1st Shield Security Service, No matter what you’re looking for, you’ve come to the right place for security service in London, we take excellence in security seriously. We work with a team of elite agents on guard at all times. <br> <br>Protecting people and assets is our top priority. As a leading security company in the UK, we provide comprehensive security solutions tailored to meet our clients\ unique needs. Our team of experienced professionals offers high-quality security services, including manned guarding, event security, and CCTV surveillance, 24/7. Trust us to keep you safe.