Commercial Fixed Wing
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 57.83; Flight Crew Total 2860.83; Flight Crew Type 38.00
Communication Breakdown
Conflict Ground Conflict; Critical; Deviation / Discrepancy - Procedural Published Material / Policy; Ground Event / Encounter Aircraft
Aircraft Aircraft Damaged; Flight Crew Returned To Gate; General Flight Cancelled / Delayed; General Maintenance Action
Human Factors
After pushback from gate X and start and the after start checklist was complete we received a salute and cleared to taxi from the ground crew.  The FO called and received a taxi clearance for [spot]; after we received our taxi clearance I heard ramp control clear '[other company flight]  cleared to push when able'.  The Captain began taxing and we all noticed a bump like we ran over a chock. At that time we stopped and received notification from ramp control to hold position which at that time we made the realization that we had made contact with another aircraft.   Followed by a ramp agent coming out to tell us hold position.
After push back and cleared by ramp crew; check list complete we were cleared to taxi;  FO said clear right and I said clear left.  We started to taxi and with in 10 feet felt the airplane shake as if we run over a chock; we stopped not knowing what happened and soon found out our wing right wing tip had hit the left tip of the aircraft that pushed next to us.
Air carrier flight crew reported a critical ground conflict during the start of taxi with an aircraft that had partially pushed back from nearby gate.