Vertex SMB has continued on the path of signing high-profile firms as VARs with its recent agreement with Wipfli. The businesses issued a press release with the usual array of laudatory comments for each other. The nuts and bolts is Wipfli will market the Vertex SMB TaxCentral program to small and medium-sized business clients. This is the fourth reseller signing announced by the Berwyn, Pa.-based sales tax software vendor.