Writting a Boot Sector
Code X software: Programming to a Higher Power, DJGPP and X11 Programming (binaries and source code), Linux and DOS (32-bit pmode), POV-Ray. Check out Code X for some cool games and X-Windows programs.
http://www.nondot.org/sabre/os/files/Booting/PolyOS.html

Sector Software
Retailer of a small range of Sinclair QL software.
http://www.sectorsoftware.demon.co.uk/ql.htm

Sector Trend Investing
Provides market and sector timing based on overbought and oversold conditions.
http://sectortrendinvesting.com

Precis Group, Inc.
Software for quality engineers, gauge r and r and calibration control software. Tools to facilitate the tough parts of ppap in the automotive sector.
http://www.precisgroup.com/

Munis Inc
Tyler Technologies — Software Solutions for the Public Sector — Tyler’s software and services enable local governments–cities, counties, schools and other government entities–to become more efficient, more accessible, and more responsive to the needs of citizens.
http://www.munis.com/

Redpoint Systems, Inc.
Software and integration company located in Little Rock, Arkansas, that specializes in software development primarily aimed at the industrial business sector.
http://www.redpointsystems.com/

Social Software
A group of volunteers based in the UK which hopes to find ways of bringing the benefits of Open Source Software to the voluntary / community sector.
http://socialsoftware.org/

India Infoline
Indiainfoline brings an extensive sector report on refinery giving information on refineries,APM,deregulations,refinery maps,crude prices and more..
http://www.indiainfoline.com/sect/refi/cont.html

Banco Bradesco
One of the largest private-sector banks, focused on the retail sector. 2927 branches and 22,339 ATM terminals.
http://www.bradesco.com.br/index_eng.html

Questica
Questica develops capital budgeting and operating budgeting software for municipalities and public sector. Questica also develops Enterprise Resource Planning (ERP) systems for the Custom Engineer to order (ETO) manufacturer.
http://www.questica.com