What Bii Group does

Bii Group (Beijing Tian Di Hu Lian Information Technology Co., Ltd. / 天地互连) is a Beijing-headquartered, privately held technology services firm founded in 1999 that operates as a third-party testing, certification, and standards authority for next-generation internet infrastructure. Its core operations revolve around the Global IPv6 Test Center — which accounts for approximately 45% of global IPv6 test volume and has issued over 2,000 IPv6 Ready certifications — and the Global SDN Test Certification Center, the first ONF-authorized international OpenFlow certification laboratory outside the United States. The company leads the development and maintenance of the IPv6 Ready Logo, IPv6 Enabled Logo, IPv6 Education Logo, IPv6 Ready SRv6 Logo, and IEEE 1888 (ISO/IEC/IEEE 18880) standards, and operates globally distributed IPv6 public DNS services (240c::6666 / 240c::6644) and the Yeti DNS Project for IPv6 root server architecture.

Bii Group's technology portfolio includes proprietary systems such as the IPv6 Root Server System (Yeti DNS Project), the 6DNS enterprise recursive DNS system, the OFsuite OpenFlow v1.3 testing tool, and the IEEE 1888 open-source protocol stack for smart energy IoT. The company generates revenue primarily through professional services: certification testing fees (IPv6 Ready/Enabled, OpenFlow, CE Router, CDN, Cloud, Security, SRv6, APP), planning and consulting engagements (IPv6/SDN network design, migration, transition validation), and project-based smart energy solutions built on IEEE 1888 for buildings, campuses, and industrial applications. Customer segments are diverse and include Chinese state-owned telecom operators (China Telecom, China Unicom, China Mobile), network equipment manufacturers (Huawei, ZTE, H3C), cloud providers (Tencent Cloud, Alibaba Cloud, Huawei Cloud, China Mobile Cloud), government entities (50 Beijing Olympic venues, Macau MUST), energy and industrial players (PetroChina/CNPC, Zhongguancun Software Park), and academic institutions (Renmin University, Nanjing University, University of Tokyo).

The business model is event-driven and community-led, relying on flagship conferences (Global IPv6 Summit, GNTC, GDTC), industry alliances (Zhongguancun Next-Generation Internet Industry Alliance with 1,000+ members, China SDN Professional Committee, Smart Energy Industry Innovation Strategic Alliance), and standards leadership (chairman Liu Dong's roles on IEEE-SA Standards Board, IPv6 Forum, and ICANN). Pricing is not publicly disclosed and is generally project- or contract-based for government and enterprise engagements. The company is exploring adjacent verticals through the 2025 CFIEC-IDSA-CATARC cross-border automotive data cooperation and the 2025-2026 "Agent Internet" / IPv6+AI strategic narrative, signaling intent to extend its standards authority into AI-era data infrastructure.

Name

Bii Group

Legal name

北京天地互连信息技术有限公司

Website

https://biigroup.com

Company type

Private

Founded year

1999

Operating status

Operating

Headcount range

11–50 employees

Short description

Bii Group is a Beijing-based third-party testing, certification, and standards authority for next-generation internet infrastructure, operating the Global IPv6 Test Center (~45% global share) and Global SDN Test Certification Center, serving telecom operators, equipment vendors, cloud providers, government, and academic institutions with certification, consulting, and smart energy solutions.

Ownership category

akta.pro rank

Product category

Network Testing and Certification Services

NAICS

Testing Laboratories and Services (54138), Engineering Services (54133), Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515)

SIC

Services-Testing Laboratories (8734), Laboratory Analytical Instruments (3826), Oil & Gas Field Machinery & Equipment (3533)

akta.pro primary industry

NFV Testing, Validation & Assurance (HDAFANAJ)

akta.pro secondary industries

Third-Party Certification, Code Compliance & Regulatory Inspection (ASME/API/ISO) (EUAEAHAN), Data Management, LIMS & Compliance Software (ELN, eDMS, reporting automation) (EUANAJAE)

Keywords

• IPv6 testing certification
• SDN conformance testing
• DNS infrastructure services
• Smart energy platforms
• Network protocol consulting

Headquarters

HQ city

Beijing

HQ country

China

HQ region

Asia

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. IPv6测试认证服务 (IPv6 Testing & Certification): Third-party IPv6 testing and certification services including IPv6 Ready Logo, IPv6 Enabled Logo, IPv6 Education Logo certifications for network equipment, websites, applications, CDN, cloud services, and data centers globally. Revenue is generated through testing fees, certification fees, and consulting services.
2. SDN/NFV测试认证服务 (SDN/NFV Testing & Certification): Third-party SDN/NFV testing including OpenFlow conformance certification, controller/switch performance testing, interoperability testing, OPNFV CVP testing, NFV functional/performance/interoperability testing, custom testing solutions, and training services. Services include ONF OpenFlow v1.0 and v1.3 certification.
3. IPv6规划咨询服务 (IPv6 Planning & Consulting): IPv6 business planning consulting services including IPv6 address planning and management, IPv6 network design and verification, IPv6 transition technology validation and deployment, IPv6 test verification system establishment, and smart agriculture/smart oilfield planning.
4. SDN/NFV规划咨询服务 (SDN/NFV Planning & Consulting): SDN/OpenFlow environment deployment planning, testing, application development guidance, and SDN/OpenFlow solution consulting for data centers, campus networks, and industry networks.
5. 智慧能源平台与服务 (Smart Energy Platform & Services): Smart energy industry solutions based on IEEE 1888 standard, including IoT planning consulting, open platform development, protocol stack licensing, and smart energy solutions for buildings, campuses, agriculture, and oil fields.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels7 records

Core offering

Bii Group operates as a third-party testing, certification, and standards platform for next-generation internet technologies. The company runs the Global IPv6 Testing Center (~45% of global test volume) and the Global SDN Test Certification Center, providing IPv6 Ready/Enabled certification, ONF OpenFlow conformance certification, and consulting for IPv6 migration, SDN/NFV deployment, and IEEE 1888-based smart energy solutions. It also operates globally deployed IPv6 Public DNS infrastructure and the Yeti DNS Project (IPv6 root server system).

Product overview

Bii Group (天地互连) operates as an internet infrastructure technology public service platform focused on IPv6, SDN/NFV, DNS root systems, and IoT technologies. The company provides testing and certification services (IPv6 Ready/Enabled Logo, SDN OpenFlow certification), public DNS services (IPv6 Public DNS, 6DNS system), technical consultancy (IPv6/SDN planning), and industry solutions (smart agriculture, smart oilfield, smart buildings). The core offerings are the Global IPv6 Testing Center and Global SDN Testing Certification Center, supported by standards development (IEEE 1888 ecosystem), international cooperation (IPv6 Forum, ICANN, IETF, APNIC partnerships), and industry promotion through conferences like the Global IPv6 Summit and GNTC.

Differentiator

Problem solved

Functional benefit

Brands

• 下一代互联网国家工程中心: Subsidiary and research arm focused on IPv6 root server systems research and global deployment operations
• 全球SDN测试认证中心 (SDNCTC)
• 全球IPv6测试中心
• 6DNS系统
• IPv6公共DNS

Products and services

• IPv6 Testing Certification Service Third-party IPv6 testing and certification services including IPv6 Ready Logo, IPv6 Enabled Logo, and IPv6 Education certification programs for network equipment, websites, CDN, cloud services, and data centers globally.
• SDN/NFV Testing Certification Service Third-party SDN/NFV testing and certification providing ONF OpenFlow conformance certification, SDN controller and switch performance testing, NFV functionality/performance/interoperability testing, and SDN/NFV solution testing for global equipment vendors and operators.
• IPv6 Public DNS Service Free public DNS service providing pure IPv6 recursive resolution at addresses 240c::6666 (primary) and 240c::6644 (backup), with DNSSEC validation and DNS64 support, deployed with global recursive nodes.
• 6DNS System DNS recursive service system for enterprise and operator IPv6 upgrade, providing security against hijacking, correct resolution results, threat filtering, load balancing, and caching management.
• IPv6 Root Server System (Yeti DNS Project) IPv6 root server system research and global deployment operations, including the 'Snowman Plan (Yeti DNS Project)' proposing 'one naming system, multiple addressing methods' as a novel IPv6 root server technical architecture.
• IPv6 Consultancy Services IPv6 next-generation internet construction planning consultancy including IPv6 address planning and management, IPv6 network design and verification, IPv6 transition technology validation and deployment, and IPv6 test verification system establishment.
• SDN Consultancy Services SDN business planning team assisting clients with SDN network and SDN application planning and design, including OpenFlow environment deployment, SDN/OpenFlow testing, application development guidance, and solution recommendations.
• IEEE 1888 Smart Energy Platform Smart energy open platform based on IEEE 1888 ubiquitous green community control network protocol, including open source protocol stack, development kits, and smart energy solutions for buildings, industrial, and campus applications.
• OFsuite Testing Tool World's first OpenFlow v1.3 dedicated testing suite that fully covers ONF OpenFlow v1.3 test specifications, providing comprehensive automated testing support for device certification.
• IPv6 Smart Agriculture Solution IPv6-based intelligent agriculture solutions including real-time environmental data collection (temperature, humidity, light, soil conditions) and automatic control systems for agricultural facilities.
• IPv6 Smart Oilfield Solution IPv6-based 'smart oilfield' planning and deployment system, already deployed at China National Petroleum Corporation North China Oilfield, representing the largest-scale informatization infrastructure in the petroleum industry.

Quantifiable outcome

• 45% energy savings achieved in IEEE 1888 deployments in certain projects
• +6 more outcomes

Named customers9 records

Segments6 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

16 partnerships are on record, tiered major, core and minor.

• International Data Spaces Association (IDSA, 国际数据空间协会)majorStrategic or Co-development Partner · 1 December 2025Strategic cooperation framework signed at the 2025 GDTC Global Data Technology Conference between CFIEC (Bii Group), IDSA, and CATARC (China Automotive Technology and Research Center) for cross-border automotive data flow between China and Europe. Focus on intelligent connected vehicles and power batteries.
• China Unicom (中国联通)majorStrategic or Co-development Partner · 1 December 2019Bii Group's CFIEC joined China Unicom's 5G Blockchain Partner Plan and signed 5G Chain Network project cooperation agreements with China Unicom Network Technology Research Institute, China Unicom Jiangsu, and Century Interconnect to advance blockchain-enabled telecom network applications.
• Macau University of Science and Technology (澳门科技大学)majorStrategic or Co-development Partner · 1 August 2019Joint establishment of the International Institute for Next-Generation Internet (下一代互联网国际研究院) and the Next-Generation Internet Technology Innovation Center (下一代互联网技术创新中心) at MUST. Liu Dong serves as director of both institutes. Research focuses on next-generation internet key technologies, industrial applications, and cyberspace governance.
• APNIC (亚太互联网络信息中心)majorStrategic or Co-development Partner · 1 July 2019Strategic cooperation agreement signed in 2019 covering IPv6 technology research, IP address management, new internet infrastructure, standards development, and industry ecosystem building. Joint work on IPv6 development monitoring platforms for the Asia-Pacific region.
• China Telecom Beijing Research Institute (中国电信北京研究院)coreStrategic or Co-development Partner · 1 May 2019Joint establishment of 'Next-Generation Internet IPv6 New Technology Joint Laboratory' in 2019 for IPv6 technology research, experimental verification, and commercial trials. Collaboration covers IPv6 root DNS, IoT applications, blockchain innovation, and IEEE standards development.
• Nanjing Jiangbei New Area (南京江北新区)majorStrategic or Co-development Partner · 1 November 2018Bii Group established the Nanjing Innovation Center (下一代互联网国家工程中心南京创新中心), Supercomputing Center (超级算力中心), and IPv6 Next-Generation Internet International Industrial Innovation Center in Nanjing Jiangbei New Area. Multiple joint innovation platforms for 6G, blockchain, quantum technology, satellite networks, cybersecurity, and IPv6.
• Wasu Group (华数集团)majorStrategic or Co-development Partner · 1 January 2018Bii Group cooperated with Wasu Group to build and operate the world's first industry IPv6 root server system.
• Zhijiang Laboratory (之江实验室)minorStrategic or Co-development Partner · 1 January 2018Joint establishment of 'Zhijiang Laboratory Next-Generation Internet Research Center' (之江实验室下一代互联网研究中心) in 2018 for next-generation internet technology research.
• IEEE (电子电气工程师协会)coreStrategic or Co-development Partner · 1 December 2017Bii Group chairman Liu Dong was appointed IEEE-SA Standards Board Member (2018 onwards) and serves as IEEE 1888 Committee Chair. Bii led the development of IEEE 1888 (ISO/IEC/IEEE 18880), the world's first energy internet international standard from China. IEEE and Bii collaborate on IPv6, SDN, and smart energy standards development.
• ONF (开放网络基金会)coreStrategic or Co-development Partner · 1 August 2013ONF authorized Bii Group's Global SDN Test Certification Center as the world's first international OpenFlow certification laboratory outside the US. Bii co-organizes ONF PlugFest testing activities, contributes to OpenFlow standard development, and jointly developed the OFsuite test tool. Bii received ONF Distinguished Service Award in 2014.
• China Next Generation Internet Experts Committee (中国下一代互联网示范工程专家委员会)majorStrategic or Co-development Partner · 1 January 2012Bii Group serves as the secretariat for the China SDN Professional Committee, which had over 80 member units as of 2015 covering research institutions, operators, equipment vendors, and internet companies.
• Tsinghua University (清华大学)majorStrategic or Co-development Partner · 1 January 2008Tsinghua University is a founding member of the IEEE 1888 working group and has deployed IEEE 1888 and IPv6 smart energy solutions on campus. Joint research on next-generation internet and SDN technologies since 2001.
• China Telecom (中国电信)majorStrategic or Co-development Partner · 1 January 2005Long-standing strategic partnership since 2005. China Telecom collaborated with Bii on IEEE 1888 standard development, IPv6 website migration platform (Smart6), and joint participation in CNGI projects. China Telecom is a co-sponsor of IEEE 1888 standard and partner in smart energy deployments.
• EU FP6 Go4IT Project (欧盟第六框架Go4IT项目)majorStrategic or Co-development Partner · 1 January 2005Bii Group participated in the EU 6th Framework Programme Go4IT project from 2005-2008 alongside ETSI, Chinese and European partners. The project developed next-generation internet testing platforms using TTCN-3 technology. This was the only China-EU next-generation internet project in FP6.
• IPv6 Forum (全球IPv6论坛)coreStrategic or Co-development Partner · 1 January 2003Bii Group is a permanent board member and China chair of IPv6 Forum. They co-developed and maintain the IPv6 Ready Logo certification program. Liu Dong serves as IPv6 Enabled Logo Committee Chair. Bii operates the Global IPv6 Test Center as the official IPv6 Forum-authorized testing laboratory.
• Beijing University of Posts and Telecommunications (北京邮电大学)majorStrategic or Co-development Partner · 1 January 2001Long-standing academic partnership since 2001, including joint next-generation internet R&D center and collaboration on EU Go4IT project. BUPT is a founding member of the IEEE 1888 working group.

Scale indicators10 records

Recent moves14 records

Expansion highlights6 records

Others

• APNIC: Asia-Pacific regional Internet registry; signed 2019 strategic cooperation with Bii covering IPv6 research, IP management, and standards — comparable as an IPv6-adoption stakeholder, with related reach into APAC operators and policy bodies.
• IPv6 Forum: Global industry alliance behind the IPv6 Ready Logo program — Bii operates the global IPv6 Test Center under its authority. Highly adjacent ecosystem partner; comparable as the standards/ecosystem anchor that gives Bii its certification authority.
• ONF (Open Networking Foundation): Standards alliance driving SDN/OpenFlow specifications — Bii is its authorized global OpenFlow test lab and partner, but ONF could in principle build or certify alternative labs, making it both a strategic partner and an indirect competitive threat.

Broad incumbents

• TÜV Rheinland: Global third-party testing, inspection and certification body operating across industrial, ICT, and energy verticals. Comparable as a broad incumbent in the third-party certification services market that Bii's testing centers compete against for ICT and energy verticals.
• ICANN: Global DNS root-server and identifier-coordination authority; Bii's chairman sits on the ICANN board and Bii operates IPv6 root server infrastructure (Yeti/Snowman). Comparable as a global DNS-root governance organization with adjacent IPv6 policy authority.
• ETSI (European Telecommunications Standards Institute): European regional standards body with active IPv6, NFV, and oneM2M testing programs that overlap with Bii's standards and certification work — broader portfolio but a co-equal testing/conformance authority that competes for vendor certification engagements.

Direct peers

• UNH-IOL (University of New Hampshire InterOperability Laboratory): US-based third-party testing laboratory that has collaborated with Bii on OFsuite cross-lab validation and operates IPv6/SDN interoperability testing programs. Directly comparable as a neutral IP-protocol conformance test center serving equipment vendors globally.
• Keysight Technologies (Ixia): Test and measurement vendor (includes the former Ixia network-test business) supplying Ethernet, routing, and SDN/NFV conformance tools to equipment vendors and operators — comparable to OFsuite-based offerings around OpenFlow and IPv6 conformance validation.
• Spirent Communications: Global vendor of network testing and measurement equipment and conformance services for routing, switching, and SDN/NFV — directly comparable as a competing supplier of test infrastructure for IPv6, OpenFlow, and carrier-grade network equipment vendors.

Regional players

• China Academy of Information and Communications Technology (CAICT): Chinese government-affiliated ICT research and standards institute that conducts IPv6 and telecom testing for the Chinese market; comparable to Bii as a domestic testing and standards authority but with regulator backing rather than independent operator status.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/BIIGROUP

Compliance11 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries6 records

Funding overview

Funding rounds

Investors

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

M&A

Investments

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Frequently asked questions about Bii Group