Apparatus to make a wire mesh comprising: - a welding unit, - a first feeder configured to feed longitudinal wires, - a second feeder configured to feed, on each occasion, at least one transverse wire into said welding unit, - a positioning unit configured to receive from said first feeder a plurality of said longitudinal wires, disposed parallel to a first direction and distanced according to a pre-set pattern on a support plane defined by at least one positioning device, wherein said at least one positioning device is configured to move said longitudinal wires keeping them parallel and distanced from each other in a direction of movement orthogonal to said first direction, said positioning device comprising a plurality of housing seatings configured to receive at least one of said longitudinal wires, wherein said plurality of housing seatings are associated with a support element and are reciprocally distanced from each other by a predetermined pitch, comprises at least one of either a chain, a belt, a conveyor belt, a cable, wherein the support element develops in a closed ring and winds around return rollers, and wherein the support element defines a first return segment, facing upward during use, and configured to define said support plane, and a second return segment opposite the first return segment, and facing downward during use, and wherein a first part of the first return segment is positioned in the preparation zone while a second part of the first segment, consecutive to the first return segment, is positioned in the delivery zone, > - wherein said positioning unit further comprises lifting members able to lift the longitudinal wires above the support plane, and remove them from the housing seatings, - a plurality of gripping members each having a respective removal gripper and each configured to remove one of said longitudinal wires from said positioning unit and to transfer them in respective directions of feed (A1, A2, A3, A4, A5, A6) and toward said welding unit, said directions of feed (A1, A2, A3, A4, A5, A6) being located reciprocally distanced from each other in a desired manner, << the removal grippers have a gripping amplitude greater than or equal to the pitch between continuous housing seatings >> wherein said positioning unit comprises a preparation zone and a delivery zone adjacent to each other in a direction parallel to said direction of movement, said gripping members being located in said delivery zone, and said preparation zone having a width, in a direction parallel to the direction of movement, at least equal to or greater than the width of said delivery zone, <<< said lifting members each comprising a support plane with a substantially flat shape, >>> characterised in that: - the support element to which said plurality of seatings are associated < - >, - « - ». - a welding unit, - a first feeder configured to feed longitudinal wires, - a second feeder configured to feed, on each occasion, at least one transverse wire into said welding unit, - a positioning unit configured to receive from said first feeder a plurality of said longitudinal wires, disposed parallel to a first direction and distanced according to a pre-set pattern on a support plane defined by at least one positioning device, wherein said at least one positioning device is configured to move said longitudinal wires keeping them parallel and distanced from each other in a direction of movement orthogonal to said first direction, said positioning device comprising a plurality of housing seatings configured to receive at least one of said longitudinal wires, wherein said plurality of housing seatings are associated with a support element and are reciprocally distanced from each other by a predetermined pitch, comprises at least one of either a chain, a belt, a conveyor belt, a cable, wherein the support element develops in a closed ring and winds around return rollers, and wherein the support element defines a first return segment, facing upward during use, and configured to define said support plane, and a second return segment opposite the first return segment, and facing downward during use, and wherein a first part of the first return segment is positioned in the preparation zone while a second part of the first segment, consecutive to the first return segment, is positioned in the delivery zone, > - wherein said positioning unit further comprises lifting members able to lift the longitudinal wires above the support plane, and remove them from the housing seatings, - a plurality of gripping members each having a respective removal gripper and each configured to remove one of said longitudinal wires from said positioning unit and to transfer them in respective directions of feed (A1, A2, A3, A4, A5, A6) and toward said welding unit, said directions of feed (A1, A2, A3, A4, A5, A6) being located reciprocally distanced from each other in a desired manner, << the removal grippers have a gripping amplitude greater than or equal to the pitch between continuous housing seatings >> wherein said positioning unit comprises a preparation zone and a delivery zone adjacent to each other in a direction parallel to said direction of movement, said gripping members being located in said delivery zone, and said preparation zone having a width, in a direction parallel to the direction of movement, at least equal to or greater than the width of said delivery zone, <<< said lifting members each comprising a support plane with a substantially flat shape, >>> - the support element to which said plurality of seatings are associated < - >, - « - ».