1995–1998: Toy Machine, Welcome to Hell

Although she received a concurrent offer from Real Skateboards to ride the company's decks, Steamer first began receiving skateboard decks from Lance Mountain in 1995, who was running a company named "The Firm" at the time.^[2]

Steamer's first official skateboard deck sponsor was Toy Machine, founded and owned by professional skateboarder, Ed Templeton. Professional skateboarder, Chad Muska, then a leading member of the Toy Machine team, facilitated Steamer's sponsorship; at the time of Steamer's acceptance, Toy Machine consisted of Templeton, Muska, Mike Maldonado, Jamie Thomas, and Brian Anderson.^[3]

Steamer subsequently filmed for her Welcome to Hell video part, a 1996 project primarily driven by Thomas, who temporarily resided with Steamer in Fort Myers to undertake the camera work for Steamer's section in the video. Steamer remained with the company following Thomas and Muska's departure and contributed a video part for Toy Machine's next film project, Jump Off A Building.^[3]

1998–2003: Baker, Baker 2G, Bootleg

Following the departure of numerous co-riders from Toy Machine, Steamer informed Templeton by telephone that she was also leaving and joined the Bootleg brand which was founded as a sub-division of the Baker skateboard company. Bootleg was distributed by the NHS, Inc. company (Independent, Creature, Santa Cruz) and Steamer's involvement was a progression of her personal connection to skateboarders such as Andrew Reynolds and Erik Ellington. Bootleg was founded by Jay Strickland, who also cofounded the Baker brand with Reynolds, and was a short-lived, month-long venture that ended following a video release, Bootleg 3000.^[4]

Prior to Bootleg 3000, Steamer's video parts were included in the Baker Bootleg and 2G videos.^[5][6] Steamer stated in 2014 that her highest paycheck from skateboard deck royalties was received during her time with Bootleg.^[7]

2004–2011: Zero, Fourth X Games gold

Steamer was provided with a three-month paycheck following the demise of Bootleg in 2004, and Frank Gerwer, a professional skateboarder who lived with Steamer, attempted to negotiate a sponsorship deal with the Anti-Hero brand that he also rode for, but was ultimately unsuccessful.^[7] Thomas, who had by this time founded his own skateboard company, Zero, asked Steamer to ride for the brand, and she joined the Zero team in June 2006.^[8]

Following Steamer's transition to Zero, she filmed a shared video part with Thomas, who had not amassed enough footage for a full-length part. Steamer never filmed a full-length video part while she was a member of the Zero team (Thomas has stated in an online interview that Steamer never released a full-length part due to insufficient involvement with the company's filmers and a tendency to lose momentum due to outside distractions).^[9]

At the 2008 X Games event in Los Angeles, US, Steamer won her fourth X Games gold medal in the Women's Street event. The women's category was introduced in 2004 and 2007 was the only year that Steamer did not win gold, as she won silver after Marisa Dal Santo. Following her victory, Steamer explained to the New York Times that she felt like vomiting for the entire duration of the contest and attributed the issue to "old age". At the time, Mimi Knoop, a professional vert skater and vice president of the Action Sports Alliance, a nonprofit association of professional women's skateboarders, said that "Elissa has paved the way for those girls in street and set the bar ability-wise for all those girls that are coming up."^[10]

Steamer eventually parted ways with Zero in July 2011 and explained in an ESPN interview:

Me and Jamie [Thomas] have been friends for a long time. It was a difficult decision to make. It's hard enough to make career decisions let alone those heavy ones. It's like breaking up with someone, you know? Zero was five years of my life. Of course I'm thankful for that. And Jamie hooked me up.^[8]

2012–present: Gnarhunters, Return to Baker

In late September 2013, Steamer launched a collaboration with the FTC skateboard shop/brand entitled "Gnarhunters." Steamer explains in the promotional video that, as of the FTC collaboration, Gnarhunters is a "project," but will eventually become a brand. Steamer received artistic support from professional skateboarders Brian Anderson and Frank Gerwer, as well as professional artists.^[11][12] As of July 2014, the company is registered in the American city of San Francisco.^[7] In June 2018, Bakerboys Distribution's Shake Junt released an Elissa Steamer guest board along with a 'Ride or Die' web short featuring recent skatepark footage. Later in the same month, Baker Skateboards introduced Steamer to the pro team, releasing her first signature board for the brand. As of 2021, Gnarhunters is distributed by Baker Boys Distribution.

1998

• 1st place, Slam City Jam, Women's Street, Canada

1999

• 1st place, Slam City Jam, Women's Street, Canada

2003

• 1st place, World Cup of Skateboarding, Women's Street, Melbourne, Australia

2004

• 1st place, Gallaz Skate Jam, Melbourne, Australia
• 1st place, Triple Crown, Women's Street, Cleveland, Ohio, US
• Gold, X Games, Women's Street, Los Angeles, California, US^[10]
• 1st place, Gravity Games, Women's Street, Cleveland, Ohio, US
• 1st place, Triple Crown Finals, Women's Street, Huntington Beach, California, US
• 1st place, Slam City Jam, Women's Street, Vancouver, British Columbia, Canada

2005

• 1st place, World Cup of Skateboarding, Women's Street, Melbourne, Australia
• 1st place, World Championships of Skateboarding, Münster, Germany
• Gold, X Games, Women's Street, Los Angeles, California, US^[10]
• 1st place, Malaysia X Games, Women's Street, Malaysia

2006

• Gold, X Games, Women's Street, Los Angeles, California, US^[10]

2007

• Silver, X Games, Women's Street, Los Angeles, California, US^[10]

2008

• Gold, X Games, Women's Street, Los Angeles, California, United States (US)^[16]