Who we are

denis bider - co-founder, director, technologist, and service lady ;)

denis completed the original SSH server developed in 2000 by Wei Dai. He is the company's director, customer representative, main developer for much of the time, and continues to oversee development. He is originally from Slovenia, and now resides with wife Jana and son Aaron in San José, Costa Rica.

Wei Dai - co-founder, original author

Wei is a silent partner in Bitvise, and is the original author of the predecessor to Bitvise SSH Server. He is widely known as the author of Crypto++, one of the first and most prominent public domain cryptographic libraries. Wei lives in Seattle, WA, and currently focuses most of his efforts on the problem of safeguarding the qualities of humanity through the advent of artificial intelligence.

Andrej Andolšek - head of development

Andrej and denis spent many hours sitting together in class in high school, and joined heads over C++ code during English lessons. Andrej is Bitvise's head of development, and is the main author of major portions of Bitvise SSH Client and Server; including file transfer and terminal subsystems, logging, and most of our SSH Client. Andrej lives with his family in Ljubljana, Slovenia.

Igor Jerovšek - server GUI and settings

Igor specializes in Bitvise's server user interface and settings. He is the author of the SSH Server Control Panel, and is the main developer of all things related to settings, including master-slave synchronization. Igor lives with his family near Maribor, Slovenia.

Robert Kuster - authentication and FlowSsh

Robert specializes in particularly delicate system-level code for Windows, and is the author of the current iteration of the SSH Server's authentication and login subsystem. Robert is also the main co-author of FlowSsh with Andrej. Robert resides in Ormož, Slovenia.

Igor Mladenović - client terminal

Igor has joined Bitvise recently, and is already the author of the new terminal console in our SSH Client. You can expect to see more of his work in future versions of our SSH Server. :-) Igor resides in Darmstadt, Germany.

László Májer

László is a newcomer to Bitvise, hailing from Szombathely, Hungary. We expect to see his code in future versions of Bitvise SSH Server. :-)

Our history

What is now Bitvise began in early 2000 with Wei Dai's idea to develop an SSH server for Windows, which at that time was not available. The company was formally founded in February 2001, and the first version of WinSSHD — now Bitvise SSH Server — was released in May. The initial version of Tunnelier (now Bitvise SSH Client) was released shortly thereafter - it supported manual port forwarding.

In May 2002, we released the first WinSSHD and Tunnelier in the 3-series, with Tunnelier now supporting the bvterm remote console and remote WinSSHD configuration. Another year later, in May 2003, we released new versions of our products with drastic improvements in speed, and in February 2004 we released the first versions in the 3.2x series, with xterm, VT-100 and graphical SFTP support available for the first time in Tunnelier. On 24 December 2004, Tunnelier 3.60 was released with dynamic tunneling, proxy and public key support, as well as a new license policy granting free individual use.

Years 2005 to 2007 featured WinSSHD and Tunnelier versions 4. In a process of incremental improvement, our products reached feature maturity and became known for their solidity and reliability, rooted in years of refinement.

2008 and 2009 saw the long-awaited release of WinSSHD version 5, featuring a complete rewrite of most of its functionality, including much better terminal and file transfer subsystems, fully FIPS 140-2 compliant encryption, and a new Control Panel. Most shortcomings of previous releases that were caused by architectural deficiencies were addressed in this version.

In 2012, we renamed our products to Bitvise SSH Server and Bitvise SSH Client, and released an important new version of our SSH Server, 5.50, with a complete authentication overhaul, support for true password-less login, and improved support for domain environments.

We released Bitvise SSH Server version 6 in 2013, with support for master/slave synchronization as the major new feature. Bitvise SSH Client version 6 was released in 2014, adding new command line clients and fully FIPS 140-2 compliant encryption.

The licensing of our SSH technology has also played a role throughout this time. Each year, new clients trusted our SSH implementation with their network transport security requirements. WinSSHD 4 even formed the core of a major competitive SSH server product.

Our company began with two and has grown over time to a size between four and six people. All of us are developers, living in different countries. denis bider, director and co-founder, lives in Costa Rica, but is originally from Slovenia, a small European Union country south of Austria and east of Italy. Another Bitvise co-founder lives in Seattle, Washington, USA. All of us developers work from individual home offices in Slovenia, Germany, and Costa Rica.

Our plans for the future remain simple: do our best to produce robust and reliable security software!