Verity Software House

What Verity Software House does

Verity Software House (legally Cytonome/ST LLC) is a privately held US software company specializing in cytometry data analysis tools for flow cytometry, spectral flow cytometry, and mass cytometry (CyTOF). The company serves academic research laboratories, hospital clinical flow cytometry laboratories, and biotechnology users worldwide. Its core product suite comprises WinList (gate-based cytometry analysis with Cen-se' and t-SNE dimensionality reduction), ModFit LT (the industry-standard DNA cell-cycle analysis and proliferation studies software in use since the early 1990s), GemStone (high-dimensional cytometry analysis based on patented Probability State Modeling, US Patent 7,653,509 / EU Patent EP2183681), and V-Comp (automated fluorescence compensation utility with optional 21 CFR Part 11 Compliance mode). Underlying technical differentiators include Probability State Modeling for objective, gating-free cell classification, the proprietary Cen-se' dimensionality reduction algorithm, and automated cell-cycle processing algorithms (AutoDebris, AutoAggregates, AutoLinearity).

The company operates a product-led, direct-to-customer go-to-market motion through its website (vsh.com), offering 30-day free trials (5-day for V-Comp), downloadable reader software, and a comprehensive library of documentation, video tutorials, and cytometry courses. Revenue is generated through a mix of perpetual licenses (e.g., GemStone primary at $2,195, additional seats at $900) and annual subscriptions (e.g., GemStone at $1,100/computer/year), with volume pricing available on contact. The company runs with 1-10 employees from a Maine-based headquarters, has no disclosed external funding, and maintains active software updates and customer support operations. Strategic positioning emphasizes cross-vendor instrument compatibility (BD Biosciences, Beckman Coulter, Sony, Cytek, Miltenyi, Standard Bio) and compliance-grade features for clinical and regulated environments.

Name

Verity Software House

Legal name

Cytonome/ST LLC

Website

https://vsh.com

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

1–10 employees

Short description

Verity Software House (Cytonome/ST LLC) develops cytometry analysis software — WinList, ModFit LT, GemStone, and V-Comp — for research and clinical flow cytometry laboratories worldwide, using patented Probability State Modeling technology and a direct-to-customer perpetual and subscription licensing model.

Ownership category

akta.pro rank

Product category

Flow Cytometry Analysis Software

NAICS

Software Publishers (5132)

akta.pro primary industry

Bioinformatics & Multi-omics Analysis Software (HLAGAJAD)

akta.pro secondary industries

Flow Cytometry & Cellular Analysis Diagnostics (HLAHAAAF), Laboratory Informatics for Diagnostics (LIS/Middleware/Analyzer Connectivity) (HLAHAAAO)

Keywords

• Flow cytometry software
• DNA cell cycle analysis
• Mass cytometry analysis
• Fluorescence compensation tools
• High-dimensional cytometry

Headquarters

HQ city

Topsham

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. Software Licenses: Perpetual and annual subscription licenses for cytometry analysis software products. Perpetual licenses provide lifetime access with optional paid updates; annual subscriptions provide continuous access with latest versions included.
2. Software Licenses: Perpetual and annual subscription licenses for cytometry analysis software products. Perpetual licenses provide lifetime access with optional paid updates; annual subscriptions provide continuous access with latest versions included.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Verity Software House develops and sells specialized cytometry data analysis software for the international flow cytometry community. Its portfolio includes WinList for gate-based analysis, ModFit LT for DNA cell-cycle analysis, GemStone for high-dimensional analysis using patented Probability State Modeling, and V-Comp for automated fluorescence compensation, serving research and clinical laboratories worldwide.

Product overview

Verity Software House offers a portfolio of specialized cytometry software products. The core offerings include WinList for gate-based flow cytometry analysis with advanced dimensionality reduction (Cen-se', t-SNE) and N-Color Compensation; ModFit LT as the industry-standard solution for DNA cell-cycle analysis and proliferation studies; GemStone for automated probability-based analysis of high-dimensional flow and mass cytometry data using Probability State Modeling technology; and V-Comp as a standalone automated fluorescence compensation utility that integrates with WinList. The products share interoperability via DDE connections and file format compatibility, addressing the complete workflow from raw cytometer data acquisition through advanced analysis, compensation, and publication-ready reporting.

Differentiator

Problem solved

Functional benefit

Brands

• GemStone: Revolutionary high-dimensional flow, spectral, and mass cytometry data analysis software based on patented Probability State Modeling technology.
• ModFit LT
• WinList
• V-Comp

Products and services

• GemStone High-dimensional cytometry data analysis software using patented Probability State Modeling technology for objective, automated, and reproducible analysis of flow, spectral, and mass cytometry data without traditional gating. Targets research and clinical laboratories performing advanced multi-color analysis.
• WinList Gate-based cytometry analysis software with Cen-se' and t-SNE dimensionality reduction, sticky/contour regions, N-Color Compensation, and comprehensive reporting for flow cytometry data analysis. For clinical and research laboratories performing routine and high-dimensional flow cytometry.
• ModFit LT Industry-standard DNA cell-cycle analysis and proliferation studies software with automatic and manual analysis modes, cell tracking wizard, synchronization wizard, and batch processing for cytometry data. Targets research laboratories performing DNA ploidy and proliferation studies.
• V-Comp Fully-automated fluorescence compensation utility using wizard-driven setup and drag-drop processing to calculate accurate compensation matrices without gating, supporting Research and Compliance (21 CFR Part 11) modes. For clinical and research laboratories performing multi-color flow cytometry.
• WinList Reader Free reader software that allows users to view and share WinList analysis protocols and reports without purchasing a full WinList license.
• GemStone Reader Free reader software enabling sharing of GemStone analysis projects with collaborators who do not have a GemStone license.

Quantifiable outcome

• Different users at different sites get the same results
• +1 more outcomes

Named customers12 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration8 records

AI capability6 records

Feature4 records

Scale indicators2 records

Expansion highlights5 records

Direct peers

• FlowJo (BD Biosciences): The dominant flow cytometry analysis platform, now owned by BD Biosciences. Competes head-to-head with WinList and ModFit LT across research and clinical flow analysis.
• De Novo Software (FCS Express): Provides FCS Express, a flow and image cytometry analysis suite with 21 CFR Part 11 compliance. Closest direct competitor in clinical flow cytometry analysis alongside WinList.
• FlowLogic: Flow cytometry analysis software focused on clinical and research labs, offering gating, compensation, and reporting tools that directly overlap with WinList's feature set.

Broad incumbents

• Beckman Coulter Life Sciences (Cytobank, Kaluza): Large instrument vendor that owns Cytobank (cloud high-dimensional analysis) and Kaluza (desktop flow analysis). Overlaps with Verity's GemStone and WinList as a vertically integrated competitor.
• Cytek Biosciences (SpectroFlo): Spectral cytometry instrument vendor whose SpectroFlo software is bundled with its instruments. A partner-cum-competitor whose file formats Verity supports but whose bundled analysis could pressure third-party demand.
• Standard Bio Tools (CyTOF/IDEAS): Mass cytometry (CyTOF) instrument vendor whose IDEAS software is the standard for Helios/CyTOF data. Verity already supports Standard Bio file formats, positioning it as both partner and competitor in mass cytometry analysis.

Emerging players

• OMIQ: Cloud-native flow and mass cytometry analysis platform with AI-driven clustering. Represents the next-generation approach to cytometry analysis that Verity's desktop products compete against.
• CellProfiler (Broad Institute): Open-source image-based cytometry and cell analysis software from the Broad Institute. While primarily image-focused, it overlaps with cell-cycle and proliferation analyses served by ModFit LT.

Regional players

• Partek (Illumina): Genomics and single-cell analysis software now under Illumina. Overlaps at the multi-omics analysis layer for cytometry-adjacent single-cell workflows, expanding the competitive surface for high-dimensional analysis.

Others

• Qognit / BioLegend (cell analysis reagents + analysis tools): Major flow cytometry reagent supplier under the same Revvity parent that also touches the analysis ecosystem. Adjacent ecosystem participant whose customer relationships partially overlap with Verity's flow lab customers.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UC9bZOi_aBmTx00j1H_Pjw8w
• LinkedInlinkedin.com/company/verity-software-house

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

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 Verity Software House