• IBM Lotus Symphony — based upon version 3.x of OpenOffice.org. Its components include Documents, Spreadsheets, and Presentations. For Microsoft Windows, Linux and Mac OS X.
• SoftMaker Office 2006 (for MS Windows) and SoftMaker Office 2008 (for Linux and MS Windows). Newer editions are commercial software.
• Kingsoft Office 1989 (for MS Windows) and SoftMaker Office 2011 (for Ms Windows and Google Android). 2012 publish office suite freeware.

• Calligra Suite — free and open-source office suite.
• KOffice
• LibreOffice — independent fork of OpenOffice.org with a number of enhancements
• OpenOffice.org — an open-source software project upon which Sun's StarOffice is based. The initial code was provided by Sun Microsystems, based on the Star Office package by German company, Star Division, which it had previously acquired. Sun has provided much of the labour for its development since. Its components include Writer, Impress, Math, Draw, Calc, and Base. Releases are available for Microsoft Windows, GNU/Linux, Mac OS X and Solaris. As Sun was purchased by Oracle, OpenOffice.org is now under Oracle's ownership.^[1]

• Kingsoft Office (Chinese version known as WPS Office) — a native Chinese-language office suite. English and Japanese versions are currently available also. For Microsoft Windows and some versions are available also for Linux.
• SoftMaker Office 2010 — a word processor, spreadsheet and presentation graphics program, provided by a German company. For Microsoft Windows, Linux, Windows Mobile, and Windows CE. Softmaker 2006 is a free download for Windows.
• StarOffice — an office suite from Sun Microsystems. Originally developed by the German firm Star Division, which Sun acquired. Early versions shared code with OpenOffice.org project, which Sun funded, but there has been separate development of the two packages. For Windows, Linux, Mac OS X, Solaris.

• IBM Lotus Symphony — Freeware word processing, spreadsheet and presentation suite.
• SoftMaker Office 2006 and 2008
• WPS Office — The Chinese version is available for free if used non-commercially
• Kingsoft Office — The English version 2012 is available as Freeware.
• SSuite Office ^[2]

• Calligra Suite — free and open-source, native for Windows since version 2.0
• KOffice
• LibreOffice – independent fork of OpenOffice.org with a number of enhancements
• OpenOffice.org

• Ability Office
• Breadbox Office — DOS software, but has been successfully tested with Win3.x, Win95/98/98SE/ME, WinNT4.0, Win2000 and the 32bit-versions of WinXP, WinVista and Win7.0.
• Celframe Office — supports Microsoft Office and other popular file formats, with a user interface styled on Microsoft Office 2003.
• EasyOffice
• EIOffice[1] (Evermore Integrated Office) — a Chinese / English / Japanese / French language integrated office suite. Available for Windows / Linux operating systems
• Framework — historical but also still supported for Windows by the present developer, Selection & Functions Inc.
• Gobe Productive — Originally written for BeOS by developers of the original ClarisWorks, GoBe Productive is a lightweight integrated Works-like office suite with a generous "Hassle-Free License."
• Ichitaro JUST Suite 2008 — a full Japanese-language suite from JustSystems, the most direct competitor to Microsoft Office in Japan. For Windows only.
• Kingsoft Office (Chinese version known as WPS Office) — a native Chinese-language office suite. English and Japanese versions are currently available also.
• IBM Lotus SmartSuite — For Windows 9x, NT, 2000 and XP only
• Microsoft Office
• Microsoft Works
• SoftMaker Office 2010
• StarOffice
• WordPerfect Office

• Breadbox Office — A word processor, spreadsheet, address book and drawing program. It is part of a broader software package called Breadbox Ensemble which also includes programs such as email, web-browser and html editor. Breadbox Ensemble runs under the GEOS (16-bit operating system) and effectively requires a version of DOS to be installed on the host system.
• Corel WordPerfect for DOS - A word processor, spreadsheet, and presentation software from Corel (containing WordPerfect 6.2, Quattro Pro 5.6, Presentations 2.1, and Shell 4.0c).

• IBM Lotus Symphony 1.2.1 — freeware word, spreadsheet and presentation suite.

• Calligra Suite (a fork of KOffice) — free and open-source
• KOffice — free and open-source, native support since version 2.0
• NeoOffice — NeoOffice is a Mac-specific open-source software development project dedicated to integrating OpenOffice.org with native features of Mac OS X as well as other enhancements that give the suite a more "Mac-like" look and feel. While source code is available for free, developers charge for the binary version of this application.
• OpenOffice.org runs on Mac natively in an Aqua version.
• LibreOffice runs on Mac natively in an Aqua version.

• iWork — Apple Inc.'s Mac-only office suite. Includes Pages, for word-processing, Numbers for spreadsheets, and Keynote, for presentations. iWork replaces the now-discontinued AppleWorks suite.
• MarinerPak — MarinerPak includes Mariner Write, a fully featured word processor, and Mariner Calc, a fully featured Spreadsheet application.
• Microsoft Office for Mac — Microsoft's office suite for Mac operating systems. The current version requires an Intel-based Mac. Prior editions ran on PowerPC systems and Intel based systems using Rosetta.^[3]
• Microsoft Works — 4.0 is the last version for Mac.
• StarOffice — Sun's supported version of OpenOffice.org added support for Intel-based Mac OS X systems with StarOffice 9.

• AUIS — an office suite developed by Carnegie Mellon University and named after Andrew Carnegie.
• Calligra Suite — free, open-source and cross-platform, integrated office suite for KDE.
• KOffice
• Jambo OpenOffice — a Swahili version of OpenOffice.org.
• MagyarOffice and EuroOffice — Hungarian and European multilingual commercial office suites based on OpenOffice.org
• Siag Office — a free office suite for Unix systems. Primarily written by programmer Ulric Erikkson, with contributions from other authors. Includes a word processor, a spreadsheet, and an animation program.

• IBM Lotus Symphony — freeware word, spreadsheet and presentation suite.
• SoftMaker Office 2008 — freeware word, spreadsheet and presentation suite. SoftMaker Office 2010 is a commercial version.

Office suites for Android, BlackBerry, iPhone, Symbian, Windows Mobile, Windows Phone, and others.

• Documents To Go
• MobiSystems OfficeSuite Pro
• Picsel Smart Office
• QuickOffice
• SoftMaker Office
• ThinkFree Office Mobile

• Google Docs — an AJAX-based online office suite from Google, Inc. The suite includes a word processor, a spreadsheet program, and a presentation editor. Available free and as an enterprise service.
• Windows Live Office - an online office suite from Microsoft which is based on Windows Live SkyDrive. It includes a word processor, a spreadsheet, a presentation application and a notetaking program. Allow users to create, edit, save and share documents.
• Zoho Office Suite — a free online office suite from AdventNet, Inc. Includes a word processor, spreadsheet, presentations, and collaboration groupware.

• Feng Office (formerly OpenGoo) — an open source, fully featured online office suite. The application can be downloaded and installed on a server.
• Tiki Wiki CMS Groupware is a full-featured web application, which includes a spreadsheet, webmail, etc.

• ContactOffice
• ShareOffice — a Web-based office suite from ShareMethods. This suite utilizes separate word processing, spreadsheet, and presentation applications from other vendors. It is distributed through Salesforce.com's AppExchange program.
• Simdesk — an online office suite from Simdesk Technologies, Inc. This suite offers partial compatibility with the Microsoft Office file formats (Word, Excel, and Powerpoint). With a monthly subscription to Simdesk Services (costing $3.50 – $20 per month), one is allowed to install the application anywhere.
• ThinkFree Office — an office suite written in Java, from ThinkFree, Inc. It includes a word processor (Write), a spreadsheet (Calc), and a presentation program (Show). For Microsoft Windows, Linux, and Mac OS X.

Not all office suites support Unicode; some have restricted Unicode support or, like Corel WordPerfect Office, use their own encoding standard.

• AppleWorks (previously known as "ClarisWorks") — an early Mac Office suite. It has morphed and branched into AppleWorks and GoBe Productive. When the original developers split up, ClarisWorks continued as AppleWorks after being bought by Apple, and GoBeProductive was redeveloped from the ground up using ideas from the original. Apple discontinued this suite after the release of iWork '08 in August 2007.^[4]
• IBM Works — was an office suite for the IBM OS/2 operating system. It included word processing, spreadsheet, database and PIM applications.
• Island Office was available in the 1990s on many Unix platforms. This included Island Write, Draw, Paint, Presents, Calc, Chart, Table and Equation. Island Draw was, at the time, an extremely powerful PostScript editor. The company that created this software was/is called Island Software.
• Lotus Symphony — Following the popularity of office suites made by competitors, the makers of the wildly popular Lotus 123, tried their hand at a suite for DOS. (Name resurrected by IBM in September 2007 as IBM Lotus Symphony)
• Lotus Jazz — Mac sister product to Lotus Symphony.
• LotusWorks — DOS and Windows suite containing a word processor, spreadsheet, database, graphing tools and telecommunications (modem terminal) module.
• Open Access — Integrated software by Software Products International (SPI).
• Q&A (software) — Featured a flat file database whose "intelligent assistant" could answer natural language questions, and integrated word processor.
• WindowWorks — Successor to LotusWorks above.
• Xoom Office — Historical but still available on eBay and elsewhere. Produced by the former makers of WordStar.