From Excel 2007 the maximum nested IF statements increases from 7 to 64. See here for other limit increases: Microsoft Excel Team Blog
From Excel 2007, you can use the IFERROR() function. =IFERROR(VLOOKUP(B12, $A$5:$B$8, 2, FALSE), "")
Also, if the colon must appear after the trade name, you could format them that way with a custom format. That way, even though the cell contains the word "Builder" you can make it say "Builder:" Right-click the cell, Format Cells... From the Number tab, select Custom Set Type to @:
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