History of Ritta

The story of Ritta began in a no-frill shophouse in uptown Bangkok with the FOUNDERS of five,Mr. Suwat Chaopricha, Mr. Uthorn Phusitkanchana, Mr. Kamol Opaskitti, Mr. Arak Sasipongpreecha, and Mr Kajonsit Singsansern , all of whom met each other in a Japanese construction firm while working on the first tunnel project in Thailand. They decided one day – long after the completion of such work – to start their own company and called it “Ritta”. The name means “power” in Sanskrit, and they chose the Magic Monkey, “Hanuman” as its corresponding logo symbolizing the connotation. The enterprise at the start could only afford a mezzanine with no window in that shophouse. The capital registration was one million baht, and they started off as a subcontractor to larger main contractors...Read more

In a little more than 20 years, Ritta has grown up from a small company to become a large company, from a small unknown company to become a reputable company, from personal reputation and credibility comes reputation and credibility of the company. We operate our construction businesses with integrity, responsibility, commitment to the principles of engineering and quality of work. We are recognized by our customers both locally and abroad.

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35 years later, Ritta now is the largest Thai Main Contractor in the private sector covering a full spectrum of constructions – i.e., residences, hotels, schools, hospitals, factories, data centers, shopping malls, retail super stores, high-rises, and many more – with annual turnover of approximately 15 billion baht and over 1,800 staffs. The backlog today, in the early of 2022, amasses handsomely to almost 30 billion baht!

In the early days of Ritta, construction sites are mostly petrochemical projects and foreign-owned factories in industrial estates where the Ritta crews had to practice strict safety protocols according to international standards. This has instilled workplace safety in Ritta’s culture as its highest priority from then to now. Day-by-day, through relentless pursuit of equitable business practices, Ritta has been blessed with valued and repeat customers and, as importantly, good staff members – most of whom are still with the company. The big break for Ritta came during the 90’s – the time that foreign-branded “modern trade” superstores were mushrooming all over Thailand. Ritta was able to secure most of the market shares of such rapid spurt – perhaps up to 90% of the expansion during the decade. The fight for fast establishments among the retail chains had forced Ritta to hone specific construction skillsets and characters – so much that it became widely known and accepted as the FASTEST builder in Thailand. Its current motto “making the impossible POSSIBLE” was given to Ritta by one of the large international clients in recognition of ahead-of-plan and below budget deliveries. Those days were the golden era in the company’s history

Shortly after the “Tom Yam Koong” financial crisis in 1997, when most of the competitors weakened or even died off, Ritta was among the very few that sprung back to its feet running. 15 years after the crisis, Ritta has grown its annual revenue by approximately 15-fold. Since then, Ritta has ventured into Bangkok’s inner city and CBD capturing high-end, high-rise hotel and condominium projects along the main streets and prominent BTS stations. At the same time, the company was still able to serve its valued repeat customers in other sectors such as hypermarkets, warehouses, factories, hospitals outside Bangkok. In the 2000’s Ritta is widely considered a “top tier” main contractor among the developers for its QUALITY and its “safety-tidy-and-clean” values. The company has also secured the first place in term of annual revenue in Thailand’s private sector for many years since. Today, Ritta’s 14-rai 10,000 sqm office houses over 400 supporting staff members, along with probably the largest BIM center among any contractors in Thailand, is LEED GOLD certified. It boasts an air-conditioned gymnasium, a full-size football field with jogging track. The building itself is cladded with green-tinted glass façades all around the perimeter offering the panoramic views of its lush surrounding to all the workers. Coming such a long way from the shophouse’s mezzanine with no window where the FOUNDERS and employees started from. Today, Ritta also owns logistic centers, a precast factory, a steel fabrication factory, an upcountry training center with living quarters, even a full-size sports complex.

Although recently, Mr. Suwat, Mr. Uthorn, Mr. Kamol, Mr. Arak, and Mr. Kajonsit all has essentially taken the back seats to let younger generations take the wheels, Ritta still is maintaining its quest for excellence as it was intended to since the start. The Ritta Holdings company with board of directors that incorporates independent directors and shareholders has been established. This to ensure Ritta’s management meet the desired KPIs and attain long-term sustainability goals for shareholders, stakeholders, employees, clients – AND continue to make the impossible POSSIBLE for the future to come.

The Beginning - Ritta was founded on October 26, 1987 by Mr. Suwat, Mr. Uthorn and Mr. Kamol. Operate by the office located at Chalerm Government Building, Soi Inthamara 29, Bangkok
The First Construction Project - Bang Pakong Power Plant, Electricity Generating Authority of Thailand (EGAT) September 1, 1989 - April 10, 1991
2nd Head Office - Family Condominium, Soi Indramara 25, Bangkok
KL12 Warehouse - Opened the KL12 Warehouse as a storage area for materials, tools, machines and maintenance workshops. in October 1996
Our first Makro - Makro Rayong 1 Apr - 31 Oct 1997
3rd Head Office - Soi Phahonyothin 32 (Sena Nikhom) January 1997
“RITTA – we made the impossible” - is the motto Mr.Simon Collins gave to Ritta after finishing of Makro Nakorn Sawan (Sep 1, 1997 - Jan 31, 1998). "
Our first Tesco Lotus - Tesco Lotus Supercenter Phuket 7 Feb. - 7 Aug. 1999
ISO 9000 Certified - ISO 9001:1994 issued by EIT-CBO to Ritta on October 25, 2000.
Fabrication Factory - Opened the steel frame assembly plant, Ban Bueng Subdistrict, Si Racha, Chonburi, in February 2002.
Our first Homepro - Homepro Sukkapiban 3 15 Oct 2002 - 31 Mar 2003
Suvarnabhumi Airport - Passenger Terminal, Concourse Building D & Chiller Plants 1 Apr 2003 - 31 Mar 2006
Millennium Residence - 1 Jun 2007 - 31 May 2009 4 residential buildings, which when viewed from above will be seen in the form of an airplane or a three-petaled orchid
Sathorn Square - 15 Jul 2007 - 15 Apr 2010 40-storey office building, 5 floors basement, located at Sathorn-Narathiwat intersection. LEED GOLD certified
The Sukhothai Residences - Nov 2007 - Mar 2011 A 42-storey residential construction project with 3 basement floors. It is the first project to adopt a Top-Down construction system.
Precast Concrete Factory - Opening a precast concrete parts factory, March 2009
New Fabrication Factory - Opened a new steel frame assembly plant with Japan technology on December 16, 2009
Ritta Heead Office (Present) - Ritta moved to the present head office on April 3, 2010. This building has been certified LEED GOLD.
The Master Nun Chandra Centennial Building - 1 Jun 2010 - 1 Jun 2013 The 17-storey building is shaped like a glass sphere. Constructed with a large Precast system called Spherical Precast Structure
Mega Bangna - Nov 2010 - Mar 2012 Large Shoping Mall, which Ritta is responsible for the construction of 5/6 of the total area.
ASEAN Outstanding Engineering Achievement Project Award - ASEAN level award presented by AFEO on December 4, 2010 in Hanoi, Vietnam.
KL 5 Maintenance center - KL 5 Maintenance Center opened on September 9, 2013 at Lam Luk Ka District, Pathum Thani Province to be used as a maintenance center and storage of equipment, tools and machinery.
RAIST & RASA - 3 Mar. 2014 - 30 Apr. 2015 Kamnoetwit School and Vidyasirimedhi Institute which is the name that has been given by Her Royal Highness Princess Maha Chakri Sirindhorn and received funding from PTT Group
Terminal 21 Korat - Jan 2015 - Dec 2016 A large shopping mall with more than 700 shops
ISO9001:2015 Certified - Ritta is one of the leading companies in Thailand to be certified. ISO9001:2015, 15 September 2016
ISO14001:2015 Certified - Ritta received the ISO14001 : 2015 certificate on March 15, 2017. It is the first company in the Thai construction business group. certified by the ISO14001 system
30th Anniversary Ritta - From 1987 to the present, for over 30 years Ritta Co., Ltd. has persisted in the construction business with 5 business strengths: quality, price, time, service and safety. Until today, Ritta Company Limited is one of the top construction companies in Thailand.
We are what you're looking for
We are always on the look out for new and exciting challenges.

Board of Director


  • Throughout Asia, we have created high quality construction based on sound engineering principles and our customer For over 20 years, we have been committed to the construction industry on various types of construction including high rise buildings, factories, shopping malls, hospitals etc. The award we receive shall be our source of pride that will further drive us on to the continuous improvement of our construction business.

Ritta is at the forefront of the construction industry in Thailand carrying out the works with professional care and one of the first to achieve Certification of quality management system (ISO9001) from Bureau Veritas (BV) under the accreditation of the National Accreditation Council of Thailand (NAC) and the United Kingdom Accreditation Service (UKAS).

We are what you're looking for
We are always on the look out for new and exciting challenges.

Financial Strength

Our operations are financially supported by various local and international financial institutions including Hong Kong Shanghai Banking Corporation, Standard and Chartered Bank, Siam Commercial Bank, Bangkok Bank, Krungthai Bank, Kasikorn Bank, United Overseas Bank, Land And Houses Bank and The Bank of Tokyo-Mitsubushi UFJ,LTD.

In order to comply with international accounting standards, Ernst & Young is appointed to provide accountancy audit services, Ritta also employs full time in-house professional audit department as we take pride in excellent corporate governance to ensure transparency in all business units.

Ritta has a paid-up capital of US$ 18.33 Million (THB 550 Million) and revenue in excess of US$ 478 Million (THB 14,500 Million)

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Ritta takes user privacy very seriously. We are committed to protecting your personal data in accordance with this Privacy Policy.

Privacy Policy

       Ritta Holdings Company Limited and its subsidiaries (“Group”) realizes and attaches importance to the protection of personal data. as well as to promote and support personnel to have awareness in collecting, using or disclosing personal information by complying with the Personal Data Protection Act B.E. 2562

       Therefore, the Board of Directors Therefore, this privacy protection policy has been established. as a framework for operation by the company group We may update or amend this Privacy Policy. To avoid actions that lead to the misuse of personal data which may cause damage to the operations of the Group of Companies and disseminating this policy to employees and business partners of the Group. be informed

  1. The Group of Companies has a policy and supports personnel at all levels to see the importance of and comply with the Personal Data Protection Act B.E. 2562

  2. Group personnel will not be involved in any action that is likely to lead to the misuse of personal information for the benefit of the organization, oneself or others

  3. The Group will collect, use or disclose personal information. as necessary according to the objectives of the Group

  4. The Group Company has developed a “Guidelines for Compliance with Personal Data Protection Policy” covering details. and the following operations

     4.1 Sources of Personal Data

     4.2 Purposes for collecting, using and disclosing personal data

     4.3 Processing of personal data

     4.4 Use of Specially Sensitive Personal Data

     4.5 Retention of personal data

     4.6 Period of retention of personal data

     4.7 Rights of the Personal Data Subject

     4.8 Use of Cookies

     4.9 Protection of personal information of other websites

     4.10 Penalty

     4.11 Changes to practices in order to comply with the Personal Data Protection Policy

     4.12 Contacts

  5. Personnel of the Company Group must not neglect or be negligent to report actions that are likely to lead to misuse of personal information.

       However, those who do anything which is a violation of the policy and guidelines for compliance with this Privacy Policy will be subject to disciplinary action in accordance with the regulations stipulated by the Group of Companies. If it can be proven that such an act is against the law.

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