W. L. Gore & Associates is a privately held US company with 10,000 employees and a $3.2 Billion annual turnover, headquartered in Delaware. Founded in 1952, it is probably best known for GORE-TEX(R), the weatherproof fabric used in outdoor clothing, the company develops and manufactures products using PTFE for wide ranging applications from medical implants, clothing, to electronic cables.
Gore's involvement with small cells relates to their venting solutions, which protect telecom equipment operating outdoors. Rapid changes in temperature and pressure can cause pressure imbalance within sealed equipment casings. This leads to moisture being sucked inside, which in turn causes reduced lifetime and higher maintenance costs.
Gore's venting products effectively protect against the negative effects of pressure differentials caused by temperature changes. With their integrated GORE™ Membrane, these vents allow an enclosure to equalize pressure quickly when subjected to changes in temperature and pressure.
Venting applies to all outdoor telecom equipment, including not just the small cell/Metrocell itself but also separate wireless backhaul units.
More details can be found on their website