Speed & Custom Shop
Speed and Custom Division Shop, more commonly abbreviated, and referenced to as Speed & Custom Shop, was a relatively short-lived construction company, specialized in manufacturing wooden mock-ups, that has provided production assets for the production of .

The Phoenix, Arizona based, Speed and Custom Division Shop, was established by Gene Winfield in 1966 at the request of his employer, model kit company Aluminum Metal Toys (AMT). Incorporated as a subsidiary, AMT needed the company to build both full-scale and scaled automobile mock-ups (typically out of wood at the time) to promotional ends, as well as to manufacture the templates or masters in order to construct the molds from which the parts for their model kits were extracted or cast. Winfield headed the subsidiary company as production manager.

It was in this time that Stephen Edward Poe managed to broker a deal between Gene Roddenberry and AMT. The agreement entailed that AMT were given the exclusive rights to manufacture model kits based on the new Star Trek television series in return for helping out Desilu Studios with the construction of set pieces when the need arose. As it turned out that proviso was invoked upon on two occasions, and AMT reverted this task to its subsidiary. The first time was already in the year of the company's establishment, when it was tasked with the construction of the full scale exterior as well as the full scale interior mock-up of the Class F shuttlecraft, what was to become the Galileo 7, complemented by an accompanying scaled filming model, all slated to appear in the first season episode, . Winfield headed a team of 20-25 craftsmen for the two full scale mockups, as well as a team of three for the scaled miniature. (The Ships of Star Trek, p. 108) Producer Robert Justman in particular has expressed his satisfaction over the deal struck with AMT, "It was a full-scale model that the actors could walk and talk in. All it costs us was the expanse to truck it from Arizona to the set in Los Angeles." (Star Trek: The Original Series 365, p. 84) Justman had reasons to be elated, as the total construction cost came in at $24,000, double of what Production Designer Matt Jefferies had initially estimated. The fact that the costs were fully absorbed by AMT, as per agreement, served the studio well as, despite the financial windfall, the total cost of the production tallied up to $232,690, an excess of $39,190 over the average per-episode budget, initially set (shortly later lowered to $185,000) by the studio. It was the third most expensive episode of the first season. (These Are the Voyages: TOS Season One, 1st ed., pp. 307, 312)

The second instance occurred over one year later, when the company was tasked to build the D7-class model, at first at the behest of AMT itself, that wanted to do a follow-up of their highly successful  model kit. Nevertheless one of their two master tooling models was appropriated by the studio to function as a filming model for the series' third season. In both instances, Gene Winfield served as lead builder and supervisor. While their creations became signature features of the franchise, neither Speed & Custom Shop nor Supervisor Winfield, as subcontractors, were ever accorded with official credit for their contributions.

Toward the end of the 1960s, the company was relocated to Santa Monica, California. Gene Winfield left the company in 1970 in order to pursue projects of his own. AMT closed down Speed & Custom Shop the following year, due to a recession in nation wide sales of model kits. Winfield recalled, "Although the facility has never been intended to make a profit on its own, and existed only for research, development and publicity, I managed to bring the operation to break-even point before it was closed." (, issue 53, p. 28). Star Trek has been the only motion picture industry production, the company provided services to.

Staff
Thomas Kellogg - Production/Industrial Designer, subcontractor
Gene Winfield - Production Manager, Supervisor

Further reading
"Gene Winfield", James Van Hise, , issue 53, December 1981, pp. 26-29, 64 
"The Galileo Seven Shuttle Craft", The Ships of Star Trek, 1988, pp. 97-108
Model and miniature effects companies
Prop companies