d  Support www.jsoftware.com
J database - J language
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All Jd users get free support through the J forums. For some users, the excellent and prompt forum support is probably all that is required. All fees are in USD.

Jd Prepaid Support

Jd Prepaid Support provides high-priority access to Jd developers/programmers for up to 100 hours for an annual fee of 10,000.

Jd Support

Jd Support provides the same support as Jd Prepaid Support but at mutually scheduled times for 300/hour.

Jd Application Development and Training

Jsoftware provides a range of consulting services for J/Jd application development and training.