Do you have an existing relationship with network gear providers such as Cisco, PaloAlto, Fortinet, etc?
[Edit] Or if your business is very small and just starting out perhaps you could set up an isolated zone with Linux or BSD VPN nodes and use something like Wireguard, Tinc, Strongswan, OpenVPN, whichever suits your needs. Then create firewall rules in your company to permit the VPN nodes to reach the required services.