iiSM
iiSM Inc. is a South Korean optical technology company founded in 2013 that develops and sells Vein Probe medical vascular imaging devices, SPECTROLIGHT tunable lasers and bandpass filters, and semiconductor inspection systems, serving healthcare, research, and industrial customers across 20+ countries via a global distributor network.
- Company typePrivate
- Founded2013
- HeadquartersSejung, South Korea
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What iiSM does
iiSM Inc. (주식회사 아이에스엠) is a privately held South Korean optical technology company founded in 2013 as a government-funded research startup and headquartered in Sejong-si, with a U.S. subsidiary (Spectrolight Inc., established 2016 in San Jose). The company operates two core business lines under a dual-brand strategy: (1) Vein Probe medical devices — real-time, non-invasive vascular imaging systems (VPism-C+, VPism-D+, VPism-A, SLism-H) used for venipuncture, IV cannulation, phlebotomy, and dermatological procedures, and (2) SPECTROLIGHT spectroscopy solutions — including what the company describes as a world-exclusive Tunable Laser System bridging UV through SWIR (410-1700 nm with 1 nm step software-controlled tuning), FWS Series tunable bandpass filters (255-1700 nm), SL-Pico supercontinuum lasers, and mid-infrared light sources. A third line, Inspection Systems, applies the same spectroscopic technology to semiconductor wafer and glass wafer/advanced substrate inspection.
The company generates revenue primarily through hardware sales of proprietary optical instruments and medical devices, supplemented by customized turnkey optical system design and integration services for enterprise customers. Pricing is quote-based and not publicly disclosed. iiSM sells primarily through a global distributor network — approximately 35 partners for SPECTROLIGHT and 14-15 for Vein Probe — spanning 20+ countries across Asia, Americas, Europe, Africa, and Oceania, complemented by direct sales in Korea and to enterprise customers. The company holds FDA, CE, FCC, MFDS, ISO 13485, and ISO 9001 certifications, and a patent and trademark portfolio of 57 registered IP assets globally, including wireless microscopy technology patents in the US, Europe, and Japan. Named end-customers include NASA, Korean university hospitals, and research institutions in the US, Canada, and Europe.
iiSM firmographics
Firmographics- Name
- iiSM
- Legal name
- 주식회사 아이에스엠 (iiSM Inc.)
- Website
- https://iism.co.kr
- Company type
- Private
- Founded year
- 2013
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- iiSM Inc. is a South Korean optical technology company founded in 2013 that develops and sells Vein Probe medical vascular imaging devices, SPECTROLIGHT tunable lasers and bandpass filters, and semiconductor inspection systems, serving healthcare, research, and industrial customers across 20+ countries via a global distributor network.
- Ownership category
- akta.pro rank
iiSM industry classification
Industry- Product category
- Medical Devices & Optical Instruments
- NAICS
- Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (3345), Analytical Laboratory Instrument Manufacturing (334516), Surgical and Medical Instrument Manufacturing (339112)
- SIC
- Optical Instruments & Lenses (3827), Surgical & Medical Instruments & Apparatus (3841)
- akta.pro primary industry
- Optoelectronic Emitters (LED/Laser/VCSEL) (HDAHALAL)
- akta.pro secondary industries
- Refractive Diagnostics & Biometry (Autorefractors, Keratometers, Topography/Tomography, A-Scan/Optical Biometry) (HLAHAJAA), Microscopy, Imaging & Flow Cytometry Instruments (HLAGAIAE), Open & Minimally Invasive Surgical Instruments (Handheld, Laparoscopic, MIS) (HLAHADAA)
Keywords
Where iiSM is headquartered
LocationHeadquarters
- HQ city
- Sejung
- HQ country
- South Korea
- HQ region
- Asia
Offices2 records
Markets served
iiSM business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Technology or R&D, Supply Chain, Personnel, Operations, Marketing or Sales, Infrastructure
Revenue model
- Medical Device Sales (Vein Probe): Sale of Vein Probe vascular imaging devices - real-time non-invasive vein visualization equipment for medical procedures including IV cannulation, phlebotomy, and aesthetic treatments. Available in multiple models (VPism-C+, VPism-D+, VPism-A) with accessories.
- Spectroscopy Equipment Sales (SPECTROLIGHT): Sale of high-precision optical equipment including Tunable Laser Systems (TLS), Tunable Bandpass Filters (FWS Series), and Light Sources for research and industrial applications.
- Turnkey Solutions: Customized optical system design, development, and implementation services including consulting, technical collaboration, installation, and maintenance support for customer-specific applications.
Go-to-market motion2 records
Distribution channels4 records
Marketing channels9 records
iiSM product offering
Product offeringCore offering
iiSM designs, manufactures, and sells precision optical instruments organized under two sub-brands: Vein Probe medical devices (real-time non-invasive vascular imaging devices used for IV cannulation, phlebotomy, and dermatological procedures) and SPECTROLIGHT spectroscopy solutions (tunable laser systems, tunable bandpass filters, supercontinuum lasers, and light sources for research and industrial applications). The company also produces spectroscopic inspection systems for semiconductor wafer and glass substrate inspection, and offers customized turnkey optical solutions including consulting, design, integration, installation, and maintenance.
Product overview
iiSM is a spectroscopy technology company offering three core product lines: (1) Medical Devices under the Vein Probe brand — real-time non-invasive vascular imaging devices (VPism-C⁺, VPism-D⁺, VPism-A, SLism-H, VPism-Accessory) that visualize subcutaneous veins for venipuncture, phlebotomy, and dermatological procedures; (2) Spectroscopy Solutions under the SPECTROLIGHT brand — providing Tunable Laser Systems (TLS, 410–1700 nm), FWS Series Tunable Bandpass Filters (255–1700 nm), SL-Pico supercontinuum lasers, TML, and light sources for research and industrial applications; and (3) Inspection Systems — precision industrial inspection solutions for spectroscopy-based, silicon wafer, and glass wafer/substrate inspection. The company also provides turnkey and customized optical solutions integrating light sources, optical modules, detectors, and software.
Differentiator
Problem solved
Functional benefit
Brands
- SPECTROLIGHT: Optical solution brand providing Tunable Lasers and Tunable Bandpass Filters based on spectroscopic application technology
- Vein Probe
Products and services
- Tunable Laser System (TLS) Software-controlled tunable laser system spanning UV through SWIR (410-1700 nm) with 1 nm step precision and picosecond-pulsed capability, designed for research and industrial imaging applications.
- FWS Series (Flexible Wavelength Selector / Tunable Bandpass Filter) Tunable bandpass filter series (255-1700 nm) enabling real-time wavelength selection for hyperspectral imaging, machine vision, bio-imaging, and optical metrology, with high damage threshold, throughput above 75%, and out-of-band blocking OD 10 up to 1700 nm.
- SL-Pico (Supercontinuum Laser) Supercontinuum laser light source used in combination with FWS-Poly Tunable Bandpass Filter for configurable tunable laser system setups in research and industrial applications.
- TML (Tunable Mid-Infrared Light Source) Mid-infrared tunable light source in the Spectrolight product family for spectroscopy applications requiring mid-IR wavelengths.
- Vein Probe (Brand Product Line) Real-time non-invasive vascular imaging devices under the Vein Probe brand that use specialized safe light source to visualize subcutaneous veins for venipuncture, phlebotomy, IV cannulation, and dermatological procedures in neonates, elderly, and obese patients.
- VPism-C+ Vein Probe handheld model variant providing real-time non-invasive vascular imaging for precise visualization of subcutaneous veins during clinical procedures.
- VPism-D+ Vein Probe handheld model variant providing real-time non-invasive vascular imaging for precise visualization of subcutaneous veins during clinical procedures.
- VPism-A Vein Probe model variant providing real-time non-invasive vascular imaging for precise visualization of subcutaneous veins during clinical procedures.
- SLism-H Handheld model within the Vein Probe product line providing real-time non-invasive vascular imaging for clinical use.
- VPism-Accessory Accessories and peripherals for the Vein Probe product line, including wheelstand and mounting options for clinical use.
- Inspection Systems Precision industrial inspection solutions built on spectroscopic application technology, including spectroscopic-based inspection, silicon wafer inspection for semiconductors, and glass wafer/advanced substrate inspection.
- Turnkey Optical Solutions Customized optical system design, development, and implementation services including consulting, technical collaboration, installation, and maintenance support tailored to specific customer applications.
Quantifiable outcome
- TLS offers widest wavelength range covered by a TLS globally (410-1700 nm)
- +2 more outcomes
Companies that use iiSM
Customer profileNamed customers5 records
Segments3 records
Ideal customer profiles2 records
iiSM technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
iiSM partnerships and signals
Strategic signalPartnerships
Twelve partnerships are on record, tiered minor and core.
- SM TechminorExhibition co-exhibitor partner at LASER KOREA 2026 (Booth 3H08) for TLS-RED product demonstration
- KOS (Korea Optical Society)minorPartner at ISPSA 2026 (KOS booth/table) for TLS-RED product demonstration at semiconductor physics symposium
- MSH SYSTEMS, INC.coreJapanese distribution partner for SPECTROLIGHT products at OPIE '26 exhibition (Booth L-21)
- KLV CO., LTD.coreJapanese distribution partner for SPECTROLIGHT products at OPIE '26 exhibition (Booth H-36)
- PHOTOTECHNICA CORP.coreJapanese distribution partner for SPECTROLIGHT products at OPIE '26 exhibition (Booth S-16)
- OPTO-LINE, INC.coreJapanese distribution partner for SPECTROLIGHT products at OPIE '26 exhibition (Booth C-01)
- HongKe Technology Co., Ltd.coreChinese distribution partner at LASER World of PHOTONICS CHINA 2026 (Booth E6.6115) demonstrating ML-TH Broadband Light Source combined with POLY system for tunable light source configuration
- Beijing DynaSense Photonics (Star Spectrum)coreChinese distribution partner at LASER World of PHOTONICS CHINA 2026 (Booth E6.6348) demonstrating SPECTROLIGHT Tunable Laser System wavelength tuning capabilities
- SPLG (Shenzhen) Technology Co., Ltd.coreChinese distribution partner at LASER World of PHOTONICS CHINA 2026 (Booth N4.4716) demonstrating SL-Pico Supercontinuum Laser with FWS-Poly Tunable Bandpass Filter for tunable laser system configuration
- RPMC PhotonicscoreOfficial U.S. partner and co-exhibitor for SPECTROLIGHT products at major exhibitions including PHOTONICS WEST 2026 (Booth #3687). Distributes and promotes tunable laser systems and bandpass filters in the American market with joint live demonstrations and technical consultations.
- SPECTROLIGHT Brand (Vein Probe)coreRegional distributors for medical devices including CREATIO Corporation (Japan), Dhai Taiba Medical (Saudi Arabia), LaserQuant (India), Marche World (Malaysia), MSD Technology (Vietnam), PT KASIH KARUNIA KEKAL (Indonesia), LARGEN MED (Philippines), and S.C. SOLMED PROIECT (Romania)
- SPECTROLIGHT Distributorscore35 global distributors including RPMC Lasers (USA), GWU-Lasertechnik (Germany), HongKe Technology (China), SHANGHAI STAR SPECTRUM (China), Opto-Line (Japan), MSH Systems (Japan), OPTOPRIM France, EINST Technology (Singapore), and others across all major regions
Scale indicators7 records
Recent moves7 records
Expansion highlights5 records
iiSM competitors and assessment
Company assessmentDirect peers
- Toptica Photonics: Toptica Photonics manufactures tunable diode lasers and ultrafast laser systems for quantum optics, biophotonics, and metrology. It competes with iiSM's TLS in the research tunable laser market, particularly for spectroscopy and bio-imaging applications.
- NKT Photonics: NKT Photonics is a leading supplier of supercontinuum white light sources and tunable lasers, directly comparable to iiSM's SL-Pico supercontinuum and TLS products. It serves similar biophotonics, metrology, and research customers.
- AccuVein: AccuVein is the leading dedicated vein visualization company, selling the AV500 and AV400 handheld NIR vein illumination devices to hospitals and clinics globally. It is the most direct head-to-head competitor to iiSM's Vein Probe in vascular access imaging.
- Christie Medical Holdings (VeinViewer): Christie Medical manufactures the VeinViewer line of near-infrared vascular imaging systems used in hospitals for IV access and phlebotomy. It competes directly with iiSM's Vein Probe across the same hospital and clinical segments.
Broad incumbents
- Olympus Corporation: Olympus manufactures medical imaging, endoscopy, and microscopy products, and is a relevant comparable for iiSM's bio-imaging spectroscopy solutions and Vein Probe-adjacent medical visualization products.
- Thorlabs: Thorlabs is a major US-based photonics company offering an extensive catalog of optical components, light sources, lasers, and spectroscopy modules. It is a direct competitor in the research-grade spectroscopy and laser product space where iiSM's SPECTROLIGHT brand operates.
- Hamamatsu Photonics: Hamamatsu Photonics is a global leader in photonic components, light sources, detectors, and spectroscopy instruments. Its broad spectroscopy, laser, and optical sensor product portfolio overlaps materially with iiSM's SPECTROLIGHT tunable laser and bandpass filter offerings.
- Coherent Corp: Coherent (formerly II-VI) is a global leader in laser and photonics technology, offering a broad portfolio including tunable lasers, inspection systems, and semiconductor materials processing tools. It is a much larger incumbent competing across iiSM's spectroscopy and inspection product lines.
- Carl Zeiss Meditec: Carl Zeiss Meditec is a global medical technology company with a portfolio spanning ophthalmic devices, surgical microscopy, and optical inspection. It shares iiSM's positioning at the intersection of medical imaging and advanced photonics, though at vastly larger scale.
Emerging players
- M Squared Lasers: M Squared Lasers develops tunable lasers, photonic platforms, and quantum technology tools for research and industrial applications. It is a comparably-sized emerging player in the same specialty photonics segment as iiSM's SPECTROLIGHT business.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks7 records
Key highlights7 records
Customer concentration
iiSM social profiles
Digital presenceiiSM compliance and trust
Trust signalCompliance6 records
iiSM financial estimates
Financial estimateRevenue estimate
Valuation estimate
iiSM leadership team
Management profileNumber of profiles
Profiles1 record
iiSM funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
iiSM M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about iiSM
What does iiSM do?
iiSM designs, manufactures, and sells precision optical instruments organized under two sub-brands: Vein Probe medical devices (real-time non-invasive vascular imaging devices used for IV cannulation, phlebotomy, and dermatological procedures) and SPECTROLIGHT spectroscopy solutions (tunable laser systems, tunable bandpass filters, supercontinuum lasers, and light sources for research and industrial applications). The company also produces spectroscopic inspection systems for semiconductor wafer and glass substrate inspection, and offers customized turnkey optical solutions including consulting, design, integration, installation, and maintenance.
Is iiSM a public or private company?
iiSM is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was iiSM founded?
iiSM was founded in 2013. It employs 11 to 50 people.
Where is iiSM based?
iiSM is headquartered in Sejung, South Korea, in the Asia region.
How does iiSM make money?
Three revenue lines are on record. Medical Device Sales (Vein Probe) is the primary driver. The others are spectroscopy Equipment Sales (SPECTROLIGHT) and turnkey Solutions.
Who are iiSM's main competitors?
Direct peers on record are Toptica Photonics, NKT Photonics, AccuVein and Christie Medical Holdings (VeinViewer). Broad incumbents are Olympus Corporation, Thorlabs, Hamamatsu Photonics, Coherent Corp and Carl Zeiss Meditec. M Squared Lasers is listed as an emerging player.
Does iiSM have an API?
No public API is recorded for iiSM.
What industry is iiSM in?
iiSM's product category is Medical Devices & Optical Instruments. Its primary akta.pro industry code is HDAHALAL, Optoelectronic Emitters (LED/Laser/VCSEL), with a secondary code of HLAHAJAA, Refractive Diagnostics & Biometry (Autorefractors, Keratometers, Topography/Tomography, A-Scan/Optical Biometry). Its NAICS code is 3345 and its SIC code is 3827.