The Audi Sport ABT Schaeffler team has been a regular front-runner in Formula E since winning the inaugural race back in Beijing 2014.
The technical relationship with Schaeffler has been the driving force behind the development of the powertrain, which took Lucas di Grassi to within a couple of points of the Season Two championship and finally the title in Season Three.
After the announcing the cessation of its World Endurance Championship programme in 2016, Audi has stepped up its Formula E programme to become a full factory-backed works team in Season Four.
Di Grassi and team-mate Daniel Abt have been on board since the first season, with both drivers taking multiple podium finishes.
The Abt team has a long association with Audi, not just through motorsport but also through its Sportsline aftermarket tuning division.
Formula E is the all-electric element in the Andretti Autosport stable of motorsport projects, which also includes championship-winning IndyCar and Rallycross programmes.
Andretti has taken more different drivers to the Formula E podium than any other team, but so far the top step has proved elusive.
Technical issues prevented the team from running its own powertrain in Season Two, but for Season Three its all-new ATEC-02 joined the series followed by the ATEC-03 for Season Four.
Andretti has secured a technical partnership with BMW, which will blossom into a full manufacturer programme in Season 5.
Following a tie-in with French luxury car manufacturer DS, Virgin Racing became DS Virgin in Season Two.
After being an outside contender for the title in Seasons One and Two, Sam Bird remained on board for Season Three and was joined by British driver Alex Lynn for the New York E-Prix towards the end of the season. Both drivers remain for Season Four.
For Season Two, DS Virgin was one of two teams to employ a twin-motor solution, which proved to be fast, but heavy and hard to handle, opting instead for a single motor in Season Three.
Although its relatively new brand, DS has been represented in the WRC, while Virgin has been involved in motorsport previously through sponsorship of the championship-winning Brawn F1 team and its eponymous team, which ran for two seasons in 2010 and 2011.
Dragon was founded by Jay Penske and Steve Luczo, Chairman & CEO of Seagate Technologies in 2006. It competed in the IndyCar Series from 2007 until 2014.
For Season 4, the California based team have announced that Jerome D'Ambrosio and Neel Jani will race for them.
The Panasonic Jaguar Racing team was new to Formula E for Season Three.
Jaguar has one of the richest histories in motorsport of any manufacturer, but joined Formula E to showcase its future range of electric cars.
Technical assistance in the running of the car comes from Williams.
In season four, the team have signed the inaugural FIA Formula E Champion, Nelson Piquet Jr to partner Mitch Evans, who remains at the team for a second season after his impressive Formula E debut.
Mahindra Racing has been a mainstay of Formula E since the inaugural championship, and in Season Three it finally scored its breakthrough maiden win.
Nick Heidfeld remained with the team for a second season, and the veteran of 183 F1 GPs was joined by exciting rookie Felix Rosenqvist, the 2015 F3 Euroseries Champion, who was victorious in Berlin.
Formula E is Mahindra’s first foray into international single-seater racing, but the brand had been running in 125cc/Moto3 world championship motorcycle racing since 2011.
Through its Reva division Mahindra is also a manufacturer of electric cars, and has stated its desire to showcase its EV technology through its Formula E exploits.
NIO Formula E Team is the evolution of the team that started off as Team China Racing and carried Nelson Piquet Jr to the inaugural drivers’ championship.
Piquet remained with the team for a third season, and was partnered by Oliver Turvey for a second straight campaign.
When the powertrain rules were opened up for Season Two, NIO Formula E Team (then called NextEV) opted for a twin motor solution. It decided to stick with this for Season Three, making it unique among the ten teams.
Alongside the NIO Formula E Team is road car brand by the same name. In 2016 it unveiled the EP9 all-electric supercar, which set a new lap record of the Nurburgring for a road car.
Renault e.dams has claimed a hat-trick of Formula E teams' titles and the Season Two drivers’ title during a remarkable spell in Formula E.
Season Two champ Sebastien Buemi is the most successful driver in the series, while team-mate Nico Prost is also a multiple race winner, making the team the only one in the championship to have carried both its drivers to victory.
Renault has a long an illustrious history in motorsport that dates back to victory in the first-ever ‘Grand Prix’ held at Le Mans in 1906.
DAMS is one of the most successful teams to have ever competed in the junior categories, with multiple titles in F3000, GP2 and A1GP.
Renault has used its Formula E pedigree to create stunning all-electric concept cars, with the TreZor and Symbioz making their debut at the Paris and Frankfurt motor show respectively.
Four-time Formula 1 world champion Alain Prost and DAMS founder Jean-Paul Driot have presided over the team's hugely successful run.
TECHEETAH is a new team created for season three of the FIA Formula E Championship, taking over the entry previously held by Team Aguri.
The Chinese-based team has employed the fast and experienced Jean-Eric Vergne and Stephane Sarrazin for its first entry into the world of motorsport. Chinese racer Ma Qing Hua and ex-F1 racer Esteban Gutierrez also drove for the team during the season.
For its maiden season it purchased a customer supply of powertrains from defending champions Renault e.dams and scored its first Formula E points in Morocco, while Vergne capped an impressive debut season by securing TECHEETAH's first win in Montreal.
As well as racing in the FIA Formula E Championship, Venturi is also an electric land-speed record-breaking constructor.
Based in Monaco, the team can trace its racing history back to a brief stint in Formula 1 in 1992.
For Season Four Maro Engel remains with the team after Season Three, with Edoardo Mortara securing a full-time drive, replacing Tom Dillmann.