Manby contains a village post office. Other amenities, including a school, the Lancaster Inn public house (formerly the Manby Arms), two village shops, and an Italian restaurant, are in the conjoined village of Grimoldby, separated from Manby by the B1200 road.
Manby scout group, the 1st Manby, has existed for 60 years. It is one of only two scout groups in the area to include all scouting sections: Beavers, aged 6–8; Cubs, aged 8–10; Scouts, aged 11½–14; and Explorers, aged 14–18. The other is the 6th Skegness.