About Us


Our Mission

To provide reliable, accurate and comprehensive geo-technical data to ensure that developers, engineers and architects can conceive and design engineering structures and facilities of optimal value.

We will ensure the highest professional standards in all our services by employing experienced and capable staff and deploying modern equipment and investigation techniques at all times.

Geotech Group

Geotech, the pioneer private sector company in Sri Lanka undertaking geo-technical investigations was founded in 1979 by Dr. A P Jayasinghe and a group of engineers and architects. Geotech has successfully conducted soil investigations for many major infrastructure projects in Sri Lanka as well as in the Maldives. A list of landmark projects is included in this document.

The company has over the years introduced new, more accurate testing methods, ensuring high accuracy in the geotechnical data provided to clients. We are proud to be the pioneers to introduce state of the art electronic technologies of testing concrete piles in Sri Lanka.

Geotech employs experienced and competent technical staff who are skilled in the handling of modern equipment. They are ably assisted by a skilled labour force.

Geotech (Pvt)Ltd is the principal company of the group with Geotech Testing Services (Pvt) Ltd. and Group Engineering Laboratories (Pvt) Ltd. as other members of the group. Geotech conducts on shore and off shore borehole investigations and field in-situ tests such as Mackintosh Probe tests, Plate Load Tests, Resistivity, Pull Out tests and Cone Penetration Tests CPTU and DCPT. Geotech Testing Services offers electronic pile testing services such as Pile Integrity Testing (PIT), Pile Dynamic Analyzer (PDA) tests, Sonic Logging tests and Bidirectional Tests. Group Engineering Laboratories is a laboratory services provider for geo-technical investigations and materials testing for construction industry and operates a fully equipped laboratory for these services. A brief description of the tests mentioned are given elsewhere in this document.

Director Board

Eng. L P Jayasinghe
BSc Eng (Hons) Sri Lanka,
FRMIT (Aust), C Eng,
FIE Sri Lanka MI (Mech) E ( London)
Managing Director

Mayanthie Jayasinghe

Geotechnical Consultants

Prof. B L Tennekoon
BSc, PhD, C Eng, FIE (SL)
Chief Technical Consultant

Prof S.A.S. Kulathilake
BSc, PhD, CEng, MIE (SL)
Technical Consultant

Our Team -Technical Officers

W.G.M. Abeysekara
S.A. Mech, Dip. Geology, MGA
University of Moratuwa
General Manager,
Geotech Group Geologist with
more than 30 years experience

D.K.P. Wijesekara
Dip Geology University of Moratuwa,
SLTS – CL – 1
Technical Manager,
Geologist with more than 35 years

P.A. Eranda Chanaka
Certificate Course of Geotechnical
Engineering, NCT (Civil)
Head of Geotech Testing
Services (Pvt) Ltd.

K.V.S.D Jayamali
BSc, M.Eng in Foundation Engineering
& Earth Retaining Systems, AMIE (SL)
Geotechnical Engineer

A.D.M.D. Amaratunge
Senior Technical Officer cum
Purchasing Manager,

H.P. Kasun Sandeepa (BSc)
Geotechnical Engineer