Using REGEXMATCH with list input

I'm trying to see if a COL A contains anything from a specified list. (if it does, I put say a '1' in COL B, or '0' if not.

I'm currently doing it this slow, insane way. (putting this formula into col B - replace 'I20' with A20 for example).

Is there a better way?

=if(REGEXMATCH(I20,"SOUTHERN"),1,0) + if(REGEXMATCH(I20,"GLASS"),1,0) + if(REGEXMATCH(I20,"HOME"),1,0) + if(REGEXMATCH(I20,"JOHN"),1,0) + if(REGEXMATCH(I20,"ENTERPRISE"),1,0) + if(REGEXMATCH(I20,"BRITISH A"),1,0) + if(REGEXMATCH(I20,"WSELECTRICAL"),1,0) + if(REGEXMATCH(I20,"VIKING"),1,0) + if(REGEXMATCH(I20,"TASCHEN"),1,0) + if(REGEXMATCH(I20,"FRANCY"),1,0) + if(REGEXMATCH(I20,"MODELSHOP"),1,0) + if(REGEXMATCH(I20,"APPLE"),1,0) + if(REGEXMATCH(I20,"CURRYS"),1,0) + if(REGEXMATCH(I20,"WATFORD"),1,0) + if(REGEXMATCH(I20,"WICKES"),1,0) + if(REGEXMATCH(I20,"LEYLAND"),1,0) + if(REGEXMATCH(I20,"IKEA"),1,0)