What Sierra BASE does

Sierra BASE Co., Ltd. (주)시에라베이스 is a Ulsan, South Korea-based robotics and AI company founded in 2019 by three POSTECH alumni that sells the SIRIUS platform — an integrated stack of rotary LiDAR SLAM hardware modules, autonomous drone and ground-robot systems, and AI-powered defect-detection software — for infrastructure safety inspection. The core technology combines a proprietary rotating LiDAR that generates 3D point clouds in GPS-denied environments (tunnels, building interiors, urban canyons) with computer vision models trained on 200,000+ damage images, achieving certified SLAM accuracy of 0.128m End-to-End Translation Error and crack detection accuracy of 0.847 mIoU and 0.94 mAP for efflorescence. Sierra BASE delivers inspection as an end-to-end service from automated 3D mapping through AI-based damage detection to report generation, marketed against manual inspection for bridges, tunnels, buildings, dams, ports, telecom towers, and indoor facilities, with claimed outcomes of 80%+ time reduction and approximately KRW 13.23 million cost savings per bridge inspection. The product portfolio spans SIRIUS Core Modules, the SIRIUS Wing indoor drone, SIRIUS Wearable handheld scanner, SIRIUS UGV for tunnels, SIRIUS Handy for confined spaces, SIRIUS Enterprise for third-party commercial drones, and software products SIRIUS GCS and SIRIUS Editor.

Sierra BASE generates revenue through three streams: sale of proprietary hardware modules and drones, subscription-based access to the SIRIUS GCS ground control and SIRIUS Editor reporting software, and on-site inspection services delivered through its Sejong Inspection Service Center. Pricing is quote-based with multi-year contracts typical for enterprise and government customers, which include Korean expressway, power, and telecom operators (Korea Expressway Corporation, Korea Southern Power, Korea Midland Power, SK Telecom) as well as the Goyang Drone Anchor Center. The company holds an unusually dense set of Korean regulatory certifications — GS Grade 1, Construction New Technology NET No. 990, MLIT Innovative Product designation, Smart Construction Leading Company, Inno-Biz, and venture company registration — that are de facto procurement prerequisites for Korean public-sector inspection contracts, and has received the CES 2025 Best of Innovation Award, the Japan Good Design Award, and NIPA Global ICT Future Unicorn selection. Sierra BASE closed a KRW 3.8 billion Series A in August 2025 and is establishing a Japanese subsidiary in 2026 alongside channel partnerships covering Japan, Vietnam, Indonesia, Singapore, India, and the UAE.

Name

Sierra BASE

Legal name

(주)시에라베이스

Website

https://sierrabase.co.kr

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

11–50 employees

Short description

Sierra BASE is a South Korean robotics and AI company that sells the SIRIUS platform — rotary LiDAR SLAM drones, ground robots, and AI damage-detection software — for autonomous safety inspection of bridges, tunnels, buildings, telecom towers, and other infrastructure, primarily serving Korean government agencies and public corporations.

Ownership category

akta.pro rank

Product category

Drone-based Infrastructure Inspection

NAICS

Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511)

SIC

Search, Detection, Navagation, Guidance, Aeronautical Sys (3812), Aircraft Parts & Auxiliary Equipment, Nec (3728)

akta.pro primary industry

Autonomy Software, AI & Mission Management (UAS/UXV) (IMABAIAH)

akta.pro secondary industries

UAS Ground Control Stations (GCS) & Remote Operations Infrastructure (IMABAIAL), Autonomous Flight Control & Guidance Systems (UAS/Urban Air Mobility) (IMABAFAO), Aerial Robotics (Drones & UAV Autonomy) (HDAAAIAG)

Keywords

• Drone infrastructure inspection
• LiDAR SLAM mapping
• AI damage detection
• Autonomous inspection robots
• Digital twin modeling

Headquarters

HQ city

Daejeon

HQ country

South Korea

HQ region

Asia

Offices6 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. Hardware Sales (SIRIUS Modules, Wings, Wearables): Sale of proprietary hardware modules that attach to drones and robots enabling autonomous inspection capabilities. Products include SIRIUS Core Modules, SIRIUS Wing (indoor drone), SIRIUS Wearable (handheld), and SIRIUS Lite.
2. Software Subscriptions (SIRIUS GCS, SIRIUS Editor): Web-based software platforms for inspection management and AI analysis. SIRIUS GCS provides remote drone control and SIRIUS Editor generates automated inspection reports.
3. Inspection Services: On-site inspection services using the company's drone and AI technology for bridges, tunnels, buildings, dams, and other infrastructure. Operates through Inspection Service Center in Sejong.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels9 records

Core offering

Sierra BASE develops autonomous drone-based infrastructure inspection systems through its SIRIUS platform, combining rotary LiDAR SLAM-based 3D mapping, AI-powered damage detection (cracks as small as 0.1mm), and Level 4 autonomous flight for bridges, tunnels, buildings, and other infrastructure. The company sells proprietary hardware modules (SIRIUS Core Module, SIRIUS Wing indoor drone, SIRIUS Wearable handheld, SIRIUS UGV ground vehicle) alongside software platforms (SIRIUS GCS for remote control, SIRIUS Editor for AI report generation), and provides on-site inspection services through its Inspection Service Center.

Product overview

Sierra BASE offers the SIRIUS platform — a unified portfolio of AI-powered infrastructure inspection solutions combining robotics and artificial intelligence. The core SIRIUS Platform integrates rotary LiDAR SLAM technology with autonomous drone/robot operation for 3D digital twin-based safety inspection. The hardware portfolio includes SIRIUS Wing (indoor drone), SIRIUS Wearable (handheld portable device), SIRIUS Core Module (autonomous operation module), and SIRIUS UGV (ground vehicle for tunnels). The software suite comprises SIRIUS GCS (web-based ground control system) for remote drone operations and SIRIUS Editor for AI-powered defect detection and automated report generation. SIRIUS Enterprise enables autonomous flight for commercial drones. This end-to-end solution enables automated inspection of bridges, buildings, tunnels, dams, ports, and indoor facilities without human climbing, reducing inspection time by 80% and costs by 33% while detecting cracks smaller than 0.1mm.

Differentiator

Problem solved

Functional benefit

Brands

• SIRIUS: The flagship AI-powered drone and robot platform for autonomous infrastructure inspection, combining LiDAR SLAM, 3D mapping, and AI-based damage detection for bridges, tunnels, buildings, dams, and other structures.
• SIRIUS GCS
• SIRIUS Editor
• SIRIUS Wing
• SIRIUS Wearable

Products and services

• SIRIUS Platform Unified AI-powered drone and robot platform combining LiDAR SLAM, 3D digital twin technology, and autonomous flight for infrastructure safety inspection. Integrates hardware modules with software for end-to-end automated inspection workflows targeting government agencies, construction firms, and infrastructure operators.
• SIRIUS Core Module Rotary LiDAR-based autonomous robot operation module (Module 1: 2.2kg, Module 2: 1.67kg) that creates virtual spaces and generates autonomous driving paths through high-performance LiDAR and 3D mapping. Attaches to drones or robots to enable autonomous operations in GPS-denied environments for infrastructure inspection.
• SIRIUS Wing Drone product optimized for indoor monitoring without GPS signals, weighing 12.2kg with up to 35-55 minutes flight time with payload. Compatible with SONY ILX-LR and RIEBO SF6 cameras, designed for building exterior wall and indoor facility inspections.
• SIRIUS Wearable Handheld portable inspection solution weighing 8.3kg using rotating LiDAR technology for precise 3D mapping and AI-based safety analysis. Enables digital inspection of indoor spaces, small tunnels, gyms, exhibition halls, and parking lots with 1-hour operating time.
• SIRIUS Handy Portable safety inspection solution commercialized using Korea's first rotating LiDAR technology for precise 3D mapping and AI-based safety analysis in tunnels. Handheld system enables workers to walk while creating 3D maps and detecting micro-cracks as small as 0.1mm.
• SIRIUS Editor AI-based defect detection software that analyzes cracks and defects in concrete structures and generates visual inspection reports. Supports 3D model upload, AI-powered crack detection (mIoU 0.847), defect verification, and report export in Excel, CAD, and Word formats for infrastructure inspection professionals.
• SIRIUS GCS (Ground Control System) Web-based ground control system that automates inspection tasks by leveraging 3D point cloud maps built with LiDAR. Enables remote drone control, automated route generation, and on-site operations management from any internet-connected location for infrastructure inspection teams.
• SIRIUS UGV (Unmanned Ground Vehicle) Unmanned Ground Vehicle solution for tunnel inspections. LiDAR SLAM enables autonomous flight inspections in underground environments where GPS is unavailable, complementing aerial drone inspection capabilities.
• SIRIUS Enterprise Commercial drone autonomous flight linkage system enabling remote control of commercially available drones for autonomous flight operations in infrastructure inspection applications, extending SIRIUS capabilities to third-party drone hardware.
• Infrastructure Inspection Services On-site inspection services delivered through the Sejong Inspection Service Center using Sierra BASE's drone and AI technology for bridges, tunnels, buildings, dams, and other infrastructure. Service includes deployment of the SIRIUS platform for autonomous inspection missions on behalf of government agencies and enterprises.

Quantifiable outcome

• Inspection time reduced by 80%+
• +7 more outcomes

Named customers8 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability8 records

Feature9 records

Partnerships

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

• LiberawarecoreTechnology or Integration · 16 May 2025Korea-Japan drone safety management market expansion partnership. Combining Sierra BASE's autonomous drone and AI monitoring technologies with Liberaware's ultra-small industrial drone expertise to develop next-generation infrastructure safety solutions. Joint development of new markets, co-marketing activities, and establishment of drone safety management as global standard.
• GremsycoreTechnology or Integration · 24 January 2025Partnership with Vietnam's globally renowned gimbal manufacturer for joint development and marketing. Gremsy will customize its Pixy LR premium gimbal for Sierra BASE's drone systems. Collaboration aims to integrate autonomous drone systems with advanced gimbal and payload technologies for next-generation infrastructure diagnostic solutions.
• AccuvercoreChannel Partner/ Reseller/ Distributor · 8 November 2024Japan market entry partnership. Accuver serves as local partner for SIRIUS product exhibition and localization at COMNEXT 2024 and other Japanese events. Strategic partnership for expanding drone-based safety management market in Japan.
• InnoWirelessmajorGTM or Marketing Partner · 2 September 2024Global safety diagnostics market expansion cooperation. Joint development of intelligent drone-based mobile communication measurement innovation technology. Using InnoWireless's overseas network to promote Sierra BASE's facility and building safety diagnosis solution SIRIUS in overseas markets.
• Korea Institute of Industrial Technology (KITECH)majorStrategic or Co-development PartnerCollaborative development of AI-based infrastructure inspection solution SIRIUS. SIRIUS was developed in collaboration with KITECH for precision autonomous flight and AI micro-crack detection features showcased at CES 2026.
• SK TelecommajorStrategic or Co-development PartnerJoint development of 3D tower inspection technology using drones. SKT collaboration for telecom tower inspection solutions utilizing Sierra BASE's drone technology.
• KICC (Korea ICT Innovation Center)majorGTM or Marketing PartnerKICC ICT Growth Program for ASEAN and Oceania market expansion. Funded by Korea's Ministry of Science and ICT, managed by KICC in Singapore with Plug and Play. Provided market immersion, mentorship, and business matching across Singapore, Jakarta, and Sydney.
• Korea International Trade AssociationminorGTM or Marketing PartnerFinal selection for Global Startup Step-up 3rd cohort, providing international expansion support and networking opportunities.
• IMDA (Info-Communications Media Development Authority)majorGTM or Marketing PartnerSingapore government agency co-hosting ASEAN & Oceania Demo Day during SWITCH 2025. Partnership for KICC Demo Days in Singapore's Marina Bay.
• Korea Evaluation DataminorOthersTechnology growth excellence certification partnership for smart safety management platform development for facilities and buildings.
• AGCC (Abu Dhabi Global Market)minorGTM or Marketing PartnerUAE market cooperation through AGCC for Middle East market expansion. Participation in Zytex Expanded North Star Dubai event.
• Korea Production Technology研究院 (KITECH)majorStrategic or Co-development PartnerMOU with AI Applied Manufacturing Equipment Research Center for joint R&D cooperation in intelligent surveillance field, developing AI-based facility autonomous safety inspection solutions.
• Korea Defense Technology Promotion Research InstituteminorStrategic or Co-development PartnerSelected as contracted company for 2023 Ulsan Defense Venture Center program, exploring defense applications of drone inspection technology.
• Astra Digital (Indonesia)minorChannel Partner/ Reseller/ DistributorIndonesian market engagement at KICC Demo Days. ASTRA Digital Strategy praised SIRIUS amid frequent bridge collapses in Indonesia, indicating potential market opportunity.
• Telkom IndonesiaminorChannel Partner/ Reseller/ DistributorIndonesian telecom company exploring telecom tower inspections using SIRIUS technology, amid rising disaster-driven demand for infrastructure safety.

Scale indicators8 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Skydio: US-based autonomous drone manufacturer focused on inspection, public safety and defense. Closest global analog to Sierra BASE in autonomy-first inspection drones, with a similar Level-4-equivalent autonomy thesis but at much greater scale and US-centric GTM.
• Cyberhawk: UK-based drone inspection services and asset management company serving oil & gas, utilities and infrastructure. Directly comparable to Sierra BASE's Inspection Service Center model in providing drone-as-a-service for industrial asset inspection.
• PrecisionHawk: US-based commercial drone inspection and aerial analytics provider with vertical offerings in utilities, construction and agriculture. Comparable AI-driven inspection platform play, though has shifted emphasis toward software/analytics over time.
• Flyability: Swiss maker of the Elios collision-tolerant drone for indoor and confined-space inspection (tunnels, tanks, boilers). Comparable to SIRIUS Wing/Wearable in operating GPS-denied indoor environments for asset inspection.
• Percepto: Israel-based autonomous industrial inspection drone-in-a-box provider for power plants, mining and oil & gas. Directly competes in autonomous drone inspection for critical infrastructure with a similar AI + GCS + reporting software stack.
• DroneDeploy: US drone inspection and mapping software platform with Progress AI for automated defect detection. Comparable to Sierra BASE's SIRIUS GCS + Editor software layer in providing cloud-based inspection analytics over drone-captured data.

Broad incumbents

• Parrot SA: French drone maker with enterprise inspection offerings (Anafi Ai) and Pixhawk-based open autonomy stack. Comparable as a broad-incumbent drone OEM pivoting toward professional inspection, though much larger and less autonomy-specialized than Sierra BASE.
• DJI Enterprise: Global drone OEM dominant in commercial inspection with Matrice series and DJI Terra/Pilot software. Not autonomy-first like Sierra BASE, but its scale, distribution and price aggression define the competitive ceiling for any inspection drone startup.

Regional players

• Terra Drone: Japan-headquartered industrial drone inspection company with strong presence in Asia-Pacific infrastructure, oil & gas and utilities. Most direct Korean-market competitor for Sierra BASE in Japan and SE Asia, with comparable LiDAR/autonomy stack.
• ideaForge: India's largest drone manufacturer focused on defense, surveillance and infrastructure inspection. Relevant peer for Sierra BASE's India GTM motion given both target Indian bridge and tower inspection markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCbcWiPZPDY3jXHGVo2Lxanw
• Instagraminstagram.com/sierrabase_official
• LinkedInlinkedin.com/company/sierra-base

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds3 records

Investors3 records

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 Sierra BASE