MOSS
MOSS Inc. is a Maryland-based, ISO 9001:2015-certified manufacturer of liquid-stable immunoassay reagents — substrates, conjugates, stabilizing diluents, and conjugation kits — serving IVD manufacturers, veterinary diagnostic companies, biotechnology firms, and CROs via direct B2B sales and bulk custom manufacturing.
- Company typePrivate
- Founded1991
- HeadquartersPasadena, United States
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What MOSS does
MOSS Inc. is a Pasadena, Maryland–based specialty manufacturer of liquid-stable immunoassay reagents, founded in 1991 and operating for 34 years. Its product portfolio centers on liquid-stable enzyme substrates (HRP and AP detection in soluble, insoluble, and chemiluminescent formats), liquid-stable conjugates (PE, HRP, AP), stabilizing diluents (MossGuard), conjugation kits (MOSS-Link), and supporting assay buffers, all manufactured at an ISO 9001:2015-certified facility in Maryland with 2000-liter batch capacity and shelf-life stability of 36–48+ months. The underlying technology is a proprietary liquid stabilization chemistry that delivers demonstrated performance (e.g., no HRP activity loss over 3 years at 4°C; 100% conjugate activity retention after 60 days at 37°C), and is the primary technical differentiator versus lyophilized or shorter-shelf-life alternatives.
The company sells primarily to in-vitro diagnostic (IVD) manufacturers, veterinary diagnostic companies, biotechnology and life sciences firms, and contract research organizations. Revenue is generated through one-time B2B reagent product sales, bulk custom manufacturing services (up to 2000L batches with custom bottling, labeling, and packaging), custom conjugation and labeling services, and immunoassay/kit development services. Pricing is quote-based and not publicly disclosed. Distribution is a hybrid of direct enterprise sales — led by the CEO and VP Sales via phone, email, website inquiry, and trade show presence at events such as AACR and ADLM/AACC — and select third-party distributors serving global diagnostics and life sciences markets. In February 2025, MOSS received USDA APHIS listing (MD-TEC-0009), explicitly positioning the company to expand reagent supply into European veterinary diagnostic channels. A separate data source flags a December 2025 acquisition by Vomela Companies, but the source's description of the target as a "premium event graphics and structures" producer is inconsistent with MOSS's immunoassay reagent business; the bio-reagent company shows clear continuing-operations signals (AACR 2026 booth, ongoing trade show activity) and this acquisition entry should be treated as a data-integrity flag pending independent confirmation.
MOSS firmographics
Firmographics- Name
- MOSS
- Legal name
- MOSS Inc.
- Website
- https://mossbio.com
- Company type
- Private
- Founded year
- 1991
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- MOSS Inc. is a Maryland-based, ISO 9001:2015-certified manufacturer of liquid-stable immunoassay reagents — substrates, conjugates, stabilizing diluents, and conjugation kits — serving IVD manufacturers, veterinary diagnostic companies, biotechnology firms, and CROs via direct B2B sales and bulk custom manufacturing.
- Ownership category
- akta.pro rank
MOSS industry classification
Industry- Product category
- Immunoassay Reagent Manufacturing
- NAICS
- In-Vitro Diagnostic Substance Manufacturing (325413), Chemical Manufacturing (325)
- SIC
- In Vitro & In Vivo Diagnostic Substances (2835), Miscellaneous Chemical Products (2890)
- akta.pro primary industry
- Reagents, Chemicals & Assay Kits (Buffers, Antibodies, ELISA, Enzymes) (HLAGAIAI)
- akta.pro secondary industries
- Bioprocess Consumables & Reagents (resins, membranes, media components, buffers) (HLAAAJAI), Raw Materials & Critical Reagents Supply (Media/Resins/Cytokines) (HLAGAGAI)
Keywords
Where MOSS is headquartered
LocationHeadquarters
- HQ city
- Pasadena
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
MOSS business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales
Revenue model
- Reagent Product Sales: Sale of liquid-stable immunoassay reagents including substrates, conjugates, stabilizing diluents, and supporting assay reagents to diagnostic and life sciences manufacturers.
- Bulk Reagent Manufacturing Services: Custom reagent manufacturing at scale (up to 2000L batches) with bottling, labeling, and packaging services. End-to-end support from development to commercialization.
- Conjugation and Labeling Services: Multi-gram batch conjugation services with signal-to-noise optimization, background reduction, and scalable production from small lot to multiple gram scale-up.
- Immunoassay and Kit Development Services: Assay development, optimization, and kit development services with parameter optimization for sensitivity, specificity, and reproducibility.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Pay-as-you-go | B2B reagent products - quote-based pricing |
Go-to-market motion1 record
Distribution channels2 records
Marketing channels4 records
MOSS product offering
Product offeringCore offering
MOSS Inc. manufactures liquid-stable immunoassay reagents — including substrates, conjugates, stabilizing diluents, conjugation kits, and supporting assay buffers — for IVD manufacturers, life sciences, pharma, biotechnology, and veterinary diagnostic companies. The company also provides bulk reagent manufacturing (up to 2,000L batches), custom conjugation and labeling services, and immunoassay/kit development under ISO 9001:2015 quality standards from its Pasadena, Maryland facility.
Product overview
MOSS is a specialized manufacturer of high-quality liquid-stable immunoassay reagents for the IVD, life sciences, pharma, biotechnology, and veterinary diagnostics industries. The core product portfolio centers on liquid-stable substrates (soluble, insoluble, and chemiluminescent formats for HRP and AP enzymes), specialized conjugates (PE, HRP, AP conjugates), MOSS-Link conjugation kits, MossGuard stabilizing diluents, and supporting assay reagents. These products are designed to work together across immunoassay, flow cytometry, and multiplexing platforms including Luminex. MOSS offers comprehensive services including bulk reagent manufacturing (up to 2000L batches), conjugation and labeling services, and immunoassay/kit development. Products are manufactured at the ISO 9001:2015 certified Maryland facility with typical stability of 36-48+ months.
Differentiator
Problem solved
Functional benefit
Products and services
- MOSS Liquid Stable Substrates High-quality liquid-stable enzyme substrates for horseradish peroxidase (HRP) and alkaline phosphatase (AP) detection, available in soluble, insoluble, and chemiluminescent formats. Used by IVD manufacturers and life sciences researchers in ELISA, immunoblotting, microarray, and bead-based assays.
- MOSS Specialized Conjugates Liquid-stable conjugates including Phycoerythrin (PE), Horseradish Peroxidase (HRP), and Alkaline Phosphatase (AP) conjugates with 48+ month stability. Designed for immunoassays, flow cytometry, and multiplexing platforms.
- MOSS-Link Conjugation Kits Ready-to-use conjugation kits for producing custom IgG conjugates with HRP, RPE, FITC, Biotin, and AP. Includes HRP-IgG Kit, RPE-IgG Kit, Biotin Labeling Kit, FITC-IgG Labeling Kit, and AP-IgG Conjugation Kit for labs needing reproducible custom conjugates.
- MossGuard HRP Stabilizing Diluents Stabilizing diluents that preserve the functional integrity and activity of horseradish peroxidase (HRP) conjugates at dilute concentrations for long-term storage. Available in multiple formulations with customizable colors and BSA concentrations for diagnostic manufacturers.
- MOSS Supporting Assay Reagents Optimized immunoassay buffers including conjugate diluents, sample preparation buffers, bead coupling buffers, stop solutions, assay buffers, and hybridization buffers for consistent assay performance.
- MOSS Bulk Reagent Manufacturing Services Large-scale bulk reagent manufacturing for diagnostic and life sciences customers, with 2,000-liter batch capacity and multiple lots produced weekly. Includes custom formulations, bottling (15mL bottles to 1,000L IBCs), labeling, and packaging under ISO 9001:2015.
- MOSS Conjugation and Labeling Services Multi-gram batch conjugation services with signal-to-noise optimization, signal enhancement, and background reduction for diagnostic and research customers. Production is scalable from small lots to multiple gram quantities.
- MOSS Immunoassay and Kit Development Services Assay and kit development services including parameter optimization for sensitivity, specificity, and reproducibility, with commercialization support from development through production for IVD and life sciences manufacturers.
Quantifiable outcome
- Products stable for 36+ months (substrates) and 48+ months (conjugates)
- +3 more outcomes
Companies that use MOSS
Customer profileNamed customers3 records
Segments4 records
Ideal customer profiles4 records
MOSS technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
MOSS partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Vomela CompaniesmajorMoss Inc. was acquired by Vomela Companies, forming a global experiential events production powerhouse. The integration expands Vomela's service offerings, international reach, and operational scale. This represents Moss being absorbed into Vomela's portfolio rather than a traditional partnership.
Scale indicators4 records
Recent moves5 records
Expansion highlights5 records
MOSS competitors and assessment
Company assessmentDirect peers
- Bethyl Laboratories: Specialist antibody manufacturer offering validated antibodies and custom conjugation services. Comparable as a privately-held niche reagent producer serving diagnostic manufacturers and research end-users.
- SouthernBiotech: Birmingham, Alabama-based manufacturer of antibodies and immunoassay reagents including HRP/AP conjugates and secondary reagents. Closely comparable as a similarly-sized, privately-held specialist serving IVD and life sciences customers with a comparable product portfolio.
- Jackson ImmunoResearch: Specialist manufacturer of affinity-purified secondary antibodies and custom antibody conjugates (HRP, biotin, fluorescent). Comparable as a niche, privately-held reagent producer focused on conjugation chemistry for immunoassay and detection applications.
- Rockland Immunochemicals: Privately-held manufacturer of antibodies, antibody conjugates and immunoassay reagents. Directly comparable product range (antibody conjugates, buffers, assay reagents) and similar B2B supply model to diagnostic and research manufacturers.
- AAT Bioquest: Specialist developer of fluorescent and colorimetric immunoassay reagents including substrates and conjugates. Comparable as a niche reagent manufacturer addressing similar ELISA, multiplexing and immunoassay end-markets as MOSS.
- Fitzgerald Industries International: Manufacturer and distributor of antibodies, antigens and immunoassay reagents for the IVD and research markets. Comparable as a similarly-sized specialist supplier with overlapping assay-reagent product lines.
- Surmodics: Historically operated a Diagnostics Reagents business producing immunoassay reagents and substrates; even post-divestiture it remains a comparable reference point for the immunoassay reagent niche MOSS serves.
Broad incumbents
- Bio-Rad Laboratories: Large, diversified life sciences company with a substantial IVD and immunoassay reagent business. Comparable as a broad incumbent offering overlapping substrates, conjugates and immunoassay kits across a much larger product portfolio.
- Bio-Techne: Large life-sciences tools and reagent company housing the R&D Systems brand, with a deep catalogue of immunoassay reagents, antibodies and substrates. Overlaps with MOSS in core reagent categories but at much greater scale.
- MilliporeSigma (Merck KGaA Life Science): Largest life-science reagents and chemicals supplier. Comparable as a broad incumbent in immunoassay reagents, buffers and substrates with global manufacturing and distribution that competes with MOSS at multiple OEM accounts.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
MOSS social profiles
Digital presenceMOSS compliance and trust
Trust signalCompliance2 records
MOSS financial estimates
Financial estimateRevenue estimate
Valuation estimate
MOSS leadership team
Management profileNumber of profiles
Profiles2 records
MOSS funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
MOSS 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 MOSS
What does MOSS do?
MOSS Inc. manufactures liquid-stable immunoassay reagents — including substrates, conjugates, stabilizing diluents, conjugation kits, and supporting assay buffers — for IVD manufacturers, life sciences, pharma, biotechnology, and veterinary diagnostic companies. The company also provides bulk reagent manufacturing (up to 2,000L batches), custom conjugation and labeling services, and immunoassay/kit development under ISO 9001:2015 quality standards from its Pasadena, Maryland facility.
Is MOSS a public or private company?
MOSS is a private company. It is classified as corporate owned and is currently operating.
When was MOSS founded?
MOSS was founded in 1991. It employs 11 to 50 people.
Where is MOSS based?
MOSS is headquartered in Pasadena, United States, in the North America region.
How does MOSS make money?
Four revenue lines are on record. Reagent Product Sales are the primary driver. The others are bulk Reagent Manufacturing Services, conjugation and Labeling Services and immunoassay and Kit Development Services.
Who are MOSS's main competitors?
Direct peers on record are Bethyl Laboratories, SouthernBiotech, Jackson ImmunoResearch, Rockland Immunochemicals, AAT Bioquest, Fitzgerald Industries International and Surmodics. Broad incumbents are Bio-Rad Laboratories, Bio-Techne and MilliporeSigma (Merck KGaA Life Science).
Does MOSS have an API?
No public API is recorded for MOSS.
What industry is MOSS in?
MOSS's product category is Immunoassay Reagent Manufacturing. Its primary akta.pro industry code is HLAGAIAI, Reagents, Chemicals & Assay Kits (Buffers, Antibodies, ELISA, Enzymes), with a secondary code of HLAAAJAI, Bioprocess Consumables & Reagents (resins, membranes, media components, buffers). Its NAICS code is 325413 and its SIC code is 2835.