What Ritta does

Ritta Company Limited (บริษัท ฤทธา จำกัด) is a privately held Thai general construction and engineering firm headquartered in Bangkok, with a 20+ year operating history and a workforce of 5,001–10,000 employees including more than 700 engineers and architects. The company delivers integrated Engineering, Procurement, and Construction (EPC) services spanning design and engineering, Building Information Modeling (BIM), cost estimation and commercial management, safety and regulatory compliance (License to Operate), and supporting facilities, covering project types such as condominiums, department stores, hospitals, hotels, factories, warehouses, airports, office buildings, and renovations. Named enterprise and institutional clients include Central Group, King Power, Airports of Thailand, Bumrungrad Hospital, ESR Asia, and Rojana.

Ritta's technology backbone is BIM, used for digital representation of physical and functional project characteristics and integrated design-to-handover management. The company holds ISO 9001 quality management certification (Bureau Veritas, under NAC Thailand and UKAS accreditation) and a LEED Gold certificate from the U.S. Green Building Council for its Bangkok headquarters. Its collective project track record is stated to exceed 500 billion baht in completed work.

The business model is project-based enterprise construction services revenue, acquired through direct field sales to large corporates, government entities, and private developers in Thailand, with no public pricing or revenue disclosure. Five horizontal customer segments are served: commercial real estate developers, healthcare providers, industrial/manufacturing, hospitality, and residential developers — with the first three flagged as primary. The company distributes services exclusively through direct enterprise engagement in a single-country (Thailand) market, supported by university and innovation partnerships as ecosystem- and brand-building channels.

Name

Ritta

Legal name

Ritta Company Limited (บริษัท ฤทธา จำกัด)

Website

https://ritta.co.th

Company type

Private

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

Ritta is a privately held Thai construction and engineering firm delivering integrated EPC services — design, BIM, project management, and safety — to enterprise clients across healthcare, retail, industrial, and residential segments in Thailand, with a 700+ strong technical workforce and a project track record exceeding 500 billion baht.

Ownership category

akta.pro rank

Headquarters

HQ city

Klong Sam

HQ country

Thailand

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure, Supply Chain

Revenue model

1. Construction Services: Project-based revenue from design and construction services for various building types including condominiums, hospitals, hotels, factories, warehouses, department stores, and office buildings. Services range from new construction to renovation projects.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Ritta is a Thai engineering and construction firm delivering full-service design, engineering, BIM, and project management for large-scale building projects. The company operates an integrated EPC model covering design and engineering, building information modeling, pricing and commercial management, safety/license-to-operate compliance, and supporting facilities, executed by a team of more than 700 engineers and architects. Projects span condominiums, hospitals, hotels, factories, warehouses, department stores, office buildings, airports, and renovation works.

Product overview

Ritta is a construction and engineering services company offering an integrated suite of services from design through handover. The core offering consists of Design & Engineering (professional engineering and architectural design), BIM (Building Information Modeling for digital project representation), Pricing & Commercial (cost estimation and commercial management), License to Operate/Safety (compliance and regulatory licensing), and Supporting Facilities. These solutions are delivered through a professional team of over 700 engineers and architects, serving diverse project categories including condominiums, department stores, factories, hospitals, hotels, and office buildings.

Differentiator

Problem solved

Functional benefit

Products and services

• Design & Engineering Professional engineering and architectural design services covering structural engineering, architectural design, and project planning for enterprise construction clients.
• BIM (Building Information Modeling) Digital representation of physical and functional characteristics of construction projects, enabling collaborative design and construction management for enterprise clients.
• Pricing & Commercial Cost estimation, commercial management, and neighbor management services for construction projects.
• License to Operate (Safety) Safety compliance and regulatory licensing services to ensure construction projects meet operational standards.
• Supporting Facilities Additional support services for construction projects including facilities management and project handover support.

Quantifiable outcome

• 500+ billion baht in completed projects
• +2 more outcomes

Named customers6 records

Segments5 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Two partnerships are on record, tiered core.

• Innovation PartnerscoreStrategic or Co-development Partner · 1 December 2025Memorandum of Understanding on Innovation for Design and Construction signed to promote innovation in engineering and construction practices.
• Srinakharinwirot University Faculty of EngineeringcoreStrategic or Co-development PartnerMOU signing ceremony for collaboration on innovation in design and construction, including research and development initiatives with the Faculty of Engineering at Srinakharinwirot University.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• WSP Global Inc. Global professional services firm providing engineering, design, and project management across buildings and infrastructure. Comparable in integrated design and engineering-led project delivery model to Ritta's EPC stack.
• Skanska AB: Global construction and development company with a strong building construction segment. Comparable in commercial building construction, sustainability focus, and integrated project delivery approach.
• AECOM: Global engineering and construction services firm with design, program management, and EPC capabilities. Comparable in integrated design-build and BIM-led delivery, but operates at much larger scale and across geographies.
• Jacobs Solutions Inc. Global engineering, technical, scientific, and construction services firm. Overlaps with Ritta on design, engineering, and program/project management for complex building and infrastructure projects.

Direct peers

• Ch. Karnchang Public Company Limited: One of Thailand's largest contractors, delivering infrastructure, buildings, and concessions. Direct competitor to Ritta in the Thai large-scale construction market, with similar enterprise and government clients.
• Italian-Thai Development Public Company Limited: Thailand's largest contractor with diversified operations across buildings, infrastructure, and industrial projects. Closely comparable to Ritta in scope, project type, and end-market exposure.
• Christiani & Nielsen (Thai) Public Company Limited: Thai general contractor with heritage in commercial, industrial, and infrastructure construction. Direct competitor for many of the same hospital, retail, and commercial project mandates that Ritta targets.
• Nawarat Patanakarn Public Company Limited: Long-standing Thai construction firm delivering commercial buildings, residential, and civil works. Similar customer base and project types to Ritta, operating in the same domestic market.
• Syntec Construction Public Company Limited: Thai EPC and engineering contractor with a strong portfolio in commercial, residential, and industrial builds. Directly comparable in service mix, BIM use, and client type to Ritta.

Regional players

• Hyundai Engineering & Construction Co., Ltd. Major Asian EPC contractor active across Southeast Asia in commercial, industrial, and infrastructure builds. Comparable in EPC delivery, scale, and project complexity, though based in Korea and competing primarily outside Thailand.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/Ritta_Group
• Facebookfacebook.com/ritta.co.th

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Ritta