Comersus develops, maintains and commercializes ecommerce solutions for the USA and the rest of the world. These solutions allow companies to generate sustainable competitive advantages for their online projects. The Comersus software helps reducing time and costs when implementing an e-commerce/e-business strategy and, given its structure inspired in an open source/proprietary hybrid model, it offers the exact level of flexibility and professional assistance.


More than 350.000 users registered to download the application. The Comersus technical forum has over 70.000 messages. The Open Source public version of the shopping cart was launched more than ten years ago and is improved year to year. There are 90 payment gateways compatible with Comersus and six systems of real time shipping quoting. Its three websites (, and have great relevance and Page Rank on Internet searches within its field.


Comersus provides solutions to large companies such as British Telecom and Disney, to institutions such as UCLA and Gallaudet University, and to numerous small businesses and Start Ups.

In order to arrange a personal interview or if you wish to submit your proposal to this address, please contact us.

All inquiries treated in the strictest confidence

3 comments on “Investors
  1. Mike Corona says:

    We’ve been using Comersus 7.15 since 2010. We purchased Power pack. Order # 0022810071
    We have two questions.
    1. We recently upgraded our PayPal to PayPal Payments Advanced. After Generating the API Signature and copying the appropriate scripts from PayPal to BackofficePlus, (Not using sandbox) we tried to run a test sale.
    Apparently we need comersus_gatewayPayPalExpress1.asp and any other subsequent applicable pages. I can not seem to locate them in our folders, yet, we have Power pack.
    Can you help us aquire these pages? We need them to continue or we’re dead in the water.
    2. Also, we purchased a SSL certificate for several forms we created for lessons, etc…Ideally, we would like to use the certifate for any login to our site as well.
    Is there an easier way to set this up via some setting in backofficeplus, or do we just redirect links manually to https?
    Your quick response is much appreciated.

  2. admin says:

    1. You have to copy all PayPal scripts to your comersus/store folder
    2. You have to modify selected links to complete path starting with https There is no Backoffice setting to configure this.

    Remember that technical support is provided at

  3. Imran Majid says:

    We have been using Comersus for over 5 years and it is definately a very powerful ecommerce solution. We now turnover £300,000 using this cart and hope future updates will eventually convert the code to ASP.NET.

    We will continue to use Comersus for all future projects if ASP.NET becomes supported.

Leave a Reply

Your email address will not be published. Required fields are marked *