Question: What county is the the headquarters of NeuLion located in?

Context paragraphs:
Paola's post: Paola's post, sometimes called Post Paola, in Miami County, Kansas, was located on the west side of Bull Creek, just west of Paola, Kansas.  It was probably established in December 1861, as that was the first time it was mentioned.  This post became one of the more important posts along the Kansas-Missouri border during the Civil War.  It became a district headquarters in 1863.  Later, in September 1864, it was designated a subdistrict headquarters, when the district headquarters was moved to Lawrence, Kansas.  The military road from Fort Leavenworth to Fort Gibson ran through Paola, thus ensuring the post always had some importance.

Rochester Fire Department Headquarters and Shops: Rochester Fire Department Headquarters and Shops is a historic fire department complex located at Rochester in Monroe County, New York.  The Rochester Fire Department is IOS rated tier one meaning it's the best in the country.  The complex incorporates two structures: the headquarters building and shops building.  The Headquarters Building is triangular in plan and is two stories in height and of buff colored brick construction with light colored stone trim.  The Shops Building is irregular in plan, two stories and built of the same buff colored brick as the Headquarters Building.  Both structures were constructed in 1936 and incorporate glass block construction and feature Art Deco detailing.

Fairfax County Public Schools: The Fairfax County Public Schools system (abbreviated FCPS) is a school division in the U.S. commonwealth of Virginia.  It is a branch of the Fairfax County government which administers public schools in Fairfax County and the City of Fairfax.  FCPS's headquarters is located in the Gatehouse Administration Center in Merrifield, an unincorporated section of the county near the city of Falls Church; the headquarters has a Falls Church address but is not within the city limits.  All Fairfax County Public Schools are accredited through the Southern Association of Colleges and Schools Council on Accreditation and School Improvement.

NCR Corporation: The NCR Corporation (originally National Cash Register) is an American computer hardware, software and electronics company that makes self-service kiosks, point-of-sale terminals, automated teller machines, check processing systems, barcode scanners, and business consumables.  They also provide IT maintenance support services.  NCR had been based in Dayton, Ohio, starting in 1884, but in June 2009 the company sold most of the Dayton properties and moved its headquarters to the Atlanta metropolitan area.  Currently the headquarters are in unincorporated Gwinnett County, Georgia, near Duluth and Alpharetta.  Future headquarters are planned for the end of 2017 at Technology Square (adjacent to the Georgia Institute of Technology) located in Atlanta.

Headquarters, New Jersey: Headquarters is an unincorporated community located within Delaware Township in Hunterdon County, New Jersey, United States.  The settlement is centered around the crossing of Zentek Road over the Caponockons Creek, near the intersection of Zentek Road and Ringoes-Rosemont Road (County Route 604).  The area is part of the Headquarters Historic District, a listing on the National Register of Historic Places.  Headquarters was the site of a mill established in 1735, one of the first in Hunterdon County.  The industry thrived until the early 20th century when the mill shut down.  The district was first established as a historic area by Delaware Township in the 1980s to push back against a widening of CR 604.  It is now on the national list of historic districts with a renewal of its boundaries occurring in 2016.

Cross S Ranch Headquarters: The Cross S Ranch Headquarters is a historic building located in farmland 5 mi south of Olustee, Oklahoma.  The two-story stone building served as the headquarters of the Cross S Ranch, a cattle ranch founded in 1891.  As a major cattle trail passed through the area, the ranch took advantage of the open land to raise free-range cattle.  By 1902, the ranch had decreased in size due to homesteaders and raised horses rather than cattle.  The ranch eventually became a wheat farm, reflecting a broader shift in Jackson County agricultural production.  A larger wheat farm purchased the ranch in the 1970s, and the headquarters building is all that remains of the original property.

Embu, Kenya: Embu is a town located approximately 120 km northeast of Nairobi towards Mount Kenya.  Embu serves as the provincial headquarters of Eastern Province in Kenya and is also the county headquarters of Embu County.  Located on the south-eastern slopes of Mount Kenya, the town of Embu had a population of 41,092 in 1999.

NeuLion: NeuLion (pronounced "new lion") () is a digital video technology company headquartered in Plainview, New York, USA.

Headquarters, Idaho: Headquarters is an unincorporated community in Clearwater County, Idaho, United States.  Headquarters is located on State Highway 11, 10 mi north of Pierce.  A company town of Potlatch Corp., it was originally established as a fire protection station in 1906.  Headquarters was the northeastern terminus of the Camas Prairie Railroad.

Plainview, New York: Plainview is a hamlet and census-designated place (CDP) located near the North Shore of Long Island in the town of Oyster Bay, Nassau County, New York, United States.  The population of the CDP as of 2010 was 26,217.  The Plainview post office has the ZIP code 11803.

Supporting paragraphs: NeuLion Plainview, New York
Answer: Nassau County