Sard Verbinnen & Co. and Joele Frank, Wilkinson Brimmer Katcher handle media duties regarding the $16B combination of packaging giants Rock-Tenn Co. and MeadWestvaco.

Rock-Tenn, which has annual sales of $10B, is the country's No. 2 maker of corrugated boxes after International Paper.

MeadWestvaco trails only Graphic Packaging Holding when it comes to thin paper cartons for goods such as cereal boxes.

Rock-Tenn CEO Steven Voorhees, said deal joins "two highly complementary organizations" that have an "exceptional cultural fit."

He'll helm the combined yet unnamed new Richmond-based company, supported by MeadWestvaco CEO John Luke, who will become non-executive chairman.

SVB's Bryan Locke, Carissa Felger and Elizabeth Smith rep Rock-Tenn, while JFWBK's Steven Frankel and Joseph Snodgrass work MeadWestvaco.