Huawei is facing increased spying accusations from the U.S. and its allies.
The West's security concerns surrounding Huawei, and fellow Chinese telecoms equipment firm ZTE Corp, center around China's National Intelligence Law. U.S. officials are claiming Huawei is working with the Chinese government, allowing its equipment to be used by the government for spying on Western adversaries.More news: Thunder C Nerlens Noel Released From Hospital After Fall, Diagnosed With Concussion
"The Chinese national is a businessman working for a major electronics company ... the Pole is a person known in circles associated with cyber business", Maciej Wasik, the deputy head of Poland's special services, told PAP. Huawei and Orange could not immediately be reached for comment.
The pair are set to remain in custody for at least three months and apparently face up to ten years in prison.
TVP said the security services also searched the offices of Poland's telecoms regulator, the Office of Electronic Communications, but the regulator denied this.
The allegations were that Huawei was using its kit to spy on other governments - claims the firm has strenuously and repeatedly denied.More news: Jayme Closs found alive
Huawei said in a brief statement that the company was "aware of the situation" and "looking into it" but had no further comment for now.
Huawei has been blocked in the USA since 2012 after the House Intelligence Committee report found that using the company's technology could pose a security risk.
Geopolitical tensions over Huawei intensified after its chief financial officer, who is the daughter of founder Ren Zhengfei, was arrested December 1 in Canada in connection with US accusations that the company violated restrictions on sales of American technology to Iran.
It added: "Huawei complies with all applicable laws and regulations in the countries where it operates, and we require every employee to abide by the laws and regulations in the countries where they are based".More news: Jaguar Land Rover to cut thousands of United Kingdom jobs