D/2 Biological Solutions

What D/2 Biological Solutions does

D/2 Biological Solutions, Inc. is a privately held specialty chemical company headquartered in Westport, Massachusetts, that develops and distributes a single proprietary product - D/2 Biological Solution - a nearly pH-neutral (pH 9.2) quaternary ammonium cleaning solution with surfactants, formulated without acids, salts, or bleach, designed to remove biological growth (mold, algae, mildew, lichens) and air pollutant staining from building materials including masonry, marble, granite, limestone, wood, and various siding and roofing substrates. The product works through a 15-minute contact time and is sold in packaging from 1 quart to 55 gallon drums, positioning it for both small residential and large-scale industrial and government projects.

The company monetizes exclusively through wholesale sales to a network of authorized distributors across the United States (18+ regional partners), Canada (4 distributors), the United Kingdom (2 distributors), and the European Union (D/2 Bio Europe, Barcelona). D/2 does not sell through big-box retail, deliberately positioning as a premium, conservator-grade product. Its go-to-market combines institutional and government specification wins (including designation as the National Cemetery Administration's preferred cleaner and inclusion in Presidential Executive Order 13287) with a content-marketing-driven brand presence that emphasizes heritage projects at sites such as the White House, Arlington National Cemetery, the Smithsonian, the U.S. Capitol, Mount Vernon, and Monticello.

The business model is one-time product sales with no disclosed subscription, licensing, or recurring revenue component. The company appears to be founder/management-led (President Ted Kinnari) with no institutional investment disclosed. Customer concentration is highly diversified across more than 100 named institutions spanning federal agencies, state historic commissions, universities, museums, and private estates, with revenue distributed through distributor channels rather than concentrated in any single end account.

Name

D/2 Biological Solutions

Legal name

D/2 Biological Solutions, Inc.

Website

https://d2bio.com

Company type

Private

Operating status

Operating

Short description

D/2 Biological Solutions is a privately held specialty chemical company that develops and distributes a single quaternary ammonium cleaning solution for removing biological growth and air pollutant staining from building materials, sold exclusively through authorized distributors to conservators, government agencies, historic preservation organizations, universities, and museums across North America and Europe.

Ownership category

akta.pro rank

Product category

Historic Building Restoration Cleaners

NAICS

Soap and Cleaning Compound Manufacturing (32561), Polish and Other Sanitation Good Manufacturing (325612), Chemical and Allied Products Merchant Wholesalers (4246)

SIC

Specialty Cleaning, Polishing And Sanitation Preparations (2842), Chemicals & Allied Products (2800)

akta.pro primary industry

Mold, Mildew & Algae Removers (CRAJAKAK)

akta.pro secondary industries

Outdoor Hard Surface Cleaners (Patio/Deck/Siding) (CRAJACAJ), Biocides & Disinfection Chemicals (Non-Agricultural) (IMAEAJAL), Cleaning Chemicals & Disinfectants Distribution (CRAOAGAB)

Keywords

• Biological stain remover
• Historic preservation cleaner
• Masonry cleaning solution
• Quaternary ammonium cleaner
• Monument restoration product

Headquarters

HQ city

Westport

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Marketing or Sales, Personnel

Revenue model

1. Product Sales through Distributors: D/2 generates revenue through the sale of its biological cleaning solution via an exclusive network of authorized distributors. Products are sold in various container sizes from 1 quart to 55 gallon drums. The company does not sell direct to consumers or through big-box retail.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

D/2 Biological Solutions develops and sells a proprietary, biodegradable, nearly pH-neutral quaternary ammonium cleaning solution with surfactants designed to remove biological stains (mold, algae, mildew, lichens) and air pollutant staining from building materials. The product is offered in 1 quart, 1 gallon, 5 gallon, and 55 gallon packaging and is applied undiluted to masonry, marble, granite, limestone, brownstone, travertine, terra cotta, concrete, stucco, wood, canvas, and vinyl/aluminum siding with a 15-minute contact time. Distribution is handled exclusively through a network of authorized regional distributors in the US, Canada, UK, and EU, with direct institutional outreach to government agencies, museums, universities, and historic preservation organizations.

Product overview

D/2 Biological Solutions offers a single unified product: D/2 Biological Solution. It is a proprietary quaternary ammonium-based cleaning formula with surfactants that comes in multiple packaging sizes (1 quart, 1 gallon, 5 gallon, and 55 gallon drums) to serve both residential and large-scale commercial projects. The product is applied undiluted for best results and works through a 15-minute contact time followed by optional scrubbing. The solution is biodegradable, pH 9.2, has a shelf life of 5+ years, and is trusted by major institutions including the National Park Service, U.S. Capitol, and Smithsonian for cleaning monuments, headstones, and historic building facades.

Differentiator

Problem solved

Functional benefit

Products and services

• D/2 Biological Solution A biodegradable, nearly pH-neutral (pH 9.2) quaternary ammonium cleaning solution with surfactants, sold in 1 quart, 1 gallon, 5 gallon, and 55 gallon packaging, formulated to remove biological and air pollutant staining from masonry, marble, granite, limestone, brownstone, travertine, terra cotta, concrete, stucco, wood, canvas, vinyl, and aluminum siding with a 15-minute contact time. Used by government agencies, museums, universities, historic preservation organizations, and professional contractors.

Quantifiable outcome

• Covers 200-400 square feet per gallon for medium stain removal
• +4 more outcomes

Named customers19 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• National Park ServicecoreStrategic or Co-development Partner · 23 April 2022NPS partnered with D/2 for major cleaning projects including Vicksburg National Cemetery (18,000 headstones cleaned on April 23, 2022), Old San Juan city walls, Congressional Cemetery, and ongoing maintenance of the White House.
• Friends of VicksburgminorStrategic or Co-development Partner · 23 April 2022Collaborated with D/2, NPS, and NCPTT on the massive volunteer effort to clean 18,000 veteran headstones at Vicksburg National Cemetery on April 23, 2022.
• National Cemetery AdministrationcoreStrategic or Co-development Partner · 1 January 2011NCA partnered with NCPTT and NPS to evaluate marble cleaners in a 3-phase study (2004-2011) to minimize damage to historic headstones. Based on findings, NCA selected D/2 as the preferred cleaner for federally-issued headstones. This partnership led to D/2 being mentioned in Presidential Executive Order 13287.
• National Center for Preservation Technology and Training (NCPTT)coreStrategic or Co-development PartnerNCPTT conducted the comparative study of commercially available cleaners for federally-issued headstones (2004-2011). Their research validated D/2's effectiveness and led to its adoption by National Cemetery Administration.
• HD Supply A.H. HarriscoreChannel Partner/ Reseller/ DistributorPrimary distributor for D/2 in Northeast U.S., Maryland, and Virginia. Multiple locations including Albany, NY and Plainville, MA.
• Cemetery Preservation SupplycoreChannel Partner/ Reseller/ DistributorTexas-based distributor serving Texas and shipping throughout the US. Specializes in gravestone and cemetery preservation supplies.
• D/2 Bio EuropecoreChannel Partner/ Reseller/ DistributorExclusive distributor for UK and EU markets. Barcelona-based operation serving all of European Union. Contact: Carlos Cerro.
• National Trust for Historic PreservationcoreStrategic or Co-development PartnerOwns and operates the Pope-Leighey House (Frank Lloyd Wright design). Uses D/2 for wood preservation at their historic properties.
• Frank Lloyd Wright FoundationcoreStrategic or Co-development PartnerUses D/2 to combat biological growth at Taliesin estate, a shrine to architects.
• Texas Historical CommissioncoreStrategic or Co-development PartnerPartners with Texas Daughters of the American Revolution to preserve historic headstones using D/2.

Scale indicators3 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Prosoco: Prosoco manufactures specialty masonry and architectural surface cleaners, including biocides for removing biological growth on stone, brick, and concrete. It is the closest direct competitor in the building substrate cleaning category D/2 serves.
• Cathedral Stone Products: Cathedral Stone manufactures masonry restoration materials including cleaners and biocide treatments for historic stonework. Targets the same preservation/restoration contractors and institutional buyers as D/2.
• Diedrich Technologies: Diedrich produces restoration cleaning products for masonry, brick, and historic substrates, including biological growth removers used by preservation contractors. Overlaps directly with D/2's professional preservation contractor segment.
• ABR Restoration: ABR Restoration supplies cleaning and restoration products specifically formulated for historic masonry, headstones, and monuments. Closely aligned with D/2's cemetery and monument preservation use cases.

Broad incumbents

• Wet & Forget: Wet & Forget is a consumer- and contractor-grade outdoor cleaning brand for moss, mold, mildew, and algae on siding, roofs, and decks. Competes in the outdoor biological growth removal category but targets broader residential/light commercial rather than preservation-grade substrates.
• Spray & Forget: Spray & Forget manufactures outdoor mold, mildew, and algae removers marketed at homeowners and contractors. Overlaps with D/2's biological stain removal functionality but targets a much broader, less specialized customer base.
• 30 Seconds Cleaners: 30 Seconds Cleaners produces outdoor cleaning products for algae, mold, and mildew on roofs, siding, and walkways. Competes in adjacent residential and light commercial segments but lacks D/2's preservation-grade positioning.

Regional players

• HMK Stone Care: HMK is a UK-based manufacturer of stone care cleaners and biocides for natural stone surfaces. Comparable product category and historic preservation use cases, but serves primarily the UK/European market.
• StoneCare4U: StoneCare4U is a UK-based supplier of stone and masonry cleaning products, including biological growth removers. Similar product positioning but geographically focused on the UK.

Emerging players

• MB Stone Care: MB Stone Care offers specialty cleaners and maintenance products for natural stone, marble, and granite surfaces. Overlaps with D/2's stone substrate cleaning applications, particularly for contractors servicing high-end residential and commercial properties.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/d2bio
• Facebookfacebook.com/D2BiologicalSolution

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 D/2 Biological Solutions