Below is a map with the location of the design centers and R&D departments of the major motorcycle brands and some renowned independent design studios worldwide (non-exhaustive).
North America
1 - Honda R&D America. USA / Los Angeles. Develops new concepts and designs for future Honda automobiles, motorcycles and ATV.
2 - Piaggio advanced design cente. USA / Pasadena CA.
3 - GK Design Internationa. USA / Garden Grove CA.
4 - American Kawasaki Motorcycle Corp. USA / Foothill Ranch, California. Brand improving, product development (ATVs, RUVs, watercrafts and utility vehicles) and sales planning.
5 - Polaris Industries - Victory - Indian - Industrial Design team. USA / Wyoming MN.
6 - Harley Davidson. USA / Milwaukee WI.
South America
7 - Honda R&D Brazil. Brazil / São Paulo. Develops new concepts and designs for future Honda automobiles and motorcycles.
Europe
8 - Xenophya Design. UK / Cramlington.
9 - Triumph Motorcycles. UK / Hinckley.
10 - Chris Hennegan Design (CHD). UK / Kenilworth, Warwickshire.
11 - Renfrew Group International. UK / Leicester.
12 - GK Design Europe. Netherlands / Amsterdam.
13 - Design BMW Motorrad. Germany / Munich.
14 - KTM R&D Department. Austria / Mattighofen.
15 - KTM Technologies. Austria / Anif.
16 - Kiska Designing Desire. Austria / Anif.
17 - Centro Stile Suzuki Italia. Italy / Robassomero TO.
18 - Frascoli Design. Italy / Marnate VA.
19 - Yamaha Motor R&D Europe. Italy / Lesmo MB. Development processes for motorcycles and scooters mainly for European market but also for South American and Australia markets. Development process involves Product Planning, Styling, Engineering, Prototyping, and Testing.
20 - Centro Stile Piaggio Group. Italy / Pontedera PI.
21 - Ducati Design Center. Italy / Borgo Panigale BO.
22 - Centro Ricerche Castiglioni (CRC - MV Agusta). Republic of San Marino / Borgo Maggiore.
23 - CentroStile Benelli. Italy / Pesaro.
24 - Honda R&D Europe. Italy / Roma. Creates future Honda motorcycle design concepts.
Asia (except Japan)
25 - Yamaha Motor Research & Development India. India / Surajpur, Uttar Pradesh.
26 - Honda R&D India. India / New Delhi. Develops new concepts and designs for future Honda motorcycles
27 - TVS Motor Company - R&D Styling Department. India / Hosur, Tamil Nadu.
28 - Yamaha Motor Research & Development India. India / Kanchipuram district.
29 - Honda R&D Southeast Asia. Thailand / Bangkok. Develops new concepts and designs for future Honda motorcycles
30 - PT Honda R&D Indonesia. Indonesia / Jakarta. Responsible for the market research, concept development and styling design of Honda automobiles and motorcycles.
31 - Way Design. China / Jiading District, Shanghai.
32 - Yamaha Motor R&D Shanghai. China / Shanghai City.
33 - Yamaha Motor R&D Taiwan Co., Ltd. Taiwan / Chunli City, Taoyuan. Development of motorcycles, including product planning and styling.
Japan
34 - Honda Motorcycle R&D Center. Japan / Kumamoto.Develops new concepts and designs for future Honda motorcycles.
35 - Kawasaki - Akashi Works. Japan / Akashi. Development and production of motorcycles, Jet Ski, ATV, RUV, engines.
36 - Suzuki - Hamamatsu design center. Japan / Hamamatsu, Shizuoka.
37 - Yamaha Motor Innovation Center. Japan / Iwata, Shizuoka. Development and innovations in various activities of product design, including the concepts of "GEN" series.
38 - Motorcycle R&D Center. Japan / Saitama, Asaka. Develops new concepts and designs for future Honda motorcycles.
39 - GK Dynamics. Japan / Tokyo.
40 - Suzuki - Yokohama R&D Advance Design. Japan / Yokohama, Kanagawa.
Sources: BMW-Motorrad, Harley Davidson, Honda, Kawasaki, KTM, MV Agusta, Suzuki, Triumph Motorcycles, Yamaha, Piaggio Group, Polaris Industries, GK Design Group, Xenophya Motorcycle Design, Chris Hennegan Design, Kiska Designing Desire, Frascoli Design, Way Design.