services in partnership with member schools to achieve excellence in education." The list of the ESUs can be found here.
The various ESUs organize bad quizbowl tournaments in their respective districts as well as host workshops (non-quizbowl related), host problem solving seminars, promote honors programs, host golf tournaments, run chess tournaments and have superman teach in classrooms.
According to this photo a competition in February 2014 in ESU #11 featured teams of six standing up (and sometimes sitting down) to buzz in (it appears that the buzzer lights are on some sort of pole as this photo demonstrates and the competition took place in the Phelps County Museum. It appears that at least 3-4 judges are necessary to run the match. According to this photo there are 12 toss-ups/bonuses per match. According to this photo each team member receives a medal as a prize.
There is no evidence on the ESU #6 facebook page or the ESU #4 facebook page that they are involved in any quiz bowl activities.
2014 ESU #8 HS results can be found here.
More information about ESU #11 QB can be found here.
Sample elementary school questions for ESU can be found here
Sample middle school questions for ESU can be found here
Sample high school questions for ESU can be found here
Results for tournaments that used NAQT speedchecks can be found here: 2006 2007 2008 2009 2010 2011 2012 2013