» 4specs
   Building products catalogue, with links to manufacturers.
   http://4specs.com/

» ARCAT
   Library of manufacturer's specifications and CAD details; directory of building products and manufacturers. Free downloads, sponsored by vendors.
   http://www.arcat.com

» American Institute Of Architects
   Resources include AIA contract documents, handbooks, guidelines, and MasterSpec.
   http://www.aia.org/

» Arcom Master Systems
   MASTERSPEC specifications and SPECWARE specification development and production tools.
   http://www.arcomnet.com/

» Builders Hardware Manufacturers Association-Standards and Certification for Architectural Hardware
   Publisher of standards for architectural (door and window) hardware. Product directory, sales of standards documents, and technical support.
   http://www.buildershardware.com/

» C-Specs
   Specifications consulting firm offers short-form construction, maintenance, repair specifications and bid forms.
   http://www.cspecs.com/

» Construction Criteria Base
   Documents used in building design and construction, including guide specifications, manuals, handbooks, regulations, and reference standards. Drawn from U.S. Federal agencies and private sources, a limited number of these documents are free to "guest
   https://www.ccb.org/html/home.html/

» Construction Product Marketing Group
   Marketing Consultant to construction product manufacturers. Provide AIA/CES Continuing Education Programs, Guide Specifications, and Sales Training.
   http://www.mcaspecs.com/

» Construction Specifications Canada
   Specifications documents and templates, directory of members.
   http://www.csc-dcc.ca/

» Digicon Information Inc
   Canadian "National Master Specification" and SpecSUITE documents and consulting services.
   http://www.digicon.ab.ca/

» First Source Exchange
   Building products catalogue with preliminary product selection information, comprehensive listing of manufacturers, technical product information, and MANU-SPEC proprietary specifications.
   http://www.firstsourceexchange.com/

» International Construction Information Society
   ICIS is an association of 16 organisations in 14 countries, each of whom produce national master specification systems and/or construction cost planning tools. The site includes links to member organisations.
   http://www.icis.org/

» NBS National Building Specification (UK)
   Publisher of specification publishing software and documents. Description of products and services, contact info.
   http://www.theNBS.co.uk/

» National Pavement Contractors Association
   Specifications for pavement related work, a glossary of pavement terms, and personal help with pavement specifications or questions.
   http://www.pavementpro.org/

» School Dude
   Information for school maintenance professionals, including postings of specifications and bid documents.
   http://www.schooldude.com/

» SpecType
   Training for SGML SPECSINTACT (Military specs)in the United States.
   http://www3.adnc.com/%7espectype/index.html

» Specification Links
   Links to manufacturers and associations.
   http://www.ryanlinks.com/

» Specifications Consultants in Independent Practice
   Directory of members, forum for specifiers, and information on the organization.
   http://www.scip.com/

» Speclink
   Products for cost management, cost engineering, value analysis, and construction specifications.
   http://www.bsdsoftlink.com/

» Spectext Master Guide Specifications
   System for preparing clear, concise specifications that conform to CSI formats.
   http://www.spectext.com/

» Spexwest
   Information on this specifications consulting firm. Offices in California, Washington, and Ukraine.
   http://www.spexwest.com/

» State of New York, Office of General Services
   Design and construction master specifications and contractual legal requirements.
   http://www.ogs.state.ny.us/dnc/masterspec/default.htm

» Sweets
   Building products catalogue includes product specifications, CAD Libraries, Manufacturer's Rep listings, and instant RFI service.
   http://www.sweets.com/

» The Construction Specifications Institute
   Technical information and products, continuing education, professional conferences, and product shows. CSI MasterFormat provides a common system of organizing and presenting construction documents.
   http://www.csinet.org/

» ToolBase Services
   Housing industry resources and technical information on building products, materials, new technologies, business management, and housing systems.
   http://www.toolbase.org/

» US Veterans Administration Facilities Management
   Guidelines, standards, and information on USVA construction programs.
   http://www.va.gov/facmgt/

» e-specs
   Information on this specifications consulting firm.
   http://www.e-specs.com/