Dnsmasq is a lightweight package of network services for small networks, suited to resource-constrained routers and firewalls. It acts as a local DNS forwarder and cache that passes queries to upstream servers, caches common record types, can validate DNSSEC replies and can optionally answer authoritatively for a zone. It also includes a DHCP server (DHCPv4 and DHCPv6, plus BOOTP and PXE, with static and dynamic leases), a read-only TFTP server for network boot and IPv6 router advertisements. It runs on Linux, Android, BSD variants and macOS and is self-managed.
Dnsmasq is free software under GPL version 2 or 3. It is mainly written and maintained by Simon Kelley, who according to the project page works on it as his main activity without an employer funding him. No company or parent company stands behind the project, and there is no central service: all data stays on your own equipment. For a European organisation, dnsmasq is therefore a self-hostable building block for local name resolution and DHCP, with no dependence on an external provider.