The campaign against Air Passenger Duty is close to its goal of 100,000 supporters.
Last week the Fair Tax on Flying group said 85,000 had backed the cause, emailing their MPs.
Today six new organisations announced their support and the campaign organisers, who want to remain tight-lipped about exact numbers, say they are ‘very close’ to the 100,000 target.
The Greater Manchester Chamber of Commerce, Wales Air Forum, Birmingham Chamber of Commerce, Definite Caribbean, Multicom and Newmont Travel have all joined the campaign asking the treasury to review the impact of APD levels.
Jerry Blackett, CEO of the Birmingham Chamber of Commerce Group, said: "Perversely the markets that we need to be exporting to: China, India, Brazil and Mexico for example, incur some of the highest levels of APD.
"If we are serious about an export-led recovery then we need to ensure our aviation taxes are competitive and fair."
Lindsay Ingram, general manager of Newmont Travel Ltd, said: "If the Government wants to use travel to bring in more taxation, they need to encourage more travel rather than stifle it."
