Most of the brands listed below offer wetsuits for a variety of conditions including winter and cold water. General Paddle Clothing Options
For information about wetsuit construction and care See Wetsuit Basics
When you see prices that seem low compared to other products there usually is a reason, most likely you are looking at less expensive neoprene with overlock or flatlock stitching which will not keep you nearly as protected from leakage and faster flush through. And the neoprene may very possibly be more water absorbant and less flexible than higher quality, more expensive options. If you're not a frequent wetsuit user and your water isn't real cold, then less expensive may be the way to start before you are sure you need something better. But you probably won't get the sense of how comfortable you can be until you try a well made, good fitting wetsuit.
Most wetsuits (neoprene, Yulex and other natural rubbers) are designed by their branding company but manufactured by one Taiwan-based company - Sheico (manufacturing facilities in Taiwan, Mainland China, Vietnam, Thailand and Cambodia). Sheico broke the expensive monopoly Japanese neoprene manufacturers long maintained and they have been the innovators behind a number of improvements in materials for wetsuits. Some brands like Rip Curl have their own factory but get their neoprene from Sheico. Yamamoto pioneered limestone based neoprene and until 2020 they were the only maker of calcium carbonate derived neoprene (See Sooruz “Oysterprene”). Sheico does make wetsuits that use limestone based neoprene. There are different grades of Yamamoto limestone neoprene and some companies report which they use but you will have to call many of these companies if you want find out which grade their suits use (or if their customer support knows).
The following brand list does not include a lot of smaller, locally owned and mostly only locally known, wetsuit makers. You can sometimes find such companies when you visit locales where wetsuit use is common. Locals wearing locally produced wetsuits will probably be the best reviewers you can get for such suits. And these local suits can be high quality and not overly expensive compared to similar wetsuits from larger companies with larger overhead from advertising, etc. Local companies that make their gear at their stores sometimes also offer convenient custom fitting options for walk-in customers.
Many of the bigger companies are truly multinational now.
This is only a sampling. You often can find additional multi-brand stores listed on your specific location wiki page here under the “Dealers” or “Resources” headings.
(where the wiki admins live)