Question: GenArts, Inc. provides visual effects for companies like Autodesk, the multinational software corporation headquartered in which US city?

Context paragraphs:
GenArts, Inc.: GenArts, Inc. is a Cambridge, Massachusetts-based developer of visual effects software for the film, broadcast and advertising industries.  The majority of traditional video content such as movies, commercials, television shows, newscasts and music videos include at least some special effects created in a GenArts product.GenArts creates visual effects software and plugins that integrate visual effects such as glows, lightning, fire and fluids into post-production video editing software from companies like Apple, Adobe, Autodesk and The Foundry.

Blue Prism: Blue Prism is the trading name of the Blue Prism Group, a UK multinational software corporation that pioneered and makes enterprise robotic process automation software to eliminate low-return, high-risk, manual data entry and processing work.  Blue Prism is headquartered in the north of England, UK with regional offices in the US and Australia.  The company is listed on the London Stock Exchange AIM market.

Autodesk Maya: Autodesk Maya , commonly shortened to Maya, is a 3D computer graphics software that runs on Windows, macOS and Linux, originally developed by Alias Systems Corporation (formerly Alias|Wavefront) and currently owned and developed by Autodesk, Inc. It is used to create interactive 3D applications, including video games, animated film, TV series, or visual effects.

Wally Rodriguez: Wally Rodriguez was born in 1960 in Mexico City, Mexico.  Rodriguez is the current Director of Visual Effects at UPSTAIRS, a post production facility located in Miami, FL which he co-founded with Anabella Sosa.  With over 20 years of experience, he is a specialist in visual effects.  Rodriguez was also the second client to use Autodesk Flame, the premier visual effects software.

GrapeCity: GrapeCity, inc. is a privately held, multinational software corporation based in Sendai, Japan, that develops its own software products and provides outsourced product development services, consulting services, software, and Customer relationship management services.  GrapeCity also established WINEstudios, a media design and digital production facility in Japan.

Autodesk: Autodesk, Inc. is an American multinational software corporation that makes software for the architecture, engineering, construction, manufacturing, media, and entertainment industries.  Autodesk is headquartered in San Rafael, California, and features a gallery of its customers' work in its San Francisco building.  The company has offices worldwide, with U.S. locations in Northern California, Oregon, Colorado, Texas and in New England in New Hampshire and Massachusetts, and Canada locations in Ontario, Quebec, and Alberta.

Bruce Branit: Bruce Branit is an American filmmaker with a strong background in Computer graphics and visual effects.  He has received five Emmy Award nominations for his work on Star Trek.  Recently also nominated for Breaking Bad.  He is the owner of Branit FX based in Kansas City which provides visual effects work for feature television, film and commercials.  His production company Lucamax Pictures is currently developing several long and short form entertainment projects.

WeDo Technologies: WeDo Technologies (WeDo Consulting, S.A.) is a multinational software corporation headquartered in Lisbon, Portugal, that develops and delivers Enterprise Business Assurance software and services designed to support the revenue assurance and fraud management departments within an organization.

Altibase: Altibase is privately owned, a multinational software corporation that provides a relational database management system (RDBMS), headquartered in Seoul, South Korea.  The company was founded in 1999 and has offices in South Korea, United States, and China.  Altibase focuses on high-intensity transaction processing through random access memory (RAM), complementing its disk-resident database product.

SAP SE: SAP SE ( ) ("Systeme, Anwendungen und Produkte in der Datenverarbeitung" ; "Systems, Applications & Products in Data Processing") is a German multinational software corporation that makes enterprise software to manage business operations and customer relations.  SAP is headquartered in Walldorf, Baden-Württemberg, with regional offices in 130 countries.  The company has over 335,000 customers in over 180 countries.  The company is a component of the Euro Stoxx 50 stock market index.

Supporting paragraphs: GenArts, Inc. Autodesk
Answer: San Rafael, California