Our rotational molding ranking comes out in this week’s print issue of Plastics News. Let’s take a look behind the numbers that make up this special report.With combined sales of more than $2.6 billion for fiscal 2020, 107 firms made the ranking this year. That’s up 3.5 percent vs. 2019. The average sales per company was $23.9 million, that’s up 10 percent.Proprietary molding makes up the biggest share among the molder, with $1.5 billion, or 60 percent of the total. Custom and captive come in at $605 million and $128 million, respectively.You may have noticed that we have fewer firms ranked this year and we can look to consolidation for the reason. Tank Holding Corp., which tops our list with estimated $420 million in related sales, includes four acquired companies from our previous list: Dura-Cast Products Inc.; Rotational Molding Inc.; Rotational Molding of Utah and Spin Products Inc. Myers Industries Inc., enters our list this year at No. 4, with $164.3 million, combining previously listed Ameri-Kart Corp. plus recently acquired Elkhart Plastics Inc. and Trilogy Plastics Inc.Stern Assembly Inc. dba Stern Rotomolding and Vista Plastic Solutions Inc. each picked up some assets from previously ranked Acrylon Plastics Inc.Pool accessories firm, SwimWays Corp. no longer does its own manufacturing, according to parent firm Spin Master Corp.’s annual report, it outsources to other rotational molders.This year, we took a step outside our traditional ranking by pulling together a directory-only listing of 47 additional rotational molding companies, for which ranking data wasn’t available. Special thanks to our research intern, Kelly Arndt, who was at the head of this effort. (You may have received a request for information from her.) These firms are listed in the print index and will be added to our data store download.We welcome 2 firms to our ranking, custom molder of Sidney, Neb., and OEM supplier, of Winkler, Manitoba. of Streetsboro, Ohio, moved up 18 spaces to rank at No. 35.Stern Assembly Inc. dba of Brainerd, Minn., moved up 16 spaces to No. 32. of St. Louis, Mich., moved up 14 spaces to rank at No. 50. of Billerica, Mass., is up 12 to rank at No. 69. of East Farnham, Quebec, moved up 10 spaces to rank at No. 43. of Walburg, Texas, moved up nine spaces to No. 84. of Faribault, Minn., moved up nine to No. 84.Ken Ross Inc. of Wylie, Texas, moved up nine spaces to tie at No. 84. of Streetsboro, Ohio, moved up nine spaces to No. 33. of Oxnard, Calif., moved up nine spaces to rank at No. 101.Make sure to check out our ranking in the August 23 print edition of Plastics News and see our website for the full listings. .We also sell the ranking data in MS Excel format, in our online data store at.If you work for a company that is missing from the ranking, we would like to include you next time. Just send a note to Hollee Keller at or mail your information to Plastics News, P.O. Box 790, Tallmadge, Ohio 44278. Or you can fill out our universal survey form online at Do you have an opinion about this story? Do you have some thoughts you’d like to share with our readers? Plastics News would love to hear from you. Email your letter to Editor at Staying current is easy with Plastics News delivered straight to your inbox, free of charge. Subscribe to Plastics News Plastics News covers the business of the global plastics industry. We report news, gather data and deliver timely information that provides our readers with a competitive advantage.Customer Service: