Bolliger and Mabillard

Bolliger & Mabillard Consulting Engineers Inc.

Type	Private
Industry	Roller coaster design
Founded	1988
Founder	Walter Bolliger Claude Mabillard
Headquarters	Monthey, Switzerland
Area served	Worldwide
Key people	Walter Bolliger Claude Mabillard
Products	Stand-Up Coaster (1990 – ) Inverted Coaster (1992 – ) Sitting Coaster (1993 – ) Dive Coaster (1998 – ) Hyper Coaster (1999 – ) Floorless Coaster (1999 – ) Flying Coaster (2002 – ) Wing Coaster (2011 – ) Family Coaster (2014 – )
Number of employees	37 (2012)
Website	Official website

Bolliger & Mabillard, /bɑːləɡərændmɑːbiːjɑːrd/ officially Bolliger & Mabillard Consulting Engineers Inc., and often abbreviated B&M, is a roller coaster design consultancy based in Monthey, Switzerland. The company was founded in 1988 by Walter Bolliger and Claude Mabillard, with Bolliger as president and Mabillard as vice-president. B&M has built over a hundred roller coasters around the world and pioneered several new ride technologies, most notably the inverted roller coaster. In North America, B&M coaster designs have been manufactured by Ohio company Clermont Steel Fabricators since 1990. B&M has grown significantly since its founding, originally employing four to as many as 37 in 2012, consisting primarily of engineers and draftsmen. In 2016, the company completed its 100th roller coaster.

Walter Bolliger and Claude Mabillard started working for Giovanola, a manufacturing company who supplied rides to Intamin, in the 1970s. During their time at Giovanola, they helped design the company's first stand-up roller coaster, Shockwave at Six Flags Magic Mountain. They also worked on other projects, such as Z-Force at Six Flags Great America. Bolliger & Mabillard left Giovanola, but the company continued to use their track design, so the company's roller coasters, Goliath at Six Flags Magic Mountain and Titan at Six Flags Over Texas, use a track style very similar to B&M's.