Mackworth Group

What Mackworth Group does

Mackworth Group LLC, operating as Mackworth-Enviro, is a Clinton, Connecticut-headquartered environmental engineering and construction firm founded in 2011 that specializes in Bottom-Sealing Filter Barrier (BSFB) technology for aquatic environments. The firm's core product is a full-depth geotextile curtain that seals to the bed of a water body to provide 100% water column filtration in tidal and flowing conditions, materially outperforming standard Type I, II, and III floating turbidity curtains. BSFB systems can withstand flows up to 6 feet per second and have been deployed at scales including a 1,500-foot by 60-foot deep installation in the Hudson River.

The company sells and delivers through both engineered products and integrated services. Product variants address contaminated dredge containment, sediment retention in mine water treatment ponds, nutrient and phosphorus reduction, fish exclusion at power plant intakes, beach bacteria control, water intake protection, and construction/demolition turbidity control. Services span engineering design and regulatory consulting, specification development, custom fabrication, installation and removal, monitoring and compliance, and commercial diving via the Mackworth Subsea division. Pricing is quote-based and not publicly disclosed; the firm also offers a fixed-fee Conceptual Design Package that can roll into total project costs.

Mackworth serves enterprise engineering primes (Jacobs, AECOM), utilities (ConEdison, FPL, NRG, Eversource), federal and state agencies (US Army Corps of Engineers, US Air Force, Caltrans, NY DEC), and infrastructure contractors (JF Brennan, Weeks Marine) across the Northeast, West Coast, Southeast, Midwest, and Northwest US. The firm is a Service-Disabled Veteran-Owned Small Business, owned and operated since 2023 by US Navy veteran Christian Guelke, with 1-10 employees.

Name

Mackworth Group

Legal name

Mackworth Group LLC

Website

https://mackworth-enviro.com

Company type

Private

Founded year

2011

Operating status

Operating

Headcount range

1–10 employees

Short description

Mackworth Group (Mackworth-Enviro) is a veteran-owned environmental engineering firm that designs, fabricates, and installs proprietary Bottom-Sealing Filter Barrier systems for environmental remediation, contaminated sediment containment, nutrient reduction, and aquatic life exclusion, serving utilities, engineering primes, and government agencies across the US.

Ownership category

akta.pro rank

Product category

Environmental Remediation Engineering Services

NAICS

Rubber and Plastics Hoses and Belting Manufacturing (326220)

SIC

Unsupported Plastics Film & Sheet (3081)

akta.pro primary industry

Pollution Control & Environmental Remediation (Booming, Skimming, Shoreline Cleanup) (TLAHAIAH)

akta.pro secondary industries

Subsea & Nearshore Civil Works (Trenching, Rock Placement, Mattressing) (IMAFAJAI), Ballast Water, Bilge & Wastewater Treatment Systems (Environmental/Utility) (IMAJAIAJ)

Keywords

• Aquatic filter barriers
• Environmental remediation services
• Turbidity control systems
• Contaminated sediment containment
• Fish exclusion barriers

Headquarters

HQ city

Clinton

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Design and Regulatory Consulting: Consulting services for project planning and execution phases, providing site-specific engineered solutions from evaluation and conceptual design to turnkey installation.
2. Fabrication Services: Custom fabrication of filter barriers using the right materials carefully selected and customized for optimal performance, paired with proprietary fabrication techniques for long-term deployments.
3. Installation, Operations, and Removal: Expert services for installation, operation, maintenance, and removal of aquatic filter barrier systems with various levels of support tailored to specific needs.
4. Monitoring, Maintenance, and Compliance Services: Operational compliance plans addressing maintenance, reporting, response protocols and ongoing support.
5. Conceptual Design Package: Concept drawings and ballpark cost estimates for engineering, fabrication, installation, maintenance, repairs and replacement provided for a fixed fee or rolled into total project costs.
6. Commercial Diving Services: Full commercial diving services for barrier installation and maintenance in challenging aquatic environments.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

Mackworth Group, operating primarily through its Mackworth-Enviro division, designs, engineers, fabricates, and installs Bottom-Sealing Filter Barrier (BSFB) systems for aquatic environmental applications. Their product portfolio includes specialized barrier variants for contaminated dredge containment, sediment retention, nutrient reduction, fish exclusion, beach protection, water intake protection, and demolition turbidity control. The company also provides comprehensive services including engineering design, regulatory consulting, specification development, custom fabrication, installation/operations/removal, monitoring/maintenance/compliance, and commercial diving via its Mackworth Subsea unit.

Product overview

Mackworth Group operates primarily through its Mackworth-Enviro division, offering a portfolio of aquatic barrier solutions centered on Bottom-Sealing Filter Barriers (BSFB) technology. The core BSFB product provides full water column filtration that seals to the bottom for 100% containment in tidal and flowing environments, outperforming standard Type I, II, and III floating turbidity curtains. The product line includes specialized variants for sediment retention, nutrient reduction, fish exclusion, contaminated dredge containment, beach protection, and water intake protection. These barriers are complemented by a full suite of services spanning engineering design and regulatory consulting, specification development, custom fabrication, installation/operations/removal, and monitoring/maintenance/compliance support. Mackworth Subsea provides specialized commercial diving services for barrier installation and maintenance in challenging conditions. The company emphasizes proprietary composite filter material technology and offers both standard products and site-specific engineered solutions.

Differentiator

Problem solved

Functional benefit

Products and services

• Bottom-Sealing Filter Barriers (BSFB) Full water column aquatic filter barriers that seal to the bottom to provide 100% filtration in tidal and flowing environments, designed for durability in dynamic conditions such as rivers and tidal zones. Unlike standard Type I, II, or III floating turbidity curtains, BSFBs provide full water column coverage.
• Full-Depth Sediment Retention Barrier Bottom Sealing Filter Barrier technology adapted to span the full water column to the sediment interface, limiting fine sediment transport and promoting effective settling under variable flow conditions for mine water treatment ponds.
• Nutrient Reduction Barriers Full-depth filter barriers designed to control suspended sediments and excess nutrients from entering water bodies, preventing harmful algal blooms and water quality degradation from agricultural runoff.
• Fish Exclusion Barriers Marine Life Exclusion Systems that mitigate entrainment of fish eggs and larvae and prevent passage of adult fish and other marine animals through full water column barriers. Designed for compliance with Clean Water Act Section 316(b).
• Enclosed Turbidity Control Curtain (ETCC) Specialized turbidity control curtain designed for bridge demolition and construction projects in channels and waterways, providing enclosed sediment and debris containment during in-water work.
• Tri-Barrier System Multi-barrier system combining a diversion barrier, bottom-sealed filter barrier, and outer silt curtain for comprehensive turbidity and sediment control in challenging environments such as the Everglades tidal habitat.
• Water Intake Protection Barrier (WIPB) Aquatic barrier systems designed to protect water intakes from sedimentation and exclude aquatic life to meet Section 316(b) regulatory criteria at industrial and power generation facilities.
• Beach Protection Barriers
• Contaminated Dredge Containment Systems Bottom-sealing filter barriers specifically designed for contaminated sediment control in tidal waters, maintaining bottom seal regardless of flow direction and preventing contaminant migration during dredging operations.
• Mackworth Subsea Commercial Diving Services Full commercial diving services with over 25 years of experience, specializing in installation and maintenance of bottom-sealing filter barriers in high-flow conditions and challenging aquatic environments.
• Engineering Design and Regulatory Consulting Expert consultation services for project planning, involving early engagement to benefit projects through full duration with engineering design, site-specific engineered solutions, and regulatory expertise from evaluation and conceptual design through turnkey installation.
• Specification Development Site-specific specification development services ensuring project goals are met with customized requirements rather than recycled specifications.
• Fabrication Services Custom fabrication of filter barriers using proprietary techniques and carefully selected materials for robust, durable, long-term deployments.
• Installation, Operations, and Removal Expert installation, operational support, and removal services backed by experienced professionals for turnkey project solutions, with various levels of support tailored to specific project needs.
• Monitoring, Maintenance, and Compliance Operational compliance plans addressing maintenance, reporting, response protocols, and ongoing support with a focus on achieving measurable regulatory results.
• Conceptual Design Package Concept design services including concept drawings and ballpark cost estimates and schedule for engineering, fabrication, installation, maintenance, repairs, and replacement. Provided for a fixed fee or rolled into total project costs.

Quantifiable outcome

• 100% water column containment maintained through all tidal, flow, and weather conditions for 23 months in Hudson River project
• +5 more outcomes

Named customers17 records

Segments7 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

21 partnerships are on record, tiered core, major and minor.

• AECOMcoreStrategic or Co-development PartnerMajor engineering and infrastructure firm that partners with Mackworth-Enviro on environmental remediation and marine projects requiring aquatic barrier solutions.
• US Army Corps of EngineerscoreStrategic or Co-development PartnerFederal engineering agency that collaborates on water resource and environmental remediation projects requiring specialized barrier technology.
• Jacobs EngineeringcoreStrategic or Co-development PartnerMajor engineering firm engaged with Mackworth-Enviro for remediation programs including mine water treatment projects in Northern California.
• EA EngineerscoreImplementation/ SI/ Consulting PartnerEnvironmental engineering and consulting firm that works with Mackworth on remediation projects.
• JF BrennancoreImplementation/ SI/ Consulting PartnerMarine construction and environmental remediation contractor that partners on aquatic barrier installation projects.
• Weeks MarinecoreImplementation/ SI/ Consulting PartnerMarine construction contractor engaged on dredging and environmental projects requiring filter barriers.
• ConEdisonmajorStrategic or Co-development PartnerMajor utility company with infrastructure projects requiring environmental compliance solutions including aquatic barriers.
• CaltransmajorStrategic or Co-development PartnerCalifornia Department of Transportation working on infrastructure projects requiring turbidity and sediment control solutions.
• New York Department of Environmental ConservationcoreStrategic or Co-development PartnerState environmental agency collaborating on remediation and water quality projects in New York waters.
• University of South FloridaminorStrategic or Co-development PartnerAcademic institution partnered on research and development initiatives related to aquatic barrier technology.
• Central HudsonminorStrategic or Co-development PartnerRegional utility company with infrastructure requiring environmental compliance solutions.
• Sevenson EnvironmentalcoreImplementation/ SI/ Consulting PartnerEnvironmental remediation contractor specializing in MGP site cleanup and contaminated sediment removal.
• PND EngineersminorImplementation/ SI/ Consulting PartnerEngineering firm providing marine and coastal engineering solutions in partnership with Mackworth.
• BPmajorStrategic or Co-development PartnerMajor energy company with environmental remediation projects requiring specialized barrier technology.
• Florida Power and LightmajorStrategic or Co-development PartnerMajor utility company with power generation facilities requiring marine life exclusion and water intake protection.
• NRGmajorStrategic or Co-development PartnerEnergy company with power plant operations requiring aquatic barrier solutions for environmental compliance.
• EversourceminorStrategic or Co-development PartnerRegional utility company in New England with infrastructure projects requiring environmental solutions.
• US Air ForceminorStrategic or Co-development PartnerMilitary branch with facilities requiring environmental compliance and remediation solutions.
• Maine Technology GrantminorStrategic or Co-development PartnerState program providing funding support for technology development in Maine businesses.
• StantechminorImplementation/ SI/ Consulting PartnerEngineering and technical services firm working on environmental projects.
• UnitilminorStrategic or Co-development PartnerRegional utility company with infrastructure requiring environmental compliance solutions.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Sevenson Environmental Services: Environmental remediation contractor specializing in MGP site cleanup and contaminated sediment removal. Comparable end-market exposure to Mackworth and an existing channel partner; overlaps where Sevenson acts as both customer and competitor.
• Elastec / American Marine: Manufactures turbidity curtains, oil spill containment booms, and aquatic environmental equipment. Directly comparable to Mackworth's BSFB product line, with a broader product catalog across surface booms and silt curtains.
• GEI Works: Supplies turbidity curtains, silt barriers, and floating baffles for construction and environmental applications. Closely comparable to Mackworth in product type (water-borne containment curtains) and customer base (marine construction contractors).

Broad incumbents

• Clean Harbors: Large publicly traded environmental and industrial services provider with broad remediation, dredging, and emergency response capabilities. Broader incumbent offering overlapping with Mackworth's environmental remediation scope.
• Stantec (Environmental Services): Global engineering and environmental consulting firm with a large water and environmental remediation practice. Comparable end-market exposure and a potential integrator/specifier of Mackworth-style BSFB solutions on major programs.
• Solmax (geosynthetics): Global manufacturer of geosynthetics used in environmental, civil, and marine containment applications. Comparable in raw material domain (geotextiles/composites) and could be a competitive threat if it expands into bottom-sealing systems.

Regional players

• JF Brennan: Marine construction and environmental remediation contractor working on dredging and aquatic barrier installation projects. Comparable marine project profile to Mackworth and an existing implementation partner.
• Weeks Marine: Marine construction contractor with heavy dredging and coastal infrastructure practice. Comparable in operating environment to Mackworth and partners with Mackworth on barrier installations.

Emerging players

• AquaBlok: Manufactures sediment remediation products including weighted containment materials for capping contaminated sediments in water bodies. Adjacent product set to Mackworth's BSFB technology, focused on in-water sediment isolation.
• Cascade Environmental Group: Environmental services firm focused on sediment remediation, dredging, and aquatic restoration. Comparable niche focus to Mackworth and similar scale profile.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/mackworth-aquatic-environmental-systems
• Facebookfacebook.com/MackworthEnviro

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 Mackworth Group