Question: Were GridIron Master and Careers first manufactured/published by different companies?

Context paragraphs:
Holding company: A holding company is a company that owns other companies' outstanding stock.  The term usually refers to a company that does not produce goods or services itself; rather, its purpose is to own shares of other companies to form a corporate group.  Holding companies allow the reduction of risk for the owners and can allow the ownership and control of a number of different companies.

JDSU: JDS Uniphase Corporation was a company that designed and manufactured products for optical communications networks, communications test and measurement equipment, lasers, optical solutions for authentication and decorative applications, and other custom optics.  It was headquartered in Milpitas, California.  It was formerly known as JDS Uniphase, prior to a rebranding of its corporate image on September 14, 2005.  The legal entity was called JDS Uniphase Corporation, but more commonly called JDSU.  On August 2015, JDSU split into two different companies: Viavi Solutions and Lumentum Holdings.

9M120 Ataka: The 9M120 "Ataka (Russian: Атака ; "Attack") is an anti-tank guided missile (ATGM) originating from the Soviet Union.  The NATO reporting name of the 9M120 missile is the AT-9 "Spiral-2.  It is the next major generation in the 9K114 Shturm (AT-6 Spiral) family.  The missile has radio command guidance and is also a Beam riding SACLOS.  This missile's primary variant was designed to defeat tanks with composite armour and explosive reactive armor.  The 9M120 Ataka system is often confused with the 9K121 Vikhr system, despite being different weapons systems developed by different companies.  The former was designed by the KBM machine-building design bureau and manufactured by the Degtyarev plant.  According to the Stockholm International Peace Research Institute, Russia exported the Ataka ATGM to Iran, Kazakhstan, and Slovenia.

UK Chemical Reaction Hazards Forum: The UK Chemical Reaction Hazards Forum is a group of process safety scientists, from different companies, who meet at regular intervals to share knowledge and experiences of recent chemical incidents, within their own companies, with the aim of preventing a repeat of the incident at a different location.  They further try extend this aim to assist smaller companies, many of whom will not have access to the sophisticated equipment of the forum members, by publishing these incidents and near-misses on a web site.

Maschinenbau Kiel: Maschinenbau Kiel GmbH designed, manufactured and marketed marine diesel engines, diesel locomotives and tracked vehicles under the MaK brand name.  The three primary operating divisions of Maschinenbau Kiel GmbH were sold to different companies in the 1990s.

GridIron Master: GridIron Master is a wooden board game invented by Brett Proud, Craig Proud, Paul Morin and Jordan Sampson.  It was first published by Canadian company "PHI Sports Games" in 2007.  It combines the strategic elements of American and Canadian Football with chess.  The Canadian Edition of "GridIron Master" is licensed by the Canadian Football League Players Association (CFLPA).

Careers (board game): Careers is a board game first manufactured by Parker Brothers in 1955 for $2.97 US, and was most recently produced by Winning Moves Games.  It was devised by the sociologist James Cooke Brown.  Victory conditions (a secret "Success Formula") consist of a minimum amount of fame, happiness and money that the player must gain.  Players (from two to six) set their own victory conditions before the game begins, the total of which must be sixty (or one hundred, recommended when only two are playing).

Bicycle Gaff Deck: The Bicycle Gaff Deck is a deck of specially designed playing cards for use - along with a standard deck of Bicycle brand cards - in the performance of illusion or sleight-of-hand effects.  There are many different versions of the deck, made by different companies in the magic/illusion industry.  The different versions have different sets of 'gaff' cards (see below for examples), which can be used to create different effects.  The cards in a gaff deck have a normal back, but the cards are changed (visually) in some way.  Some examples include:

Dana 44: The Dana/Spicer Model 44 is an automotive axle manufactured by Dana Holding Corporation and is used extensively among automobile manufacturers and in the automotive aftermarket area as well.  The Dana 44 was first manufactured in the 1940s and is still being manufactured today, both front and rear axle variants.  The Dana 44 has been manufactured as a beam axle and independent suspension for both front and rear axle setups.  There are also different variations of the Dana 44.  Over a dozen automobile manufacturers have made vehicles that have Dana 44 axles, including Jeep which currently manufactures Four-wheel drive vehicles that have both front and rear Dana 44 axles.

Moose Tracks: Moose Tracks is a branded flavor of ice cream licensed by Denali Flavors that is manufactured by different companies under various brands.  The Original Moose Tracks product description is as follows, "vanilla ice cream with peanut butter cups and famous Moose Tracks fudge".

Supporting paragraphs: GridIron Master Careers (board game)
Answer: yes