there were several reputable companies known for producing high-quality wet/dry vacuums. However, keep in mind that new products and companies may have emerged since then, so it's a good idea to check more recent reviews and ratings.
As of 2023, some of the top manufacturers of wet/dry vacuums include:
Shop-Vac: One of the most well-known brands for wet/dry vacuums, with a wide range of models and sizes for various applications.
Craftsman: Craftsman offers a variety of reliable wet/dry vacuums, often praised for their durability and performance.
DEWALT: Known for its power tools, DEWALT also produces high-quality wet/dry vacuums designed for both professional and DIY use.
RIDGID: A brand owned by Emerson, RIDGID produces sturdy and powerful wet/dry vacuums with a focus on performance.
Milwaukee: Another brand famous for its power tools, Milwaukee also manufactures wet/dry vacuums that cater to the needs of tradespeople and professionals.
Kärcher: A well-regarded brand in cleaning equipment, Kärcher offers wet/dry vacuums that are efficient and built to last.
Armor All: Known for their automotive care products, Armor All also produces wet/dry vacuums suitable for car cleaning and general use.
Vacmaster: Vacmaster specializes in wet/dry vacuums and has a wide range of models suitable for different tasks and environments.
Remember that the "best" wet/dry vacuum can vary depending on your specific needs, preferences, and budget. It's always a good idea to read reviews, compare features, and consider the warranty and customer support offered by the manufacturer before making a purchase.