SFO ATCT GND CTLR BECOMES CONFUSED WITH 2 COMMUTERS TAXIING OUT FROM THE SAME LOCATION WITH SIMILAR CALL SIGNS.

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DEPARTING THE AIRLINE RAMP WE WERE CLRED TO TAXI TO RWY 1L VIA TXWY A THEN TXWY M. I READ BACK THE CLRNC AND WE STARTED TAXIING. WHILE ON TXWY A; ACFT Y CHKED IN WITH GND. I DIDN'T HEAR THEIR INITIAL TAXI CLRNC BUT GND LATER CALLED THEM BACK AND REVISED IT TO TXWYS A; D; B BECAUSE ACFT Z WAS PUSHING ONTO TXWY A. WE WERE JUST COMING UP ABEAM ACFT Z ON TXWY A WHEN GND DEMANDED TO KNOW WHERE WE WERE GOING. THE CAPT STOPPED THE ACFT ON TXWY A SHORT OF TXWY E WHILE I TOLD GND THAT WE WERE GIVEN TXWYS A; M. HE SAID; NO I CLRED YOU TXWYS A; D; B. I SAID; WELL SOMEONE ELSE MAY HAVE READ BACK OUR CLRNC. HE SAID 'THAT'S UNFORTUNATE' IN A CONDESCENDING TONE. HE THEN ASKED COMPANY BEHIND US TO VERIFY THEIR CLRNC AND THEY SAID TXWY A; M. GND THEN GOT UPSET AND DEMANDED TO KNOW WHY NOBODY WAS FOLLOWING HIS INSTRUCTIONS. HE ISSUED TXWYS D; B TO COMPANY BEHIND US AND SEQUENCED THEM IN FRONT OF US. HE TOLD US TO REMAIN WHERE WE WERE; IN A VERY DEROGATORY TONE AND THEN ONCE COMPANY WAS IN FRONT; CLRED US TO CONTINUE ON TXWY A. WE DID NOT INTERFERE WITH ACFT Z; PUSH AND CAUSED NO TFC PROBS THAT WE WERE AWARE OF. CONTRIBUTING TO THE CONFUSION WAS THE SIMILAR CALL SIGNS OF US AND COMPANY WITH THOSE BEING ACFT X; AND ACFT Y. I BELIEVE GND ISSUED THE AMENDED CLRNC OF TXWY A; D; M TO ACFT Y BELIEVING IT TO BE US; ACFT X SINCE WE WERE IN FRONT. THE GND CTLR'S NEGATIVE ATTITUDE DID NOT HELP MATTERS MUCH AT ALL. WE CONTINUED TO THE RWY WITH NO FURTHER CONFUSION.