Espre Technologies, with a valuation of $43.6 million, is raising funds on StartEngine. The company has developed the NvisiLink family of chipsets and sensors that bridge the gap between wireless connections and data protection. The technology of Espre Technologies helps save innocent bystanders in an ambush attack by using the Agmas (Acoustic Gun Monitoring Alert Systems) protocol. The company has both public and private support with grants and investments from The US Department of Defense and other private organizations. John Terry founded Espre Technologies in July 2018. The current crowdfunding campaign has a minimum target of $10,000 and a maximum target of $4,703,476. The campaign proceeds will be used for growth and expansion.