According to Salahaddin University - Hawler, industry contributes around 22% to Kurdistan's GDP, which makes industry the top contributor to the GDP. Most of industry in Kurdistan revolves around oil and gas sector, petrochemicals and chemicals. Furthermore, the region has minor textile industry, leather industry, construction materials industry, food processing industry, fertilizer industry, and metal fabrication/processing industry. The major industrial groups are also part of diversified conglomerates that operate in Kurdistan. Find more below on oil and gas companies, contracting companies and diversified conglomerates in Kurdistan.

According to Salahaddin University - Hawler, industry contributes around 22% to Kurdistan's GDP, which makes industry the top contributor to the GDP. Most of industry in Kurdistan revolves around oil and gas sector, petrochemicals and chemicals. Furthermore, the region has minor textile industry, leather industry, construction materials industry, food processing industry, fertilizer industry, and metal fabrication/processing industry. The major industrial groups are also part of diversified conglomerates that operate in Kurdistan. Find more below on oil and gas companies, contracting companies and diversified conglomerates in Kurdistan. 

Mass Group
Mass Group Holding Ltd (MGH) produces electrical energy, cement, steel, and fertilizers, along with other basic industrial products and services. Their focus is on: Electricity generation: the current production capacity of their three build, operate, and own (BOO) power stations is 2,500 MW. The group wants to reach 3,500 MW through converting to combined cycle by the year 2014. Cement: the current annual production capacity is around 7.5 million tons, reaching 11.5 million tons by 2014. Steel and Iron: the current annual production capacity is 1.25 million tons and it is expected to be doubled soon. Urea: MGH has started constructing a urea project with an annual capacity of 1.38 million tons, one of the biggest of its kind in the industry.

Qaiwan Group
A diversified conglomerate based in Sulaymaniyah with activities in construction (Qaiwan Towers, Qaiwan City, Sulaymaniyah Heights), energy (Baziyan Refinery, Petrol Stations, Oil Trading), retail and hospitality (Rotana Hotel Sulaymaniyah, Qaiwan Hotel).

KAR Group
KAR Group is a full spectrum oil & gas sector services company working throughout Iraq providing expertise in project design, engineering and construction, plant design and installation, pipeline design, health, safety and security services.

DarinGroup
Darin Group is an Iraqi holding group founded in 1998 and launched to support the three main industries, namely construction, internal project management and general trading. The group has been involved in major construction trading activities throughout Iraq for many years. Also, Darin Group has very diversified specialized business activities and it is serving the whole of Iraq. In a region where industrial development is crucial to economic prosperity, Darin Group has earned the confidence and respect of governmental departments and multinational organizations by achieving exceptional high standards of service. The group's factories include Erbil Steel Factory, Ice King Factory, Flour Factories, Darin Asphalt, Darin M2 Factory, Darin Block Factory, Darin Concrete, Batching, or Hollowcore Slabs Production Factory.

UB Holding
The holding's turnover was $1.2 billion in 2009 and it increased in 2010 to approximately $1.5 billion. The UB Holding is involved in the upstream, midstream and downstream sectors like oil sector as well as in manufacture. For example, the family-owned conglomerate UB Holding now operates one of the largest bottling factories in the Middle East Life Water, located in the northern Iraqi town of Zakho. UB Holding currently represents one of the leading private sector companies in Iraq.