ftputil
A high-level interface to the ftplib module with an interface like the modules os and os.path in the standard library. [Open Source, BSD-like]
http://www.sschwarzer.net/python/python_software.html

Kaleidoscope
Offers user interface customization, allowing switching between different interface designs provided by plug-in modules called "Schemes".
http://www.kaleidoscope.net/

Alpine IC Innovations
Custom analog, mixed-Signal, and RF IC design, layout and development services; IP modules for analog-front-ends AFE and transceiver modules for wireless, WLAN, ultrasound, imaging, sensor interface, and communications SoC and ASIC Chips.
http://alpine-ic.com

FLIBS - A collection of Fortran modules
Fortran modules by Arjen Markus to interface with C libraries, manipulate strings, write CSV files, manipulate file and directory names, implement abstract data types and structures, do automatic differentiation, and perform other tasks.
http://flibs.sourceforge.net/

libwww-perl
Modules to provide a simple and consistent programming interface to the WWW.
http://lwp.linpro.no/lwp/

SBS Technologies Inc.
Designs and manufactures MIL-STD-1553 and ARINC 429/575 interface modules and bus analysis systems.
http://www.sbs-avionics.com/

Athena Microsystem Solutions LLC
Hall-effect current sensing modules, SIMMStick modules and Wireless modules.
http://www.athenamicrosystems.com

P.C.E.
Manufactures interface modules for data, audio and video transmission over fibre optic cable.
http://www.pce-tech.com/

Ezi Web
Content and ecommerce modules. Word-style interface. Requires Microsoft IIS and MSAccess or MS SQL Server.
http://www.eziweb.net.au

Crystalfontz
Intelligent serial interface (RS-232, TTL, and SPI) character LCD modules with high level command set and advanced features.
http://www.crystalfontz.com/products