Mathmos Limited[1][2] is a British company that sells lighting products, most famously the lava lamp invented by its founder Edward Craven Walker.

[3] The rights to produce and sell the lamp on the American market for the duration of the patent were sold to Lava Simplex International, in 1966.

[citation needed] In Europe Craven-Walker’s original lava lamp designs have been in continuous production since the early 1960s and are still made today by Mathmos in Poole, Dorset, UK.

In 1989, Cressida Granger and David Mulley took over the running of Walker's original company, Crestworth, situated in Poole, Dorset, and changed the name to Mathmos in 1992.

[citation needed] Mathmos celebrated the centenary of the birth of its founder and the inventor of the lava lamp Edward Craven Walker in 2018.

Mathmos lava lamps appeared in a number of exhibitions including Pop & Protest and the Festival of Lights in Berlin that year.

Mathmos also launched its second sell-out collaboration with Pretty Green and had a dedicated programme on its British production process as part of ITV's Made in Britain series.