According to the company's website, they have a wide network of clients and partners across the globe. Teffco Trading is primarily focused on the export of steel products, and they are known to have customers in various regions, including the Middle East, Asia, Europe, and Africa.

The company has a strong presence in the Iranian steel market and has established relationships with major steel producers and manufacturers, which enables them to source a wide range of steel products to meet the needs of their clients. Additionally, Teffco Trading has a team of experienced professionals who work closely with customers to understand their requirements and provide customized solutions, which has helped them to build long-term relationships with customers.

Teffco Trading is an international company that has a global outlook and works with clients from many different countries, although the exact number of countries they work with does not seem to be readily available.