What Sigmovir Biosystems does

Sigmovir Biosystems, Inc. (SBI) is a privately held Maryland-based biotechnology company operating as a specialty preclinical contract research organization (CRO) centered on the cotton rat (Sigmodon genus) model of human infectious disease. The cotton rat is uniquely permissive to a wide range of human pathogens — including RSV, hMPV, influenza, parainfluenza, adenovirus, measles, HSV, and bacterial agents such as Staphylococcus, Streptococcus, and Mycobacterium tuberculosis — and possesses fully functional Mx genes that respond to infection similarly to human Mx genes, unlike common laboratory mouse strains. SBI's scientists have cloned over 300 cotton rat genes (deposited in GenBank), developed 50+ cotton rat reagents, and produced 50+ peer-reviewed publications (20+ in the last five years), and the company maintains one of the world's largest colonies of inbred cotton rats under AAALAC-accredited husbandry.

The company monetizes this platform through two primary streams: (1) contract research services for academic and commercial clients, covering quantitative virology, histopathology, serology/immunology, molecular diagnostics of viral infections, mucosal immune response evaluation, in vitro screening, and adjuvant delivery / adenovirus-based vector therapy development, with a focus on vaccines and anti-infective agents for respiratory viruses and HSV; and (2) direct sales of cotton rats to commercial and academic institutions for off-site studies. Distribution is entirely domestic through direct B2B channels, with sales and contract-service inquiries routed through a single named commercial lead (Kevin C. Yim) and scientific inquiries handled by the CEO/scientific leadership (Marina Boukhvalova, Jorge Blanco). The model is the de facto "gold standard" for RSV — the FDA relied on cotton rat preclinical data alone to consent clinical trials for RespiGam and Synagis, the latter of which reduced RSV hospitalization in high-risk infants by up to 80%.

SBI is a small organization (1–10 employees) with no disclosed funding rounds, no public revenue, and no named institutional investors. Its strategic posture is that of a niche, scientifically entrenched CRO whose growth lever is depth of platform (transgenic model development, gene/reagent expansion, new service adjacencies) rather than headcount or geographic expansion.

Name

Sigmovir Biosystems

Legal name

Sigmovir Biosystems, Inc.

Website

https://sigmovir.com

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

Sigmovir Biosystems is a Rockville, MD-based preclinical CRO specializing in the cotton rat (Sigmodon) model of human infectious diseases, offering contract research services, laboratory assays, and live cotton rat sales to academic and commercial biotech and pharmaceutical clients.

Ownership category

akta.pro rank

Product category

Preclinical Contract Research (Infectious Disease / Animal Models)

NAICS

Research and Development in Biotechnology (except Nanobiotechnology) (541714)

SIC

Services-Commercial Physical & Biological Research (8731)

akta.pro primary industry

Vaccine R&D, Clinical/Field Trials & Regulatory Affairs (HLAMAKAM)

Keywords

• Contract research services
• Preclinical animal models
• Infectious disease research
• Cotton rat model
• Vaccine development services

Headquarters

HQ city

Rockville

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Contract Research Services: Provides pre-clinical research services using the cotton rat model for academic and commercial clients. Services include quantitative virology, histopathology, serology/immunology, molecular diagnostics, and vaccine/therapeutic testing. Revenue generated through project-based contract work.
2. Cotton Rat Sales: Sales of cotton rats to commercial and academic institutions for off-site research studies. The company maintains one of the largest colonies of inbred cotton rats in the world.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels2 records

Core offering

Sigmovir Biosystems provides contract preclinical research services using the cotton rat (Sigmodon) animal model for human infectious diseases, including validated models for RSV, hMPV, Influenza, Parainfluenza, Adenovirus, HSV-1, and Measles, along with laboratory services such as quantitative virology, histopathology, serology/immunology, molecular diagnostics, and mucosal immune response evaluation. The company also develops adjuvant delivery systems and adenovirus-based vector therapies, and sells inbred cotton rats from one of the world's largest colonies to external academic and commercial researchers.

Product overview

Sigmovir Biosystems is a Maryland-based biotechnology company offering a unified portfolio of contract research services centered around the cotton rat model of human infectious diseases. The core offerings include infectious disease models (RSV, hMPV, Influenza, Para-Influenza, Adenovirus, HSV, and Measles), laboratory research services (Quantitative Virology, Histopathology, Serology, Molecular Diagnostics), and direct sale of cotton rats for off-site research. Additional services include development of adjuvant delivery systems and adenovirus-based vector therapies. The company leverages over 100 years of combined experience in the cotton rat model and has developed over 300 cotton rat gene clones to support preclinical drug discovery and vaccine development.

Differentiator

Problem solved

Functional benefit

Products and services

• Cotton Rat Model Contract Research Services Project-based contract research using the cotton rat model to test vaccines, anti-infective agents, and therapeutics for human infectious diseases. Targeted at academic institutions and commercial biotech and pharmaceutical groups.
• Preclinical Infectious Disease Models Validated cotton rat models for RSV, hMPV, Influenza, Para-Influenza type 3, Human Adenovirus, Herpes Simplex Virus type 1, and Measles virus offered as preclinical platforms to clients.
• Laboratory Research Services Supporting laboratory services including quantitative virology, histopathology, serology/immunology, molecular diagnostics of viral infections, molecular analysis of inflammatory and immune responses, mucosal immune response evaluation, and in vitro screening.
• Cotton Rats for Off-Site Research Sale of inbred cotton rats of various ages to commercial and academic institutions for off-site research, sourced from one of the largest inbred cotton rat colonies in the world.
• Adjuvant Delivery Systems Development Development of adjuvant delivery systems to support vaccine research programs using the cotton rat model.
• Adenovirus-Based Vector Therapy Development Development of adenovirus-based vector therapy for gene delivery applications using the cotton rat model.

Quantifiable outcome

• Synagis decreased hospitalization rate of high-risk infants by up to 80% in clinical trials consented by FDA based solely on cotton rat preclinical data
• +1 more outcomes

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators5 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Jackson Laboratory: Non-profit provider of high-quality laboratory mice and research services, including preclinical model development and in vivo pharmacology. Comparable to Sigmovir in offering specialized animal model infrastructure plus associated research services to pharma/biotech clients.
• Taconic Biosciences: Supplier of genetically engineered rodent models and research services for drug discovery. Directly comparable to Sigmovir's cotton rat sales + contract research revenue model, including breeding of specialized rodent lines for academic/commercial buyers.
• Marshall BioResources: Specialty breeder and supplier of purpose-bred laboratory animals (including ferrets used in respiratory virus research) plus research services. Closely comparable model of monetizing a difficult-to-breed animal line plus associated preclinical services.

Broad incumbents

• Charles River Laboratories: Large-scale preclinical CRO with extensive animal model and in vivo research services for vaccine and therapeutic developers. Relevant as a broad incumbent that competes for similar contract research budgets, though not specialized in the cotton rat.
• Inotiv: Preclinical CRO offering research models, animal health products, and contract research services for drug development. Overlaps with Sigmovir in the animal-model-based contract research segment but at broader scale and scope.
• Labcorp Drug Development (Covance): Global CRO with extensive preclinical and clinical development services including animal model studies. Represents an incumbent alternative that vaccine sponsors may choose for one-stop-shop CRO needs versus Sigmovir's niche specialization.
• Pharmaron: Integrated CRO providing drug discovery and preclinical development services globally. Comparable as a competing CRO option for vaccine and infectious disease sponsors evaluating outsourced preclinical research partners.
• WuXi AppTec: Global CRO/CDMO with preclinical research capabilities including animal model studies. Represents a large-scale alternative for vaccine developers seeking outsourced preclinical research, though focused on broader service portfolio.

Market position

Strengths1 record

Weaknesses4 records

Competitive moat6 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/sigmovir-biosystems-inc.

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 Sigmovir Biosystems