Tessella is the Analytics World Class Centre of the Altran Group, a global leader in innovation and high-tech engineering consulting. We are leaders in the field of data science and analytics, and we have developed a reputation for helping clients solve their most complex technical challenges by unlocking the power of their data, enabling them to make better-informed business decisions.

Our work is varied, exciting and at the cutting edge of high-tech R&D. We solve computational problems for chemists at the early stages of drug discovery and development, ultimately getting drugs to market faster. We help consumer goods companies model and simulate new product ideas and perform data analysis to improve their processes. We also support oil and gas engineers with the computational challenges of exploration and production, from reservoir modelling to writing control systems. In space and defence, we have written algorithms and solved complex mathematical problems to control satellites and radar systems.

Company at a glance
  • Founded in 1980, Tessella employs c.265 staff.
  • We have an international presence, with offices in the UK, US and Europe
  • Awarded the top “extraordinary” 3 stars by Best Companies and listed in The Sunday Times Top 100 Small Companies To Work For 2017.
  • Investors In People accredited since 1995 and IIP Gold accreditation awarded in 2017, placing us in the top 2% of organisations assessed.
Company Values
  • We value a positive, can-do attitude and the ability to take the initiative
  • We ask others for support; we give support freely and willingly
  • We value versatility in our staff and the development of transferable skills
  • We value diversity in our staff
  • We champion each other and give credit where it is due