This futuristic business name is based on the word "mad". The single "V" letter could stand for "virtual", "viral", "volume", etc.
The name "madv" has only four characters and only two syllables. Two syllable names make popular global brands. Examples of two popular syllable names include WeChat, Buffer and Google.
Madv.com is a dot-com domain. Dot com domains are synonymous with websites. When you own a dot-com, it is much easier to rank for your own name in search engines.