Question: Which comic company put out both Captain America and Howard the Duck?

Context paragraphs:
Captain America (William Burnside): William Burnside, also known as the Captain America of the 1950s, is a fictional character appearing in American comic books published by Marvel Comics.  He was created by writer Steve Englehart and artist Sal Buscema in "Captain America" #153–156 (September–December, 1972) as a specifically different Captain America than the Captain America introduced in 1953 in "Young Men" comics.

Captain America: The First Avenger: Captain America: The First Avenger is a 2011 American superhero film based on the Marvel Comics character Captain America, produced by Marvel Studios and distributed by Paramount Pictures.  It is the fifth film in the Marvel Cinematic Universe.  The film was directed by Joe Johnston, written by Christopher Markus & Stephen McFeely, and stars Chris Evans, Tommy Lee Jones, Hugo Weaving, Hayley Atwell, Sebastian Stan, Dominic Cooper, Neal McDonough, Derek Luke, and Stanley Tucci.  Set predominantly during World War II, "Captain America: The First Avenger" tells the story of Steve Rogers, a sickly man from Brooklyn who is transformed into super-soldier Captain America and must stop the Red Skull, who intends to use an artifact called the "Tesseract" as an energy-source for world domination.

Captain America (serial): Captain America is a 1944 Republic black-and-white serial film loosely based on the Timely Comics (today known as Marvel Comics) character Captain America.  It was the last Republic serial made about a superhero.  It also has the distinction of being the most expensive serial that Republic ever made.  It also stands as the first theatrical release connected to a Marvel character; the next theatrical release featuring a Marvel hero would not occur for more than 40 years.

The Death of Captain America: "The Death of Captain America" is an eighteen-issue Captain America story arc written by Ed Brubaker with art by Steve Epting and published by Marvel Comics.  The arc first appears in "Captain America" (vol.  5) #25–42.  The first issue of the story arc, "Captain America" #25, was the highest selling comic for the month of its release.  The story arc had wide-sweeping effects throughout the Marvel Universe and was accompanied by the miniseries "".

Captain America's shield: Captain America's shield is a fictional item appearing in American comic books published by Marvel Comics.  It is the primary defensive and offensive piece of equipment used by the Marvel Comics superhero Captain America; he is seldom seen without it.  Over the years, Captain America has had the use of several different shields of varying composition and design.  His original heater shield first appeared in "Captain America Comics" #1 (March 1941), published by Marvel's 1940s predecessor, Timely Comics.  The circular shield best associated with the character debuted in the next issue, "Captain America Comics" #2.  Captain America was created by the team of writer-artist Joe Simon and artist Jack Kirby.

Captain America: Captain America is a fictional character appearing in American comic books published by Marvel Comics.  Created by cartoonists Joe Simon and Jack Kirby, the character first appeared in "Captain America Comics" #1 (cover dated March 1941) from Timely Comics, a predecessor of Marvel Comics.  Captain America was designed as a patriotic supersoldier who often fought the Axis powers of World War II and was Timely Comics' most popular character during the wartime period.  The popularity of superheroes waned following the war and the "Captain America" comic book was discontinued in 1950, with a short-lived revival in 1953.  Since Marvel Comics revived the character in 1964, Captain America has remained in publication.

Captain America (comic book): Captain America is the name of several comic book titles featuring the character Captain America and published by Marvel Comics, beginning with the original "Captain America" comic book series which debuted in 1968.

Captain America and the Falcon: Captain America and the Falcon was a comic book series published for fourteen issues in 2004 and 2005 by Marvel Comics.  The series' title is a reuse of the cover title of Captain America's solo series during a period in which the Falcon was given second billing on the front cover.  Although never the official title, "Captain America" was cover titled "Captain America and the Falcon" from issue #134 (dated February 1971) to issue #222 (dated June 1978).

Captain America: The Winter Soldier: Captain America: The Winter Soldier is a 2014 American superhero film based on the Marvel Comics character Captain America, produced by Marvel Studios and distributed by Walt Disney Studios Motion Pictures.  It is the sequel to 2011's "" and the ninth film in the Marvel Cinematic Universe (MCU).  The film was directed by Anthony and Joe Russo, with a screenplay by Christopher Markus & Stephen McFeely, who had also written "The First Avenger".  It stars Chris Evans as Captain America, leading an ensemble cast that includes Scarlett Johansson, Sebastian Stan, Anthony Mackie, Cobie Smulders, Frank Grillo, Emily VanCamp, Hayley Atwell, Robert Redford, and Samuel L. Jackson.  In "Captain America: The Winter Soldier", Captain America, Black Widow, and Falcon join forces to uncover a conspiracy within S.H.I.E.L.D. while facing a mysterious assassin known as the Winter Soldier.

Howard the Duck (film): Howard the Duck (titled Howard: A New Breed of Hero in the UK) is a 1986 American science-fiction comedy film directed by Willard Huyck and starring Chip Zien, Lea Thompson, Jeffrey Jones, and Tim Robbins.  Produced by Gloria Katz and written by Huyck and Katz, with George Lucas as executive producer, the screenplay was originally intended to be an animated film based on the Marvel comic book of the same name, but the film adaptation became live-action because of a contractual obligation.  Although several TV adaptations of Marvel characters had aired during the preceding 21 years, this was the first theatrical released feature film, coming after the serial "Captain America".

Supporting paragraphs: Howard the Duck (film) Captain America (serial)
Answer: Marvel