The story
The company was founded in 1999 by Philip Urso and Jeffrey Thompson as a replacement to the legacy copper line T1, DS3, and OC-3 infrastructure. Initially serving two markets, Providence Rhode Island and Boston, Massachusetts, Towerstream's service area was expanded in 2003 to include New York City, and then expanded a year later to include Chicago and Los Angeles. Towerstream expanded into San Francisco in 2005. FierceVoIP's annual Fierce 15 list named Towerstream as one of the top 15 emerging companies implementing a T1 VoIP solution for 2005. In January 2007 Towerstream completed a reverse merger, raised $15 million in capital and commenced trading common stock on the OTC Bulletin Board under the symbol TWER. By May 2007, Towerstream stock was moved to NASDAQ Capital Markets and the company raised an additional $40 million in capital. Service coverage area was extended to include Seattle, Miami, and Dallas. In late 2008, Towerstream was honored by Xchange magazine with the Best of WiMAX World Award for its New York City network T1 and DS3 offerings and also honored by Telephony Online with two Telephony Innovation Awards "Most Innovative Broadband Wireless Service" and "Most Innovative Small Business Service".
In November 2009, Towerstream expanded service in Philadelphia and in April 2010 purchased Sparkplug's business assets in Chicago and Nashville, increasing Chicago's customer base to be Towerstream's third largest coverage area. In December 2010, the company expanded its presence in the Boston and Providence markets when it acquired business assets of Sparkplug Communications. In 2011, Towerstream entered the Las Vegas/Reno market with its acquisition of all of the One Velocity's customer contracts, network infrastructure, and related assets in those cities.
On July 13, 2011, Towerstream representatives visited the NASDAQ MarketSite in New York City's Times Square, where the CEO rang the closing bell.
In January 2013, HetNets Tower Corporation was formed as a wholly owned susididary of Towerstream Corporation. HetNets closed its operations on March 15, 2016.
In November 2015, Nasdaq and the SEC warned TWER of a risk of delisting for its closing price staying under $1.00 for 30 days.
In November 2016, TWER delisted from Nasdaq and moved to the OTCQB over-the-counter market.
From Wikipedia’s article on Towerstream, shared under CC BY-SA 4.0.4