Ancient Iron Smelting
Ancient Iron Smelting and Iron Smithing, Archaeological and Archaeometallurgical Research in Jordan (Tell Hammeh), Israel (Tel Beth-Shemesh), and the Westbank (Khirbet Balamah), Historical, Technological, Metallurgical, and Ethnographical Information on Iron Production (including Sub-Saharan Africa)
http://www.ironsmelting.net

Pyromet Technologies (Pty) Ltd
Pyromet is a South African company that specialises in smelting technology and equipment. Pyromet was founded in 1984 to supply electric arc furnace technology to the ferroalloy and base metal industries.
http://www.pyromet.co.za/

Abel Metal Services Pty Ltd
Manufacture and distribute metallurgical consumables for welding, hardfacing, steelmaking, smelting, foundry, or diecasting. Sydney, Australia.
http://www.abelmet.com.au/

Paber Aluminum Technologies
Specializing in the smelting, transformation and casting of aluminum.
http://www.paber-alu.com

United Recycling Industries
Sims Recycling Solutions is the industry leader in providing environmentally responsible, domestic electronic recycling, remarketing, asset management, and precious metal refining solutions.
http://www.unitedrecycling.com

Midwest Refineries
A gold, platinum, silver buyers, smelters, refiners. Gold buyers for all precious metal scrap gold, platinum and silver recycling, dental gold and gold scrap jewelry, platinum crucibles, platinum thermocouple wire, silver, sterling silver, assayers, Midwest Refineries, sell gold, sell platinum, sell silver. A gold refinery, platinum refiners and silver smelters to recover old scrap gold at gold market prices. Buyers of karat gold to pure gold and gold bullion and all palladium, platinum and rhodium scrap metal including all precious metals.
http://www.midwestrefineries.com

The Goltepe/Kestel Project
This project is an investigation of a Bronze Age mining district and the associated town where metallurgical installations, including evidence for tin smelting have been discovered.
http://oi.uchicago.edu/OI/PROJ/GOL/Goltepe.html

JBR Recovery Ltd
JBR Recovery Ltd is one of the UK and Europe's leading silver recovery and precious metal recycling specialists, offering smelting, refining and photographic waste recycling and recovery, waste incineration, waste management and Good delivery 999 refined silver
http://www.jbr.co.uk/

Commercial Alloys
Packages and recycles aluminum scrap metal and aluminum ingot for customer resale or conversion to primary and secondary aluminum smelting operations.
http://www.aluminumscrap.com/

Materials Science-Based Archaeology Group
Oxford University research group studying all aspects of the metallurgical process, from smelting to metal finishing, and from the first use of alloys in the 5th/4th millennia BC to the Industrial Revolution.
http://users.ox.ac.uk/~salter/