What Niobium Labs does

Longhai Construction Group (龙海建设集团, also known as 时博/Shibo) is a privately held Chinese construction conglomerate headquartered in Liyang, Jiangsu Province. The group traces its origin to the 2002 restructuring of the former Liyang Construction Group, when founder and current Chairman Zhang Longhai took the firm private and grew it from under 80M yuan in output value to over 15.8B yuan in annual construction output by 2021. It operates as a multi-discipline general contractor spanning building/civil construction, municipal engineering, foundation/geotechnical works, mechanical and electrical engineering (including refrigeration and PV), decoration/renovation, and steel structure engineering, with approximately 41 subsidiary branches and offices across China (Jiangsu, Beijing, Tianjin, Shanghai, Guangdong, Hainan, Shaanxi, Henan, and beyond) plus an overseas presence in Thailand.

The company holds China's special-grade (特级) construction general contracting qualification — the first in Changzhou/Liyang — together with Class A (甲级) building industry design qualification, enabling integrated design-build (EPC) execution and unrestricted bidding on high-value public works. Technology assets include BIM adoption for project lifecycle management (in partnership with Glodon) and a Smart Construction Site (智慧工地) platform developed through its wholly-owned subsidiary Longhai (Jiangsu) Digital Technology Co., Ltd., which integrates personnel, environment, equipment, materials, quality, and safety monitoring. Notable technical achievements include an ice-storage cooling system design for Beijing Daxing International Airport operating at a 9°C temperature differential.

Revenue is generated predominantly through construction contracts won via public tendering and competitive bidding processes, with the company serving as the main contractor for government and enterprise clients across healthcare, education, transportation, municipal infrastructure, industrial parks, and residential complexes. Customers include Changzhou municipal government, Beijing Daxing International Airport, XPeng Motors Guangdong Zhaoqing Industrial Park, Haiyan Shengshi Bio (硕世生物) Taizhou HQ, Suzhou Industrial Park Second Sewage Treatment Plant, and Nanjing Youth Olympic Cultural Sports Park. The 2022 strategic partnership with Chongqing University Liyang Smart City Research Institute and 2021 alliance with China Aneng Group First Engineering Bureau — a Fortune 500 SOE — extend the firm's reach into R&D, talent cultivation, and large-scale cross-discipline infrastructure. The company is family-owned with no evidence of external PE/VC investors.

Name

Niobium Labs

Legal name

时博

Website

https://niobiumlabs.com

Company type

Private

Founded year

2002

Operating status

Operating

Headcount range

11–50 employees

Short description

Longhai Construction Group (时博/Shibo) is a special-grade Chinese general contractor delivering building, municipal, foundation, mechanical & electrical, decoration, and steel structure construction for government and enterprise clients nationwide.

Ownership category

akta.pro rank

Product category

Construction Services

NAICS

Nonresidential Building Construction (2362), Heavy and Civil Engineering Construction (237), Utility System Construction (2371), Commercial and Institutional Building Construction (236220)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540), Heavy Construction Other Than Bldg Const - Contractors (1600), Construction - Special Trade Contractors (1700)

akta.pro primary industry

Commercial General Contracting (New Build) (IMAFAAAA)

akta.pro secondary industries

Construction Management & Delivery (EPCM/CMAR/Design-Build Oversight) (EUANALAE), Residential General Contracting (New Build) (IMAFAAAB)

Keywords

• Construction general contracting
• Municipal engineering services
• Building construction contractor
• Foundation engineering services
• Steel structure engineering

Headquarters

HQ city

Athína

HQ country

Greece

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Construction General Contracting: Revenue is generated through construction project contracts won via public tendering. The company serves as the main contractor for building construction, municipal engineering, foundation works, mechanical/electrical installation, decoration, and steel structure projects for government and enterprise clients. Revenue recognition is based on project progress over the contract period.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Niobium Labs (Longhai Construction Group / 时博) operates as a comprehensive construction general contractor executing projects across six engineering disciplines: building/civil construction, municipal engineering, foundation/geotechnical engineering, mechanical & electrical installation, decoration/renovation, and steel structure engineering. The company serves government and enterprise clients across China through public tendering, holding the highest-tier Special-Grade general contracting qualification as well as Class A building industry design qualification enabling integrated EPC project delivery.

Product overview

龙海建设集团 (Longhai Construction Group) is a comprehensive construction conglomerate operating primarily as a general contractor across multiple engineering disciplines. The company does not offer a unified software platform but rather provides an integrated portfolio of construction and engineering service offerings: (1) Building/Civil Construction (房建工程) for residential, commercial, and public facilities; (2) Municipal Engineering (市政工程) for infrastructure including roads, bridges, tunnels, and wastewater treatment; (3) Foundation Engineering (基础工程) for pile foundations and excavation support; (4) Mechanical & Electrical Engineering (机电工程) including HVAC, refrigeration, and PV systems; (5) Decoration/Renovation (装修工程); and (6) Steel Structure Engineering (钢结构工程). The company holds Class A general contracting qualifications and specialized engineering certifications. The portfolio is unified under the company's construction service umbrella rather than a modular software architecture.

Differentiator

Problem solved

Functional benefit

Brands

• 龙海数字平台: 龙海（江苏）数字科技有限公司创建的一站式数字科技化施工管理综合服务平台，围绕施工过程中的人员施工、机械设备、物料采购等方面，整合项目施工全产业链相关优质资源，提供供应链金融、集采集管、BIM数字科技等服务。

Products and services

• General Contracting (Construction Project Execution)

Named customers11 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Four partnerships are on record, tiered core and notable.

• 重庆大学溧阳智慧城市研究院 (Chongqing University Liyang Smart City Research Institute)coreStrategic or Co-development Partner · 9 November 2022Longhai Group and Chongqing University Liyang Smart City Research Institute signed a strategic cooperation agreement. The partnership focuses on talent cultivation, new technology R&D, research collaboration, business development, and EPC operations. Chongqing University is one of China's 'Old Eight Architecture Schools' with broad disciplinary advantages and strong research capabilities.
• 中国安能集团第一工程局有限公司 (China Aneng Group First Engineering Bureau Co., Ltd.)coreStrategic or Co-development Partner · 29 May 2021Longhai Group signed a strategic cooperation agreement with China Aneng Group First Engineering Bureau. The partnership covers full-cycle cooperation in large-scale construction engineering projects, combining the respective strengths of both parties. China Aneng Group is a state-owned enterprise under China Merchants Group with qualifications including highway special-grade, highway design Grade-A, municipal Grade-A, and building Grade-A.
• 中交三公局第三工程有限公司 (CCCC Third Highway Engineering Bureau Third Engineering Co., Ltd.)notableStrategic or Co-development Partner · 7 August 2020CCCC Third Highway Engineering Bureau Third Engineering Co., Ltd. visited Longhai Group headquarters for business exchange. CCCC is a Fortune 500 company (subsidiary of China Communications Construction Group) with highway special-grade and other qualifications. The visit aimed to strengthen cooperation and lay foundation for future strategic collaboration.
• 广联达科技股份有限公司 (Glodon Company Limited)notableTechnology or Integration · 23 October 2018Longhai Group received BIM demonstration project certification from Glodon for the Longhai Building project. Glodon recognized the company's BIM technology application achievements and its important role in promoting BIM development in Jiangsu. Glodon provides software and technology services to support the company's digital transformation.

Scale indicators8 records

Recent moves9 records

Expansion highlights5 records

Broad incumbents

• China State Construction Engineering Corporation (CSCEC): CSCEC is the world's largest construction contractor by revenue and China's dominant state-owned general contractor for nonresidential and infrastructure projects. Comparable as the largest-scale Chinese general contractor operating in building, municipal, foundation, and M&E works — though far larger and operating globally, while Longhai is a mid-tier private player with regional density.
• China Communications Construction Company (CCCC): CCCC is a Fortune-500 state-owned infrastructure giant engaged in heavy civil, municipal, and road/bridge construction. Longhai has a strategic engagement with CCCC's Third Highway Engineering Bureau; the two compete for and co-bid on large municipal and infrastructure tenders, making CCCC both an alliance partner and the most direct incumbent benchmark.
• China Energy Engineering Corporation (CEEC / Sinohydro): CEEC is a state-owned mega-contractor for power, energy, and industrial construction. Longhai's M&E and PV/installation work (e.g., Daxing Airport refrigeration, photovoltaic installations) competes with CEEC's energy-infrastructure franchise, making it an incumbent benchmark for Longhai's higher-margin mechanical/electrical segment.

Direct peers

• Jiangsu Nantong Construction Group: Jiangsu Nantong Construction Group is a major privately held Jiangsu-based general contractor with comparable scale (multi-billion yuan revenue), nonresidential/municipal focus, and a presence in Jiangsu Top-100 rankings alongside Longhai. Most direct regional peer sharing the same home-province competitive landscape and customer base.
• Beijing Construction Engineering Group (BCEG): BCEG is a Beijing-based state-owned general contractor serving nonresidential buildings, airports, healthcare, and cultural facilities — closely matching Longhai's marquee project portfolio. Both have won major national awards (Luban, Great Wall Cup) on landmark public buildings and operate integrated design-construction capabilities.
• Shanghai Construction Group: Shanghai Construction Group is a publicly listed, comprehensive general contractor specializing in nonresidential building, municipal, and foundation engineering — directly comparable business mix to Longhai. Both operate as multi-discipline Chinese general contractors with design-build capability, regional density, and a public-sector-led customer base.
• China Aneng Group First Engineering Bureau: China Aneng Group First Engineering Bureau (state-owned, under China Merchants Group) holds highway special-grade, municipal, and building qualifications and is a signed strategic partner of Longhai. Both are large-scale general contractors operating across highway, municipal, and building construction in China, and pursue joint-bid and talent-exchange cooperation.

Regional players

• Zhejiang Construction Investment Group: Zhejiang Construction Investment Group is a major Yangtze River Delta general contractor operating in nonresidential building, municipal, and infrastructure works — overlapping Longhai's project types while serving a different home province. Comparable as an East China regional peer with similar mixed public/private customer mix.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/niobiumlabs
• Facebookfacebook.com/NiobiumLabs
• LinkedInlinkedin.com/company/niobium-labs-ltd.

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries2 records

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 Niobium Labs