ROKO Construction Company
A privately owned Ugandan engineering and construction company with operations and affiliates across several East and Central African markets.
Last updated August 26, 2026
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Overview
ROKO Construction Company, also known as ROKO Construction Limited or simply ROKO, is a privately owned Ugandan engineering and construction business headquartered in Kampala. It was established in 1969 by two European engineers, Max Rohrer of Germany and Rainer Gottlieb Koehler of Switzerland. The company developed into one of Uganda’s major construction contractors and has worked on institutional, commercial, religious and public-sector developments. ROKO’s business is centered on construction and engineering contracting rather than consumer products. Its project portfolio includes large buildings, government facilities, financial-sector headquarters and religious structures. Among the projects associated with the company are the Basilica of the Uganda Martyrs at Namugongo, Mapeera House in Kampala, DFCU House and the Justice, Law and Order Sector office development known as JLOS House. The company also undertook substantial renovation work at the Namugongo basilica after its original construction period. The company’s operating footprint extends beyond Uganda. Reference material identifies activity or corporate affiliates in Kenya, Rwanda, Tanzania, the Democratic Republic of the Congo and South Sudan. Affiliates and subsidiaries listed in the company’s reference coverage include ROKO Rwanda Limited, ROKO South Sudan Limited, ROKO Congo Limited and ROKO Technical Services Limited. This regional presence positions ROKO as an East and Central African contractor rather than a company focused exclusively on the Ugandan market. ROKO is controlled by the families of its two founders and is not presented as a publicly listed company. Governance information available for 2021 identified Jean Mann Koehler as chairperson, Mark Koehler as managing director, Peter Mugarura as a director and Brigitte Koehler as a director. The same reference described a six-member board, although only four members were named in the available material. In April 2021, the company was described as one of Uganda’s five leading construction companies by Construction Review Online. At that time, it reportedly employed more than 850 permanent staff and more than 1,180 temporary workers. Its workforce included more than 100 key staff, approximately half of whom were engineers. These figures indicate a substantial project-delivery organization, although they should be treated as historical rather than current workforce data. ROKO has also faced the financial pressures common to major contractors working on large public projects. In November 2020, Ugandan government arrears for completed or ongoing work were reported at nearly UGX47 billion, contributing to a temporary cash-flow squeeze. In July 2022, reports said the Ugandan government was negotiating a proposed investment involving 150,000 preferential shares in exchange for approximately UGX202.13 billion. The proposal was discussed against the background of a substantial prospective pipeline connected to Uganda’s oil sector. The available reference material does not establish whether that proposed transaction was completed. The brand’s identity is therefore built around long operating history, founder-family ownership, engineering capability and participation in landmark African building projects. Because the available material is mainly an overview rather than a complete corporate record, current ownership details, present-day leadership, exact revenue, current workforce and the status of the reported government investment require further verification.
History
ROKO Construction Company was founded in Uganda in 1969 by Max Rohrer, a German engineer, and Rainer Gottlieb Koehler, a Swiss engineer. The enterprise was built as an engineering and construction contractor and subsequently became a significant participant in Uganda’s building industry. Both founders later died, Rohrer in 2005 and Koehler in 2013, while ownership remained with their families. The company’s project history includes work on prominent Ugandan buildings and public facilities. ROKO served as lead contractor for the Basilica of the Uganda Martyrs at Namugongo, a major religious landmark. The project began before the company’s formal 1969 establishment and was completed in 1975; ROKO later returned to perform major renovation work in 2015. The company also constructed Mapeera House, the Kampala headquarters of Centenary Bank, between 2007 and 2012. Another major commercial assignment was DFCU House at 46 Kyaddondo Road on Nakasero Hill, built from 2011 to 2013. ROKO was also associated with the JLOS House Project, a three-part government office development in Kampala intended to accommodate Uganda’s Justice, Law and Order Sector. Over time, ROKO expanded its activities outside Uganda. Reference material identifies operations or affiliates in Kenya, Rwanda, Tanzania, the Democratic Republic of the Congo and South Sudan. Named affiliates and subsidiaries include ROKO Rwanda Limited, ROKO South Sudan Limited, ROKO Congo Limited and ROKO Technical Services Limited. The regional structure supports the company’s role as a contractor capable of pursuing projects across multiple African jurisdictions, although detailed information about the size and performance of each affiliate is not available in the supplied sources. By April 2021, Construction Review Online characterized ROKO as one of Uganda’s five leading construction companies. The company was reported to employ more than 850 full-time workers and more than 1,180 temporary workers, with more than 100 key employees and approximately half of those key employees being engineers. These figures describe the organization during that period and do not confirm its current staffing level. The company’s private ownership and large-project exposure have also shaped its financial story. In November 2020, the Ugandan government was reported to owe ROKO nearly UGX47 billion for completed or ongoing work. The arrears were linked to a temporary liquidity problem. In July 2022, reports stated that the government was negotiating a possible purchase of 150,000 preferential shares for roughly UGX202.13 billion. The proposal was discussed when ROKO was said to have a prospective Ugandan oil-sector project pipeline exceeding UGX1.204 trillion. The available material does not confirm that the proposed share transaction closed. Governance information published for April 2021 named Jean Mann Koehler as chairperson and Mark Koehler as managing director, with Peter Mugarura and Brigitte Koehler serving as directors. The source described a six-member board but did not identify all six members. Current leadership, ownership changes, financial performance and the later status of the government investment require additional authoritative sources.
- 2021
ROKO is listed among Uganda’s leading contractors
[1]Construction Review Online describes ROKO as one of Uganda’s five leading construction companies and reports its historical workforce scale.
- 2015
Namugongo basilica renovations
[1]ROKO returns to the Basilica of the Uganda Martyrs to carry out major renovation work.
- 2013
DFCU House project concludes
[1]ROKO completes DFCU House on Kyaddondo Road in Kampala after construction from 2011.
- 2012
Mapeera House is completed
[1]The Mapeera House project reaches completion after a construction period beginning in 2007.
- 2007
Mapeera House construction begins
[1]Construction starts on Mapeera House, the Kampala headquarters of Centenary Bank.
- 1975
Namugongo basilica work is completed
[1]ROKO, acting as lead contractor, completes the construction of the Basilica of the Uganda Martyrs at Namugongo.
- 1969
ROKO is established in Uganda
[1]Max Rohrer and Rainer Gottlieb Koehler establish the engineering and construction company that becomes ROKO Construction.
Products and positioning
A long-established, privately owned East and Central African engineering and construction contractor serving institutional, commercial, religious and public-sector clients.
Construction contracting
Building construction
ROKO’s core activity is the delivery of major building projects as a lead or principal contractor. Its documented work spans commercial headquarters, public offices and religious buildings, indicating capabilities in large-scale project execution rather than a standardized consumer product range.
Engineering services
Engineering and technical services
The company operates as an engineering and construction business and maintains an affiliate named ROKO Technical Services Limited. The available material does not provide a detailed breakdown of specific engineering disciplines, but engineering personnel represent a substantial share of its key staff.
Building renovation · 2015
Renovation and refurbishment
ROKO also undertakes renovation work on established buildings. A documented example is the major renovation work carried out at the Basilica of the Uganda Martyrs in 2015, following the company’s earlier role in constructing the structure.
Brand decisions
2022
Negotiation over a proposed government shareholdingOtherBackground
Reports in July 2022 described negotiations between the Ugandan government and ROKO’s owners during a period when the contractor was associated with a large prospective oil-sector project pipeline.
Action taken
The reported proposal involved the government acquiring 150,000 preferential shares for approximately UGX202.13 billion.
Aftermath
The supplied reference does not establish whether the proposed investment was completed or whether the government became a shareholder.
Proposed consideration for 150,000 preferential shares. UGX202.13 billion proposed consideration (Reported July 2022)
Sources1 sources
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