It was revealed on Saturday that waste management company Transpacific Industries will cut 200 jobs in New Zealand and Australia, while Telecom last week said it was considering job cuts in the hundreds to reduce costs.
Mr Reid and other union bosses say there are many workers legitimately worried about their futures.
"The job losses will keep coming, there's no doubt [and] that's right across the economy. Even in the sectors doing well there are still job reductions," he said.
"It just keeps on keeping on and there just doesn't seem to be any let-up."
The cuts were overloading an already tight jobseekers' market, Mr Reid said.
"It doesn't surprise me because we've been consistently saying that we've got a jobs crisis and the Government seems to try and bat it off, saying we're in a flexible market and that's just garbage," EPMU organiser Joe Gallagher said.
100s of jobs at risk at Telecom
300 at risk at print company Geon Group, 200 at Transpacific Industries
450 axed at Solid Energy - 1200 more under review
100+ under threat at Contact Energy
192 to go at Summit Wool Spinners
200 at Mainzeal.