About Flexibilis

Flexibilis offers solutions for mission critical communication. We develop integrated circuits as well as license FPGA IP cores for device manufacturers. Our main values are to develop products that are precise, reliable and secure.

We also provide FPGA and software design services for our domestic and international customers. The development projects are typically linked to our own FPGA IP products. We have a lot of experience in low level driver software and the Linux operating system.

Flexibilis was founded in 1998 and the headquarters are located in Tampere, Finland.

In October 2016, Austrian company TTTech, a global leader in the field of robust networking and safety controls, acquired Flexibilis.



In communication technology, Flexibilis has concentrated on wired Ethernet. In 2002, Flexibilis had already developed its first FPGA IP product. The product was named FFEC (Flexibilis Fast Ethernet Controller), and was an Ethernet controller IP block, programmable to an FPGA chip. In 2006, development of FPGA technology made it possible to upgrade the controller to gigabit speed. The name was changed to AFEC (Advanced Flexibilis Ethernet Controller), as “Fast Ethernet” implied support for 100 Mbps speed only. The IEEE 1588 PTP (Precision Time Protocol) was becoming a more and more widely used standard for time synchronization, and support for it was added to AFEC in 2007.

The development of another important Flexibilis IP product, FES (Flexibilis Ethernet Switch) started in 2007. FES is a standards compliant Ethernet switch. It was designed from the start to be gigabit, and to support the IEEE 1588 Precision Time Protocol. In July 2011 Flexibilis released a version of FES that supported the HSR (High-availability Seamless Redundancy) protocol. At first the product was called FES-HSR, to emphasize its origin. The product garnered wide interest, as it was the first HSR implementation to support gigabit speed. Support for PRP (Parallel Redundancy Protocol) was added and the name was changed to FRS (Flexibilis Redundant Switch). FRS is currently the most important product of Flexibilis.

Flexibilis has also designed complete devices. At the beginning of 2007 Flexibilis started to develop its first complete communication product. It was a time synchronization device targeted for use in harsh environments. It had a waterproof housing, and the electronics inside the housing were passively cooled. It was built using FPGA technology and both AFEC and FES IP blocks were employed. The device was able to achieve nanosecond class accuracy in clock transfer over Ethernet using IEEE 1588 PTP. The first sales took place in 2009.


Contact Us

Tullikatu 6
33100 Tampere, FINLAND

Tel: +358 44 342 5507