Zecco.com is an American online investor portal. Zecco stands for "Zero Commission Cost". Zecco's stated philosophy was to eliminate commission fees. Zecco was among the first online investing websites that allowed for any trades without a commission. Currently, Zecco Trading allows for ten free trades a month. However, Zecco requires a minimum balance of $2,500 to be able to receive the 10 free trades. If that balance is not met, or the 10 trades are exceeded, the price is $4.50.

Reviews of Zecco have been very mixed. When serious customer service issues arise, it occasionally seems like Zecco is lacking in this area. Many traders have glorified the ten 0 commission cost, as well as its low commission cost for traders with less than $2500 ($4.5 per trade). Other investors with just a couple of trades a month find the interface to be lacking, and would rather pay commissions to get such features. Overall, with the recent improvements in customer service, Zecco's usage has gone up consistently over the last 12 months.

Another hindrance to Zecco's growth is its refusal to trade international markets and stocks. Even stocks on the OTCBB that are not US-based may not be bought. Zecco currently supports the AMEX, NYSE, NASDAQ, OTCBB, and The Pink Sheets.

As a reaction to the recent financial crisis, Zecco has decided to cancel commission on trades during the entire month of October 2008. Although this seems to have caused a few trouble with logging in, many user applauded this move.