SOCI People:

Maciej Sobczak (see homepage)
Project admin
Core development
Initial Oracle Call Interface support
Plug-in backend architecture
PostgreSQL backend
Documentation

Steve Hutton (see homepage)
Core development
Bulk (vector) operations
Dynamic result binding
Object-Relational mapping facilities
Common tests framework
Documentation

David Courtney (see homepage)
SQLite backend
MS SQL Server (via ODBC) backend

Paweł Aleksander Fedoryński (see homepage)
MySQL backend

Rafał Bobrowski
Firebird backend

Mateusz Łoskot (see homepage)
Package and build manager
Iterator support