Rypos
Rypos Inc. manufactures patented, electrically self-regenerating active diesel particulate filter systems for backup power, transport refrigeration, marine, port, and OEM diesel applications, reducing particulate emissions by up to 95% and meeting CARB, EPA, and regional AQMD standards.
- Company typePrivate
- Founded1997
- HeadquartersHolliston, United States
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What Rypos does
Rypos Inc. is a Franklin, Massachusetts-based manufacturer of active diesel particulate filter (DPF) systems, founded in 1997 to commercialize patented electrically self-regenerating filtration technology. The company's core product uses an electrically conductive sintered metal fiber medium that captures diesel particulate matter and is regenerated by applying controlled electrical current to heat the element to approximately 700°C, incinerating trapped soot. This active approach operates independently of exhaust temperature, enabling regeneration at low loads, idle, and cold-start conditions where passive filters clog. The product portfolio spans five lines covering applications from 50 kW marine gensets to 1 MW+ utility generators: ADPF (large gensets), RH-DPF (compact-footprint), Custom DPF (OEM), ULETRU DPF (transport refrigeration units), and a Tier 4-integrated DPF + SCR solution for full emissions compliance.
The company sells primarily to enterprise customers in five verticals: backup power generation (data centers, hospitals, utilities, universities), transport refrigeration units, marine, port operations, and custom/OEM applications. Sales occur through direct enterprise field engagement supplemented by a nationwide network of authorized TRU dealers and distributor relationships with major engine OEMs, notably Pacific Power Group (MTU Onsite Energy) and Milton CAT. DPF systems are priced in the $25,000–$100,000+ range depending on size and configuration, with installation, commissioning, and aftermarket parts and service providing ancillary revenue.
Rypos has achieved regulatory verification across multiple jurisdictions including CARB Level 3+ (Executive Order DE-07-001-08), EPA Tier 4-Final, BAAQMD, SCAQMD, MassDEP, DEQ, NFPA 110, and MSHA for underground mining. The company holds patented active self-regeneration technology and is the only manufacturer capable of shipping a complete CARB 3+ compliant ULETRU solution directly from the factory. With approximately 1,300+ cumulative installations and verified emissions reductions of up to 95% particulate matter, the company operates with a small team (11–50 employees) and is led by CEO Paul Anderson.
Rypos firmographics
Firmographics- Name
- Rypos
- Legal name
- Rypos Inc.
- Website
- https://rypos.com
- Company type
- Private
- Founded year
- 1997
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Rypos Inc. manufactures patented, electrically self-regenerating active diesel particulate filter systems for backup power, transport refrigeration, marine, port, and OEM diesel applications, reducing particulate emissions by up to 95% and meeting CARB, EPA, and regional AQMD standards.
- Ownership category
- akta.pro rank
Rypos industry classification
Industry- Product category
- Diesel Particulate Filter Systems / Emissions Control Equipment
- NAICS
- Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413)
- SIC
- Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564)
- akta.pro primary industry
- Emission Control & Scrubbing Equipment (Scrubbers, Dust Collectors, Catalytic Systems) (IMAHAEAK)
- akta.pro secondary industries
- Air Quality & Filtration Equipment (IAQ) (IMAHAKAI), Exhaust Aftertreatment Diagnostics (DPF/SCR/DEF) & Compliance Testing (TLAKANAI), Emissions Controls & Environmental Retrofit Services (SCR/FGD/ESP, CEMS) (EUAEALAL)
Keywords
Where Rypos is headquartered
LocationHeadquarters
- HQ city
- Holliston
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Rypos business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Technology or R&D, Personnel, Operations, Marketing or Sales
Revenue model
- Active DPF Hardware Sales: Rypos sells active diesel particulate filter systems as engineered products. Products include ADPF (for 1 MW+ diesel gensets), RH-DPF (50-900 kW compact footprint), ULETRU DPF (for transport refrigeration units), Custom DPF (for OEM applications), and Tier 4 integrated DPF+SCR systems. Pricing for retrofit applications typically ranges from $25,000 to $100,000+ depending on generator size, exhaust configuration, and system complexity. Installation requires contractors under direction of authorized partners.
- Installation and Commissioning Services: Rypos provides professional installation support, final commissioning, and service packages to ensure optimal performance. Field service technicians inspect mechanical and electrical connections and witness complete regeneration cycles during commissioning. Service is available through direct requests and authorized dealer networks.
- Aftermarket Parts and Maintenance: Rypos offers ongoing maintenance, troubleshooting, and aftermarket parts through a nationwide distributor network. Visual inspections are recommended every 1,000 operating hours. Replacement filter cartridges and components available through authorized TRU dealers.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| One time/ perpetual license | Pay-as-you-go | Small footprint gensets (50–300 kW) |
| One time/ perpetual license | Pay-as-you-go | Mid-size gensets (300–1,000 kW) |
| One time/ perpetual license | Pay-as-you-go | Large gensets (1 MW+) |
| One time/ perpetual license | Pay-as-you-go | ULETRU DPF for TRUs |
Go-to-market motion2 records
Distribution channels4 records
Marketing channels7 records
Rypos product offering
Product offeringCore offering
Rypos manufactures active diesel particulate filter (DPF) systems that use electrically conductive sintered metal fiber filter media to capture diesel particulate matter and regenerate the filter by applying a controlled electric current that incinerates trapped soot at approximately 700°C. The systems include ADPF, RH-DPF Series, Custom DPF, ULETRU DPF for transport refrigeration units, and integrated Tier 4 DPF + SCR solutions, sold primarily to data centers, hospitals, utilities, universities, marine operators, port facilities, and cold-chain fleet operators for emissions compliance.
Product overview
Rypos offers a family of active diesel particulate filter (DPF) systems built on patented electrically self-regenerating technology using sintered metal fiber filter medium. The product portfolio spans five distinct lines: (1) ADPF — for large diesel gensets rated 1 MW and above, with optional Tier IV SCR integration for combined NOx and PM reduction; (2) RH-DPF Series — compact footprint variants for space-constrained applications (50–900 kW), including marine, ports, and mining; (3) Custom DPF — tailor-engineered solutions for OEM and specialty applications (50 kW+); (4) ULETRU DPF — the only manufacturer-produced ULETRU filter for transport refrigeration units, compatible with Thermo King and Carrier TRUs; and (5) Tier 4 DPF + SCR — integrated after-treatment combining active DPF with SCR for full Tier 4 emissions compliance. All systems feature active electric regeneration that operates independently of exhaust temperature, CARB Level 3+ verification, and EPA Tier 4 compliance.
Differentiator
Problem solved
Functional benefit
Products and services
- ADPF (Active Diesel Particulate Filter) Active DPF system for 1 MW and above diesel gensets, featuring electrically regenerated sintered metal fiber filter technology that removes up to 95% of diesel particulate matter. Available in Tier IV configurations with integrated SCR for combined NOx and PM reduction, with critical- or hospital-grade sound attenuation. For data center, hospital, utility, and large industrial backup power operators.
- RH-DPF Series Compact active DPF series designed for close-quarters applications such as marine power generation, gantry cranes, ports, and mining, where space is restricted. Supports 50-900 kW diesel engines or gensets, reduces PM up to 95%, hydrocarbons up to 77%, CO up to 94%, and NO2 up to 96%. Features cylindrical compact design with critical- or hospital-grade sound attenuation, and is CARB 3+ verified and Tier IV Final EPA compliant.
- Custom DPF Custom-engineered diesel emission control systems for OEM and aftermarket customers with non-standard diesel engine applications. Built for 50 kW and above diesel engines and gensets, featuring intelligent controls, scalable configurations, and engineering support. Achieves up to 95% particulate matter reduction and is used across mining, entertainment, manufacturing, power rental, and other specialty industries.
- ULETRU DPF Rypos Ultra Low Emissions DPF for Transport Refrigeration Units (TRUs) - the only ULETRU DPF manufacturer for TRUs. Uses an electrically conductive sintered metal fiber medium that regenerates using electrical power from the TRU. Reduces PM up to 95%, hydrocarbons up to 77%, CO up to 94%, and NO2 up to 96%. Compatible with Thermo King and Carrier refrigeration units, including the newly supported Carrier Vector platform. CARB 3+ verified and Tier IV EPA compliant. Installs in approximately 4 hours, backed by a 4-year warranty.
- Tier 4 DPF + SCR System Integrated DPF with Selective Catalytic Reduction (SCR) system solution for EPA Tier 4 compliance, addressing NOx, PM, and gaseous emissions in a single engineered package. Available in integrated or separate component housings for new installations and retrofits. Reduces NOx, PM, CO, VOC, and NO2. Features integrated diesel oxidation catalyst (DOC) and low-profile housing with sound attenuation up to Super Critical Grade.
Companies that use Rypos
Customer profileNamed customers10 records
Segments5 records
Ideal customer profiles4 records
Rypos technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
AI capability1 record
Feature6 records
Rypos partnerships and signals
Strategic signalPartnerships
Five partnerships are on record, tiered supporting and core.
- GeoInsightsupportingGeoInsight, a Littleton, MA environmental consulting firm, conducted comprehensive air emissions surveys for Boston College to identify non-compliant generators and developed a compliance plan. The firm recommended Rypos active DPFs as the best achievable control technology and negotiated the compliance timetable with Massachusetts DEP.
- Pacific Power GroupcorePacific Power Group, headquartered in Ridgefield, WA, is an authorized MTU Onsite Energy distributor and service provider for all generator brands. PPG collaborated with Rypos to size, specify, and oversee the installation of 25 DPFs on MTU S4000 engines at a West Coast data center. PPG's technicians performed the installation over six months.
- Milton CATcoreMilton CAT is an authorized Caterpillar dealer that coordinated Rypos DPF installation and oversaw contractors for Boston College's generator compliance project. Milton CAT serves as a premium supplier partner in the installation and commissioning of Rypos DPFs on CAT diesel engines.
- 4G Management Inc.core4G Management develops advanced emission capture and control systems mounted on barges for cleaner port operations. The company has installed 9+ Rypos RH-DPF filters across multiple barge projects and has committed to installing Rypos technology on every barge and dock-based system they build. 4G plans to scale to 50+ barges on the West Coast.
- Philly Shipyardsupporting4G Management has secured agreements with East Coast shipyards including Philly Shipyard to accelerate production of emission-controlled barges equipped with Rypos DPFs.
Scale indicators10 records
Recent moves6 records
Expansion highlights6 records
Rypos competitors and assessment
Company assessmentBroad incumbents
- Donaldson Company: Large diversified filtration manufacturer with a significant diesel emissions control portfolio (Donaldson Emission Solutions). Comparable as a broad incumbent in diesel particulate and exhaust filtration serving OEMs, genset operators, and aftermarket channels, though Rypos specializes in active electric regeneration rather than passive filtration.
- Purem by Eberspächer: Global automotive exhaust and emissions control supplier with diesel aftertreatment for commercial vehicles, off-road, and stationary applications. Comparable as a broad incumbent with overlapping DPF/SCR product lines serving OEMs and regulated end markets.
- Johnson Matthey: Global specialty chemicals and advanced materials company with a major stationary emissions control business (now part of Honeywell) producing SCR catalysts and DPF substrates. Comparable as a broad incumbent in diesel aftertreatment chemistry and components.
- MANN+HUMMEL: Global filtration company with industrial and automotive filtration including diesel particulate and exhaust-related products. Comparable as a broad incumbent with deep channel reach in industrial air and emissions filtration.
- Bosch Mobility (Emissions Systems): Major automotive and industrial supplier of diesel aftertreatment systems (DPFs, SCR, sensors, control units) for commercial vehicles, off-road, and stationary engines. Comparable as a broad incumbent with comprehensive emissions product portfolio and global OEM relationships.
Direct peers
- Nett Technologies: Canada-based manufacturer of diesel oxidation catalysts, DPFs, and SCR systems for engines, gensets, and marine applications. Most direct competitor in active/passive diesel aftertreatment for industrial and standby power markets, with overlapping CARB/EPA-verified product lines.
- DCL International: Manufacturer of catalytic emissions control products (oxidation catalysts, DPFs, SCR) for diesel engines across genset, marine, mining, and OEM applications. Closely comparable niche competitor focused on certified diesel aftertreatment solutions.
- HUG Engineering: Swiss-headquartered specialist in diesel and gas engine exhaust aftertreatment (DPF, SCR, oxidation catalysts) for rail, marine, power generation, and industrial applications. Closely comparable niche competitor with overlapping CARB and marine genset programs.
- Clean Diesel Technologies (CDTi): Provider of advanced emissions control solutions including DPFs and catalysts for diesel and gasoline applications across heavy-duty, stationary, and off-road markets. Comparable small-cap peer focused on verified aftertreatment platforms.
Others
- Corning Incorporated: Manufacturer of advanced ceramic substrates used in diesel particulate filters and catalytic converters supplied to emissions system integrators. Comparable as an enabling supplier of DPF filtration media rather than a direct competitor in finished systems.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat3 records
Key risks7 records
Key highlights7 records
Customer concentration
Rypos social profiles
Digital presenceRypos compliance and trust
Trust signalCompliance6 records
Rypos financial estimates
Financial estimateRevenue estimate
Valuation estimate
Rypos leadership team
Management profileNumber of profiles
Profiles6 records
Rypos funding detail
Funding detailFunding overview
Funding rounds4 records
Investors2 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Rypos 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 Rypos
What does Rypos do?
Rypos manufactures active diesel particulate filter (DPF) systems that use electrically conductive sintered metal fiber filter media to capture diesel particulate matter and regenerate the filter by applying a controlled electric current that incinerates trapped soot at approximately 700°C. The systems include ADPF, RH-DPF Series, Custom DPF, ULETRU DPF for transport refrigeration units, and integrated Tier 4 DPF + SCR solutions, sold primarily to data centers, hospitals, utilities, universities, marine operators, port facilities, and cold-chain fleet operators for emissions compliance.
Is Rypos a public or private company?
Rypos is a private company. It is classified as management employee owned and is currently operating.
When was Rypos founded?
Rypos was founded in 1997. It employs 11 to 50 people.
Where is Rypos based?
Rypos is headquartered in Holliston, United States, in the North America region.
How does Rypos make money?
Three revenue lines are on record. Active DPF Hardware Sales are the primary driver. The others are installation and Commissioning Services and aftermarket Parts and Maintenance.
Who are Rypos's main competitors?
Broad incumbents on record are Donaldson Company, Purem by Eberspächer, Johnson Matthey, MANN+HUMMEL and Bosch Mobility (Emissions Systems). Direct peers are Nett Technologies, DCL International, HUG Engineering and Clean Diesel Technologies (CDTi). Corning Incorporated is listed as an others.
Does Rypos have an API?
No public API is recorded for Rypos.
What industry is Rypos in?
Rypos's product category is Diesel Particulate Filter Systems / Emissions Control Equipment. Its primary akta.pro industry code is IMAHAEAK, Emission Control & Scrubbing Equipment (Scrubbers, Dust Collectors, Catalytic Systems), with a secondary code of IMAHAKAI, Air Quality & Filtration Equipment (IAQ). Its NAICS code is 333413 and its SIC code is 3564.