Testimonial. CPC-K JSC. 2022.

Testimonial. Bashneft-Dobycha. 2021.

Certificate from NCOC (Kazakhstan). Recognition of the quality of the services provided when performing work on metrological expertise and metrological certification, participating in the development of the project and commissioning during the reconstruction of the commercial gas flow metering system GE-5 at the Balashak plant. 2017.

Testimonial. "RN-Inform" (Rosneft). 2016.

Testimonial. Druzhba GomelTransOil. 2015.

Testimonial. Druzhba PolotskTransPetrol. 2015.

Testimonial. TuimazyTekhUglerod. 2015.

Testimonial "Cathodic Protection". Orenburgneft (Rosneft). 2015.

Testimonial. Tomskneftepererabotka. 2015.

Testimonial. Druzhba GomelTransOil. 2014.

Feedback on Workshop "Cathodic Protection". Asia Gas Pipeline LLP. 2013.

Testimonial. Caspian Pipeline Consortium - R. 2012.

Testimonial. Caspian Pipeline Consortium - K. 2010.

Recommendation. Caspian Pipeline Consortium - R. 2007.

Testimonial. Caspian Pipeline Consortium - R.

Testimonial. BashGiproNefteKhim. 2009.

Testimonial. Karachaganak Petroleum Operating B. V. (KPO). 2012.

Testimonial. Saratov Refinery (TNK-BP). 2009.

Testimonial. Ryazan Oil Refining Company (RNPK). 2009.

Testimonial. Ryazan Oil Refining Company (RNPK). 2011.

Testimonial. Saratov Refinery (TNK-BP). 2008.

Testimonial. Sibur Khimprom. 2008.

Testimonial. Sibur Neftekhim. 2009.