Alexander Oskar Siffrin

KeyDrive SA provides domain registration services. The firm offers monetization and aftermarket services. The company was founded in 2011 and is headquartered in Luxembourg.

PTS GmbH provides public transportation service. It operates as a subsidiary company of ABELLIO GmbH. The company is located in Essen, Germany

Part of CentralNic Group Plc, Moniker Online Services LLC is a domain management company that offers a range of domain name services such as registration, transfer, privacy, security, parking, forwarding, and hosting. Moniker Online Services is based in Pompano Beach, FL and offers flexible hosting packages for a low price. Moniker Online Services offers a support hotline that is toll-free in the US and international. The company provides SSL certificates from various providers such as Sectigo, DigiCert, GeoTrust, Thawte, RapidSSL, and free SSL authentication. The company also provides an intuitive domain search and a variety of nontraditional tools to simplify the domain registration process. The company is committed to providing quality services to its customers.

Inter.services GmbH is a holding company based in Friedrichsthal, Germany. The CEOs are Eva C. Siffrin-Kokert, Alexander Oskar Siffrin, and Horst Oskar Siffrin. The German company was founded in 1872 by Alexander Oskar Siffrin.

Key-Systems GmbH provides domain registration, distribution, and management services for customers worldwide. It offers professional colocation, vCloud hosting, root/managed server, and hosting services. The firm serves corporate customers, trademark owners, companies and organizations, end customers, internet service providers, registrars, resellers, commercial and private entities, and domainers. Key-Systems was founded by Alexander Siffrin in 1998 and is headquartered in St. Ingbert, Germany.