How to improve cell signal?

My company moved my office to what is essentially a Verizon dead zone.  The only way I can get coverage is to step outside.  Inside I can't even get texts.  It looks like a signal booster will help.  I read that they need to be registered and there will be some approved ones announced at the end of 2013.  Has this list actually been announced?

Unfortunately, my company won't pay for this.  Are there any other solutions for this problem?

My phone is a Galaxy SIII, if that helps.

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