Founder of 5 different companies, notably: Horizonte Minerals Plc, Zinnwald Lithium Plc and GoldQuest Mining Corp. David Jonathan Hall is a British entrepreneur and businessperson who has been at the head of 8 different companies and currently is Non-Executive Chairman of Horizonte Minerals Plc (which he founded in 2006), Chairman at Compass Surgical Partners LLC, Executive Chairman for Erris Gold Resources Ltd. and Chief Executive Officer of Thani Stratex Resources Ltd. (which he founded).

He is also on the board of Octagon Properties Group Ltd., Horizonte Exploration Ltd. and Medgold Resources Corp.

In the past David Jonathan Hall occupied the position of Executive Director at Oriole Resources Plc (he founded the company in 2005), Chief Executive Officer at Zinnwald Lithium Plc (he founded the company in 2020), Chairman for Titan Health Corp., President & Chief Executive Officer at ASC Network Corp, Operations Director of Minmet Uk Ltd., Executive Vice President at Medical Care America, Inc., Chief Geologist at Minorco SA, Exploration Manager at AngloGold South America Ltd. and Non-Executive Vice Chairman at GoldQuest Mining Corp.

He received an undergraduate degree from Trinity College Dublin and a graduate degree from Queen's University.