Landmark’s rich history of innovation began more than 30 years ago when the company’s founders changed exploration and production with the first interactive 3D seismic interpretation workstation. Landmark has continued to envision, invest in, evolve and advance our technologies. Milestone after milestone, the industry has hailed Landmark for its scientific leadership.​

STEM Srl, a subsidiary of Danieli & C. Officine Meccaniche SpA, is an Italian company located in Cura Carpignano. The firm manufactures magnetic proximity sensors. It was founded in 1987 by Ernestina Castoldi and Piero Giuseppe Moro. Vincenzo Russi is the current CEO of the firm.

Huadian Electric Power Research Institute Co., Ltd. engages in the generation of thermal power, hydropower, and new energy power technology. Its business activities include distributed energy technology, technical supervision and research, inspection, testing, and consulting services. The company was founded in October 1956 and is headquartered in Hangzhou, China.

Foxboro, part of Schneider Electric SE, is a company headquartered in the United Kingdom that supplies automation solutions for the process industries.

China Construction First Building (Group) Corp. Ltd. is a company headquartered in Beijing, China and ultimately controlled by the Government of China, that provides general construction services.

China Construction Second Bureau Third Construction Engineering Co., Ltd., established on 1952-12-01, Business scope includes general cargo transportation;Construction General Contracting,Professional contractors;Engineering survey and design;Disassembly and assembly of lifting machinery and equipment,Maintenance and Rental;Template production and rental;Leasing of construction materials and metal products,Sales of commercial concrete;sale of building materials;Testing and inspection of building materials and building products;Property Management for Owned Properties(Including office rental).(Market entities independently choose business projects in accordance with the law,Carry out business activities;Items subject to approval by law,Carry out business activities in accordance with the approved content after approval by relevant departments;Do not engage in the business activities of projects prohibited and restricted by the industrial policies of the state and this city.)

Suzhou Rencheng Biotechnology Co., Ltd., established on 2006-06-13, Business scope includes research and development,Production,Sales:Magnetic biological fertilizer.Sales:Edible produce.Self-operated and agent import and export business of various commodities and technologies(Except for commodities and technologies that the state restricts enterprises to operate or prohibits import and export).(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Henan Derun Boiler Co., Ltd., established on 2004-11-16, Business scope includes boiler,Biomass molding equipment,Manufacture and sales of civil stoves;boiler,Boiler Auxiliary,electrical products,air conditioner,Heat exchange equipment,water treatment equipment,Processing and sales of biomass solid briquettes;boiler installation,transform,repair,Serve.Energy-saving technical service;technology development,technology transfer;Business Management Consulting;electronics,Agricultural Machinery Sales;Crop straw purchase;engaged in import and export business(above range,law,Projects that require approval before operation according to laws and regulations,Operate within the scope approved by a valid license or qualification certificate;Do not operate without approval).

Guizhou Miaoling Wuhai Ecological Organic Tea Garden Co., Ltd., established on 2011-10-24, Business scope includes sand and gravel mining,Sales(Carry out business activities according to the licensed items and time limit).Tea and other beverage crops,Flower planting and sales;Raw tea processing,Sales;import and export trade.

Pangang Group Panzhihua Iron and Steel Research Institute Co., Ltd., established on 2007-12-25, Business scope includes metallurgical process and related processes,Technology Development of Comprehensive Utilization of Metallurgical Resources,transfer,Consulting and Services;new material,new product development,Trial production and sales;Research on metallurgical machinery and equipment and metallurgical materials,Production,Sales;Computer information technology development and information service;Physical and chemical testing and related technology development,consult,Services and Training;Physical and chemical testing equipment repair;General Parts,Fabrication of Metal Structures;Processing and sales of rolled steel products;Conference and Exhibition Services.(Except for projects involving pre-licensing in the above business scope).(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Manufactures and markets farm machinery and equipment

Tongcheng Tianditai Agricultural Technology Co., Ltd., established on 2016-01-28, The scope of business includes agricultural machinery services;Agricultural product drying,processing,Sales;Aquaculture,Sales;crop,seedlings,flower planting,Sales;Agricultural Technology Information Consulting Service.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

China Construction Second Engineering Bureau Co., Ltd. is a Chinese company located in Beijing and ultimately controlled by the Government of China that provides engineering and construction services.

Anhui Wowangda Biotechnology Co., Ltd., established on 2009-05-15, Business scope includes beverage production and sales,Self-operated cargo import and export business.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Viridity Energy Solutions, Inc. is an American private company. The firm generates electricity power.

Jinan Huaqing Agricultural Machinery Technology Co., Ltd., established on 2010-06-25, The business scope includes agricultural machinery,planting machinery,vegetable machinery,woodworking machinery,Food Machinery,Container manufacturing and related equipment,Research and development of components,Design and manufacture,Production and processing,Installation and commissioning,Technical Services,to promote,Sales;Agricultural production and processing and agricultural technology training,baby sitting program;Steel structure processing;Machine Tool Parts Casting;pipe welding;Installation and Maintenance;Import and export business;Growing and selling agricultural products.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Sichua Jiuzhou Investment Holding Group Co. Ltd. is a Chinese private company. The firm functions as an investment holding company.

Dalian Sanke Biological Engineering Co., Ltd., established on 2006-02-10, The business scope includes the research and development of microbial compound probiotic technology,technical consulting,Technical Services,technology transfer;compound fertilizer,organic fertilizer,microbial fertilizer,Production and sales of feed additives;Import and export,Technology Import and Export.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments.)