Sefydlwyd DMM Engineering ym 1981 i weithgynhyrchu cynhyrchion diogelwch ar gyfer gweithgareddau mynydda a diwydiannol, ac ar yr adeg honno roedd 4 o bobl yn gweithio iddo. Ers hynny, mae'r cwmni wedi tyfu gan bwyll ac mae bellach yn cyflogi dros 190 o bobl. Mae ganddo drosiant o dros £12.5 miliwn ac allforion yw mwy na 60% o werthiannau'r cwmni.
DMM Engineering was founded in 1981 to manufacture mountaineering and industrial safety products and at the time had four employees. Since then DMM has experienced steady and sustained growth and now employs more than 190 people with a turnover of over £12.5 million and exports accounting for more than 60% of the company’s sales.