» Buy-VT
   Includes elevator and escalator procurement, and information on regulations, building work, and traffic assessment.
   http://www.buy-vt.com/

» D.T.M. Inc.
   Services include system design, traffic analysis, preparation of contracts, inspections, and modernization reviews. Contains profile, projects, services, client list, and staff.
   http://www.dtmelevatorinfo.com/

» Dunbar and Boardman
   Offers design, maintenance, management and expert witness services to the elevator and escalator industries. Contains services, disciplines, projects, and news.
   http://www.dunbarboardman.com/

» Edward A Donoghue Associates, Inc.
   Code and safety consultants. Contains services, publications, and Elevator Code Authority directory.
   http://www.eadai.com/

» Elevator Systems Professionals
   Offers elevator design, project management, contract, evaluation, commissioning, due diligence and accident investigation. Contains FAQs and articles.
   http://www.esp.ca/

» Guardian Elevator Services Pty Ltd
   Lists services, including project assessments, legal reporting, audits, performance diagnosis, maintenance contacting, and modernization consultancy.
   http://www.guardianelevator.com.au/

» Jappsen Stangier
   Consulting engineers specializing in elevators, escalators, and other conveying systems in office buildings. Contains a description of services, recent projects, and company information.
   http://www.elevator-consulting.com/

» Lerch, Bates & Associates Inc.
   Contains corporate profile, history, locations, jobs, and subsidiary companies, with details of services offered.
   http://www.lerchbates.com/

» National Elevator Consultants, Inc.
   Offers pre-engineering calculation, audit, design criteria, specification, project management, and feasibility services. Includes profile, services, staff, and clients.
   http://www.elevcons.com/

» Nationwide Elevator Consultants
   Offers elevator and escalator design, modernization, maintenance management, engineering evaluation, specification, and traffic studies. Contains services and contact information.
   http://www.nationwideelevatorconsultants.com/

» Ronald J. Farley and Associates
   Offers engineering evaluation and specification, traffic studies, and bid review. Contains company information and recent projects.
   http://www.ronfarley.com/

» Soberman Engineering
   Services include design, traffic analysis, contractual documentation, and modernization reviews. Contains profile, services, staff, and projects.
   http://www.sobermanengineering.com/

» Sterling Elevator Consultants, LLC.
   Describes services, including field surveys, system layouts, inspections, preparation of specifications, and assessments, profile, elevator history, and disability and safety technical papers.
   http://www.sterlingelevatorcons.com/