St. Paul Tower
St. Paul Tower specializes in tower erection, maintenance, antenna installation, build to suit, and turn key tower projects. Metro Aerial provides tower leasing services.
http://www.stpaultower.com/

Tower Services, Inc.
Tower Services, Inc. - Providing Tower Services Including Cellular tower construction, Cellular tower maintenance, Cellular tower site installation, Broadcast tower maintenance, Broadcast tower installation, Inspections, Cellular Tower Construction, Installation, Microwave Installation, Maintenance, PCS & Cellular, Line Testing and Broadcast
http://www.towerservicesinc.com/

Fort Worth Tower Inc.
Manufacturer of monopole tower structures, guyed towers, self supporting towers, cell on wheels, disguised sites, and tower accessories.
http://www.fwtinc.com/

B & B Tower, Inc.
Oklahoma, US based tower maintenance company specializing in co-locations, microwave system installations, tower inspections and maintenance.
http://www.bbtowers.com/

TowerTech
TowerTech, an Iowa based company, has been providing time critical services to the radio tower and cellular industry since the year 2000 with an ongoing commitment to safety and quality. Located in Davenport, Iowa; TowerTech has far reaching results across the United States in tower lighting, cellular and Wi-Fi co-locations. We provide the most detailed tower inspections and reports available in the industry.
http://www.TowerTech.us

Harrington Tower Services
Harrington Tower Services does tower maintenance, inspection, installation, and repair for broadcast and cellular antenna sites.
http://www.harringtontower.com/

Tower-pro mailing list
Tower-pro: For folks making a living on tall steel
http://finance.groups.yahoo.com/group/Tower-pro/

Sustaining: tower blocks
sustainable refurbishment tower blocks, built environment, infrastructure, sustainability.
http://www.sustainingtowers.org

Yahoo Groups: Tower Climbers Group
Yahoo! Groups offers free mailing lists, photo & file sharing, group calendars and more. Discuss hot topics, share interests, join online communities.
http://finance.groups.yahoo.com/group/Tower_Climbers/

Allstate Tower, Inc.
Allstate Tower, Inc. has a commitment to quality and dedication to our customers that has secured us as one of the most reputable manufactureres in our industry. We have maintained a commitment to excellence in the production of high quality commercial communication towers. Company product innovations for industrial and commercial applications show that National Tower Company sets the bar in the recognition of consumer needs and our dedication to fulfill them. Serving the entire United States from our Midwest location in Evansville, IN, we take pride in our experienced and dedicated empolyees who endeavor to get the job done right from the beginning.,
http://www.allstatetower.com/