An AIMSonScene ICS software alternative may include Command Post software from ADASHI Systems for managing incidents.
According to ADASHI Systems the product provides an all-hazards incident response system that equips your team with the information, visualization, navigation and communication tools to make smart decisions. It appears that Adashi Software products compile all relevant incident information into a single, encompassing view providing the first responder with relevant information from start of the incident to termination.
Visit http://www.adashisystems.com for more information or contact sales at sales@adashisystems.com