Past research on drug-related vendors on Tor marketplaces indicate that sellers are motivated by the greater anonymity afforded by the Tor Network. Limited research has even posited that some drug-related vendors on cryptomarkets sell to other dealers, adding another dimension to existing literature that highlights the retail nature (dealer-to-customer transactions) of these Tor-based drug markets. Yet these past studies have been largely qualitative in nature. This study conducted a quantitative analysis of vendor accounts on Evolution and Agora to determine characteristics predictive of vendors advertising controlled substances, and to determine whether any statistically significant differences among drug vendor characteristics existed between the two sites.