Question: Which construction company build the tower which is connected by an elevated walkway with the Metropolitan Life North Building which is just north of it?

Context paragraphs:
Hedden Construction Company: Some of the finest buildings in New Jersey, New York City, and other large eastern cities were built by the Hedden Construction Company, one of the largest construction companies operating in Newark in the very early 1900s.  Among the most notable is the Metropolitan Life Insurance Company Tower located at One Madison Avenue in New York, NY.  The tower was the world's tallest building from 1909 to 1913 and home to the Hedden Construction Company's main offices located on the 36th and 37th floors.  During this prosperous period over $40,000,000 in construction contracts and payments were collected by the firm.

Greektown station: Greektown station is a Detroit People Mover station in Downtown Detroit, Michigan.  It is located above Beaubien Street with an elevated walkway providing direct connection to the Greektown Casino on the 3rd level (in the 500 block of East Lafayette Street), which was previously the Trappers Alley indoor shopping center.  The station takes its name from the Historic Greektown district.

Tennōzu Isle Station: Tennōzu Isle Station (天王洲アイル駅 , Tennōzu Airu-eki ) is a railway station in Shinagawa, Tokyo, Japan, operated by Tokyo Monorail and Tokyo Waterfront Area Rapid Transit (TWR).  The two stations are approximately 100 m apart, linked by an elevated walkway.

Metropolitan Life Insurance Company Tower: The Metropolitan Life Insurance Company Tower, colloquially known as the Met Life Tower, is a landmark skyscraper located on Madison Avenue near the intersection with East 23rd Street, across from Madison Square Park in Manhattan, New York City.  Designed by the architectural firm of Napoleon LeBrun & Sons and built by the Hedden Construction Company, the tower is modeled after the Campanile in Venice, Italy.  The hotel located in the clock tower portion of the building has the address 5 Madison Avenue, while the office building covering the rest of the block, occupied primarily by Credit Suisse, is referred to as 1 Madison Avenue.

Jardine House: Jardine House (), formerly known as Connaught Centre (), is an office tower in Hong Kong.  The building is located at 1 Connaught Place, Central on Hong Kong Island.  It is owned by Hongkong Land Limited, a subsidiary of Jardines.  At the time of its completion in 1972, Jardine House was the tallest building in Hong Kong and in Asia.  In 1980, the Hopewell Centre usurped the title of the tallest building in Hong Kong.  The building is interconnected by the Central Elevated Walkway with buildings of Hongkong Land Limited like Exchange Square and the International Finance Centre.

Theodore Conrad: Theodore Conrad (May 19, 1910 – August 19, 1994) was an American architect, preservationist and a leading architectural model maker, often referred to as the Dean of Models.  Conrad was one of the first independent architectural model makers in the United States and contributed significantly to modern architecture through his collaborations with architects such as Harvey Wiley Corbett, Wallace Harrison, Skidmore, Owings & Merrill and Edward Durell Stone.  His most notable projects include models for the Metropolitan Life North Building, Rockefeller Center, Lever House, Seagram Building, the Manufacturers Trust Company Building and the John F. Kennedy Eternal Flame.

Leeds New Lane railway station: Leeds New Lane was a proposed new railway station to accommodate High Speed Two rail services in West Yorkshire, England.  It was planned to be constructed on a viaduct on New Lane south of Leeds city centre, the River Aire and Leeds City station to which it would be connected by an elevated walkway.  The site is occupied by "Central Park", a small low-rise office park built in the 1990s and other small office buildings.

Central Elevated Walkway: The Central Elevated Walkway () is an extensive footbridge network spanning Admiralty, Central and parts of Sheung Wan, near Victoria Harbour in Hong Kong.

Metropolitan Life North Building: The Metropolitan Life North Building, now known as Eleven Madison, is a 30-story art deco skyscraper on Madison Square Park in Manhattan, New York City, at 11-25 Madison Avenue.  The building is bordered by East 24th Street, Madison Avenue, East 25th Street and Park Avenue South, and is connected by an elevated walkway to the Met Life Tower just south of it.  The North Building was built on the site of Richard Upjohn's original Madison Square Presbyterian Church.  The second church, designed by Stanford White of McKim, Mead and White was built in 1906, across 24th street on land conveyed by Metropolitan Life.  As part of the Metropolitan Life Home Office Complex, the North Building was added to the National Register of Historic Places on January 19, 1996.

Q. M. Pyne Store: Q. M. Pyne Store, also known as the Palisades Restaurant, is a historic country store located at Eggleston, Giles County, Virginia.  It consists of two multi-story, brick masonry structures, attached side-by-side and embanked into a hillside.  The north building was completed in 1926 and appended with a similar building on the south side about 1929.  The north building is three stories and measures 70 feet deep and 40 feet wide.  It has a flat roof, parapet and sign tablet, with a windowed storefront below.  The building housed C.C. Whittaker & Company, a general store; a Chevrolet Dealership, with a showroom and a place to repair cars; a doctor’s office; and the United States Post Office until it moved to its new location in the 1980s.

Supporting paragraphs: Metropolitan Life North Building Metropolitan Life Insurance Company Tower
Answer: Hedden Construction Company