Mainframe Studios
A Canadian animation studio that helped pioneer computer-generated television animation and produces series, films, specials and other animated media for global partners.
Last updated October 14, 2026
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Overview
Mainframe Studios is a Canadian animation studio headquartered in Vancouver, British Columbia. Established in 1993 as Mainframe Entertainment Inc., it was formed by producer Christopher Brough and the British animation team known as The Hub: Gavin Blair, Ian Pearson, Phil Mitchell and John Grace. The founders sought to produce ReBoot, a television project designed around computer-generated imagery at a time when CGI was still uncommon in television production. Vancouver offered proximity to Los Angeles, favorable production economics and Canadian tax incentives, making it a practical base for the new studio. ReBoot premiered in 1994 on ABC in the United States and YTV in Canada. It became the first fully computer-animated half-hour television series and established Mainframe as one of the most visible early contributors to CGI entertainment. The studio followed it with Beast Wars: Transformers, known as Beasties in Canada, a computer-animated reimagining of Hasbro's Transformers property. Beast Wars ran from 1996 to 1999 and was followed by Beast Machines from 1999 to 2000. These productions helped demonstrate that computer animation could support serialized television storytelling rather than only short-form visual effects or theatrical experimentation. Mainframe expanded through partnerships, public financing and work for major entertainment and consumer-product companies. Alliance Communications initially held a substantial interest in the business, while Mainframe became publicly traded on the Toronto Stock Exchange in 1997. The company also opened a Los Angeles division in 1998 and received a major investment from IMAX in 1999 for a proposed stereoscopic feature-film joint venture. Although the planned Gulliver's Travels, Pied Piper and Pandora's Box projects were not completed, the investment reflected the studio's ambition to move beyond television. The studio's business encountered financial and strategic pressure in the early 2000s. After losses in fiscal years 2002 and 2003, IDT Corporation acquired a majority stake in 2003. Mainframe subsequently focused more heavily on direct-to-video productions, television specials, effects work and creative services. Its collaboration with Mattel began with Barbie in the Nutcracker in 2001. The film sold more than 3.4 million units in its first year according to the cited reference material, helping establish a long-running production relationship in which Mainframe and its successor companies created numerous Barbie films and later television content. Rainmaker Income Fund acquired control of Mainframe from IDT in 2006 and completed the acquisition of the remaining interest. The company was renamed Rainmaker Animation in 2007 and later Rainmaker Entertainment. Its work broadened to include theatrical animation, television production, visual development and animation for video games, including credits associated with Ghostbusters: The Video Game and Prototype. Rainmaker's theatrical releases included Escape from Planet Earth in 2013 and Ratchet & Clank in 2016. The latter performed poorly and led to a reported impairment charge, contributing to the abandonment of planned theatrical work on a Sly Cooper adaptation. In 2013, Rainmaker revived the Mainframe Entertainment name for a television-production division. In 2016, Rainmaker announced a combination with Frederator Networks and Ezrin-Hirsh Entertainment under the holding company Wow Unlimited Media. The resulting corporate reorganization used Mainframe Studios and Rainmaker Studios as separate operating identities. Mainframe subsequently worked on projects including ReBoot: The Guardian Code, Barbie: Dreamhouse Adventures and Spy Kids: Mission Critical. On March 16, 2020, the studio announced that it would consolidate the Rainmaker Studios operations under the Mainframe Studios name, completing its return to the Mainframe identity. The company adopted remote-work measures during the COVID-19 pandemic. In 2021, it annou…
History
Mainframe Studios began in Vancouver in 1993 as Mainframe Entertainment Inc. Its founders were producer Christopher Brough and four members of the British animation group The Hub: Gavin Blair, Ian Pearson, Phil Mitchell and John Grace. Their initial objective was to produce ReBoot, a television series built entirely around computer-generated animation. The decision to establish the company in Canada reflected Vancouver's location near Los Angeles, available production incentives and the high cost of transporting specialized equipment to Britain. ReBoot premiered in 1994 on ABC in the United States and YTV in Canada. It became the first fully computer-animated half-hour television series and made Mainframe a prominent early participant in the development of CGI television. The studio's next major property was Beast Wars: Transformers, a computer-animated relaunch of Hasbro's Transformers franchise. It debuted in 1996, ran through 1999 and was followed by Beast Machines from 1999 to 2000. Both series broadened the audience for serialized CGI and became important examples of commercially successful computer animation for television. Alliance Communications was involved in the production and ownership structure of the early company. Mainframe paid $17 million in 1996 to reduce Alliance's interest, and the company completed a Toronto Stock Exchange listing on June 17, 1997. Despite the visibility of its programs and their awards, Mainframe reported an $11 million loss in its first year as a public company. It opened a Los Angeles division in April 1998 under Dan DiDio to handle development, production oversight and local distribution. In 1999, IMAX invested $16 million and obtained approximately 30 percent of the company, with the parties proposing a joint venture for stereoscopic animated features. The planned projects were not completed. Mainframe's financial results improved temporarily as it delivered Beast Machines, Beast Wars, Shadow Raiders, Weird-Ohs, Heavy Gear and Action Man. The company reported profits in fiscal 2000 and 2001, but its management structure changed as Pearson departed in 2001 and Blair and Mitchell later left. The Mattel relationship, which began with Barbie in the Nutcracker in 2001, became one of the studio's most durable commercial relationships. The direct-to-video film sold more than 3.4 million units in its first year according to the reference material, leading to many further Barbie films and television projects produced by Mainframe and its successors. The company returned to difficulty in fiscal 2002 and 2003, reporting losses of $18.9 million and $7.5 million respectively. IDT Corporation announced in September 2003 that it would purchase 56 percent of Mainframe for $14 million. Around this period, the cancellation of Spider-Man: The New Animated Series contributed to a shift away from regular television series. Proposed projects such as a preschool ReBoot spin-off called Binomes and a live-action adaptation of Harriet the Spy did not proceed. Mainframe instead concentrated on direct-to-video work, specials, distribution and animation services. It also acquired distribution rights to Zixx and animated its later seasons with Thunderbird Films. The company expanded its creative-services work in 2005, producing video-game cut-scenes, trailers, motion graphics, title sequences and branding. Its credits included work connected with Prototype, 50 Cent: Blood on the Sand and Ghostbusters: The Video Game, as well as visual work for the MTV Movie Awards. Rainmaker Income Fund acquired IDT's 62 percent stake in July 2006 and announced its intention to acquire the balance. Mainframe became Rainmaker Animation in January 2007, and the business was later known as Rainmaker Entertainment after Rainmaker sold its visual-effects and post-production divisions. Rainmaker's proposed sale to China's Xing Xing Digital in 2012 was not completed. The company released Escape from Planet Earth in 2013, its first theatrical feature, followed by Ratchet & Clank in 2016. Escape from Planet Earth had mixed critical reception but achieved moderate worldwide box-office results; Ratchet & Clank was a financial disappointment and led to a reported impairment charge. Rainmaker also revived Mainframe Entertainment as a television-production label in 2013. In October 2016, Rainmaker announced a merger with Frederator Networks and Ezrin-Hirsh Entertainment under Wow Unlimited Media. The reorganization used Mainframe Studios and Rainmaker Studios as operating identities. Mainframe worked on projects including ReBoot: The Guardian Code, Barbie: Dreamhouse Adventures and Spy Kids: Mission Critical, and produced a traditionally animated pilot in 2019. On March 16, 2020, the studio announced that Rainmaker Studios would be consolidated into Mainframe Studios. During the COVID-19 pandemic it introduced remote-work measures. In 2021, it announced a 2D-production pipeline for a Guava Juice-inspired series and a virtual Toronto studio. The modern company thus combines the original CGI expertise with 2D animation, series, films, specials, franchise production and creative services.
- 2021
2D pipeline and Toronto virtual studio
[1]Mainframe announces a 2D-animation pipeline and a virtual Toronto studio.
- 2020
Final rebrand to Mainframe Studios
[1]Rainmaker Studios is consolidated under the Mainframe Studios identity.
- 2016
Wow Unlimited Media is formed
[1]Rainmaker's combination with Frederator Networks and Ezrin-Hirsh Entertainment creates the Wow Unlimited Media holding company.
- 2013
Mainframe name returns for television production
[1]Rainmaker revives the Mainframe Entertainment brand for a television-production division.
- 2007
Renamed Rainmaker Animation
[1]Following Rainmaker's acquisition, Mainframe is renamed Rainmaker Animation.
- 2001
Barbie in the Nutcracker begins the Mattel relationship
[1]Mainframe produces Barbie in the Nutcracker, establishing a long-running production relationship with Mattel.
- 1997
Toronto Stock Exchange listing
[1]Mainframe becomes a publicly traded company on the Toronto Stock Exchange.
- 1996
Beast Wars: Transformers debuts
[1]Mainframe begins the CGI Transformers series Beast Wars, known as Beasties in Canada.
- 1994
ReBoot premieres
[1]ReBoot launches in the United States and Canada and becomes the first fully computer-animated half-hour television series.
- 1993
Mainframe Entertainment is founded
[1]Christopher Brough and members of The Hub establish Mainframe Entertainment in Vancouver to develop computer-animated television content.
Products and positioning
A production-focused animation studio positioned around technically ambitious CGI, children's and family entertainment, franchise-based content, television series, feature animation and related creative services.
Computer-animated television series · 1994
ReBoot
ReBoot was Mainframe's founding project and the first fully computer-animated half-hour television series. Set in a computer system, it used CGI to support recurring characters, serialized adventures and a television production schedule. Its success established Mainframe as an early specialist in computer animation and gave the studio a recognizable original property that later received additional adaptations and reimaginings.
Computer-animated television series · 1996
Beast Wars: Transformers
Beast Wars was Mainframe's CGI relaunch of Hasbro's Transformers property. The series replaced the franchise's familiar mechanical forms with animal-based transforming characters and used computer animation for an action-oriented serialized format. It became one of the studio's defining early productions and was followed by Beast Machines, extending Mainframe's involvement with the Transformers brand.
Computer-animated television series · 1999
Beast Machines
Beast Machines continued Mainframe's work on the Transformers universe after Beast Wars. Produced from 1999 to 2000, it maintained the studio's CGI television specialization while presenting a distinct continuation of the franchise's characters and storyline.
Direct-to-video animated films and television content · 2001
Barbie animated films
Mainframe's Barbie work began with Barbie in the Nutcracker in 2001 and grew into a substantial body of direct-to-video films and later television programming made with Mattel. The productions adapted the fashion-doll property into fairy tales, musical adventures and family entertainment, helping make the Barbie screen franchise a central part of the studio's commercial output.
Theatrical animated feature · 2013
Escape from Planet Earth
Escape from Planet Earth was Rainmaker's first completed theatrical feature. Directed by Cal Brunker, it represented the company's move from television and direct-to-video production into original theatrical animation. The film received mixed critical reviews but achieved moderate worldwide box-office performance.
Theatrical animated feature · 2016
Ratchet & Clank
Ratchet & Clank adapted the Insomniac Games video-game series for theatrical animation. Released in 2016, it expanded Rainmaker's franchise-based production portfolio but performed poorly, resulting in an impairment charge and contributing to the cancellation of a planned theatrical Sly Cooper adaptation.
Animated television series · 2018
Barbie: Dreamhouse Adventures
Barbie: Dreamhouse Adventures was Mainframe's first full-length television series based on the Barbie media franchise. It extended the studio's long-running Mattel relationship from direct-to-video films into episodic television and presented the property for contemporary family audiences.
Live-action and CGI-animated television series · 2018
ReBoot: The Guardian Code
ReBoot: The Guardian Code reimagined the original ReBoot property through a hybrid format combining live-action performances with CGI animation. It demonstrated the studio's continued use of its founding brand while pursuing a different audience and production structure from the original computer-animated series.
Animated television series · 2018
Spy Kids: Mission Critical
Spy Kids: Mission Critical was an animated reboot and spin-off of the Spy Kids franchise. The project formed part of Mainframe's late-2010s expansion into recognizable family entertainment properties supplied by external rights holders.
Brand decisions
2021
Expand into 2D animation and establish a Toronto virtual studioStrategyBackground
Remote production practices developed during the COVID-19 pandemic created a basis for geographic and pipeline expansion.
Action taken
Mainframe announced a 2D-animation pipeline for a Guava Juice-inspired series and later announced a virtual studio in Toronto.
Aftermath
The announcements broadened the studio's stated production capabilities beyond its historic CGI focus.
2020
Consolidate the Rainmaker Studios identity under MainframeStrategyBackground
The company sought to return to the Mainframe name associated with its early CGI achievements.
Action taken
Rainmaker Studios was consolidated under the Mainframe Studios branding.
Aftermath
The studio continued operating as the Mainframe brand while remaining part of Wow Unlimited Media.
2016
Combine Rainmaker with Frederator Networks and Ezrin-Hirsh EntertainmentM&ABackground
Rainmaker pursued a broader animation and media holding-company structure.
Action taken
The companies were combined under Wow Unlimited Media, with the operating identities reorganized as Rainmaker Studios and Mainframe Studios.
Aftermath
Mainframe expanded its work in television and franchise animation under the new group structure.
2007
Rename the company Rainmaker AnimationStrategyBackground
Rainmaker Income Fund had acquired control of Mainframe and moved to integrate the animation business.
Action taken
Mainframe was renamed Rainmaker Animation and later operated as Rainmaker Entertainment.
Aftermath
The Mainframe name was later revived for television production and ultimately restored as the company's principal identity.
2005
Create a creative-services divisionStrategyBackground
Mainframe sought to diversify beyond series and direct-to-video productions.
Action taken
The company created a division serving video-game animation, motion graphics, title sequences, branding and related visual work.
Aftermath
The division received credits on video-game projects, trailers and awards-show production.
1999
Pursue stereoscopic animated features with IMAXStrategyBackground
IMAX invested in Mainframe as the companies explored feature-length stereoscopic animation.
Action taken
The companies established a joint venture around proposed projects including Gulliver's Travels, Pied Piper and Pandora's Box.
Aftermath
None of the three proposed films was completed.
IMAX investment. $16 million (1999)
1996
Reduce Alliance Communications' ownershipM&ABackground
Alliance Communications held a major interest in the early Mainframe business.
Action taken
Mainframe paid $17 million to reduce Alliance's stake to 15 percent.
Aftermath
Alliance later reduced its ownership further in connection with Mainframe's public offering.
Purchase payment. $17 million (1996)
Sources2 sources
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