Signatories were the Vietnamtourism Company, the Viet Orient Tourism Corporation, the Phu An Thinh training service company and the Saigontourane company.
Under the agreement, their workers are entitled to salary increases at least 3.3% above the regional minimum wage set by the government, dining allowances and other benefits.
Chang Hee Lee, Director of the International Labour Organisation (ILO) in Vietnam, hailed the significance of the initiative, saying that it will promote stable labour relations and enable workers to enjoy equal perks and incentives.
He added that the agreement will help Vietnam fulfill its Trans-Pacific Partnership obligations as an ILO member country.
The deal is a result of two-month negotiations involving employers and workers, with the support of the Vietnam General Confederation of Labour and the ILO.