Iq Ingenieurgesellschaft Qadriga Mbh

What Iq Ingenieurgesellschaft Qadriga Mbh does

IQ Ingenieurgesellschaft Quadriga mbH is an independent German civil engineering consulting firm headquartered in Würselen, near Aachen, that delivers integrated subsurface/civil engineering ("Tiefbau") services to public-sector municipalities, private developers, and commercial clients. Founded in 2002 by four equal partners and relocated to its current headquarters in 2008, the firm operates as a qualified planning and consulting office handling projects from initial concept through soil investigation, planning, construction supervision, and final acceptance under a single-source delivery model.

The firm's service portfolio spans nine integrated disciplines: canalization, drainage, and infiltration planning; road, traffic, and open-space planning; structural rehabilitation; SiGe coordination per BauStellV/RAB 30; geotechnical and hydrogeological expert reports; contaminated site assessment and remediation planning; demolition and disposal concepts; construction management and supervision; and surveying. Delivery is supported by a conventional engineering software stack including AutoCAD Map 3D, BricsCAD PRO, Allplan Engineering, VESTRA INFRAVISION STRASSE, Hystem-Extran, BBSoft CivilDesign, the GeoLogik/IDAT/GGU geotechnical suites, plus precision surveying equipment (Trimble S6 Totalstation, Trimble TSC7, Leica NA3003). The team of roughly 30-37 staff comprises civil engineers (Diplom/Master/Bachelor), state-certified building and surveying technicians, Diplom geologists, master geoscientists, drafters, and working students, with four managing directors as of January 2026 following a planned succession.

The business operates on project-based professional services revenue, with engineering consulting engagements quoted on a per-project basis and no publicly disclosed pricing. Distribution is direct — managing directors and project engineers engage municipal works departments, private developers, and commercial clients without intermediaries. Marketing is modest: a corporate website (www.iq-mbh.de), an Instagram account (@iq_mbh), local community sponsorship in the Aachen region, and an active careers portal. The firm holds relevant industry certifications and memberships (DWA, Güteschutz Kanalbau, Ingenieurkammer Bau NRW, BDG, DGGT) and is pre-qualified in the IHK Mittlerer Niederrhein trade register, supporting its eligibility for public-sector tenders. As a privately held GmbH with no external investors, funding rounds, or disclosed financial metrics, the firm functions as a stable regional Mittelstand consultancy rather than a venture-backed scale entity.

Name

Iq Ingenieurgesellschaft Qadriga Mbh

Legal name

IQ Ingenieurgesellschaft Quadriga mbH

Website

https://iq-mbh.de

Company type

Private

Founded year

2002

Operating status

Operating

Headcount range

1–10 employees

Short description

IQ Ingenieurgesellschaft Quadriga mbH is an independent German civil engineering consultancy headquartered in Würselen (near Aachen), delivering integrated drainage, road, geotechnical, structural, and surveying planning services to municipalities, private developers, and commercial clients across the Aachen region and North Rhine-Westphalia.

Ownership category

akta.pro rank

Product category

Civil Engineering Services

NAICS

Engineering Services (54133)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Civil & Structural Engineering Consulting (BPAHAIAA)

akta.pro secondary industry

Geotechnical & Subsurface Engineering Consulting (BPAHAIAB)

Keywords

• Civil engineering services
• Drainage infrastructure planning
• Geotechnical consulting services
• Structural rehabilitation services
• Construction supervision services

Headquarters

HQ city

Würselen

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Consulting Services: Project-based professional services revenue from civil engineering planning, construction management, and supervision for municipal, private, and commercial clients. Services include drainage planning, street and traffic planning, structural rehabilitation, geotechnical assessments, and environmental consulting.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels4 records

Core offering

IQ Ingenieurgesellschaft Quadriga mbH delivers full-service civil engineering consulting from initial subsoil investigation through planning, construction management, and final acceptance. The firm covers canalization, drainage and infiltration planning, road, traffic and open-space planning, structural rehabilitation, SiGe coordination, ground and hydrogeological reports, contaminated site assessments and demolition concepts, on-site construction supervision, and surveying. Services are provided to municipalities, private developers, and commercial enterprises primarily in the Aachen region of North Rhine-Westphalia, Germany.

Product overview

IQ Ingenieurgesellschaft Quadriga mbH is an experienced and independent engineering firm offering comprehensive civil engineering services. The company provides a unified portfolio of nine integrated service areas covering the entire project lifecycle from initial idea through planning, consultation, construction management, and completion. Core services include canalization/drainage/infiltration planning, road/traffic/open-space planning, structural restoration, SiGe coordination, ground/hydro reports, contaminated site assessments, demolition/disposal concepts, construction management/supervision, and surveying. All services are delivered from a single source for public, private, and commercial clients.

Differentiator

Problem solved

Functional benefit

Products and services

• Canalization, Drainage and Infiltration Planning (Kanalisations-, Entwässerungs- und Versickerungsanlagenplanung) Planning of canalization, drainage, and infiltration systems for municipal and private facilities of all sizes, including drainage concepts, property drainage, canalization networks, retention and overflow basins, and infiltration systems with water rights applications. Serves municipalities, private developers, and commercial clients.
• Road, Traffic and Open Space Planning (Straßen-, Verkehrs- und Freianlagenplanung) Planning for municipal and private road construction projects of all sizes, including development of residential, commercial, and industrial areas, city planning, and design of intersections, roundabouts, cycling facilities, parking areas, and public transport stops.
• Structural Rehabilitation (Bauwerksinstandsetzung) Structural restoration services including basic surveys, object planning for engineering structures, gradient calculations, concrete repair with polymer-modified repair mortar, structural verifications for expansion joint anchoring and cap renewal, and bridge construction management.
• SiGe Coordination and Coordination under BGR 128 (SiGe-Koordination und Koordination nach BGR 128) Safety and health protection coordination according to the Construction Site Ordinance (BauStellV) and RAB 30 for planning and execution phases of construction and demolition measures, including preliminary notification, safety plans, and supervision of protective measures.
• Ground and Hydro Reports (Baugrund- und Hydrogutachten) Expert reports on subsoil conditions and hydrogeological relationships including exploration and evaluation of ground conditions, geotechnical calculations, groundwater investigations, and infiltration system design for surface water management.
• Contaminated Site Assessments, Risk Assessments, Demolition and Disposal Concepts (Altlastengutachten, Gefährdungsabschätzungen, Abbruch- und Entsorgungskonzepte) Assessment and remediation planning for contaminated sites including historical research, site inspections, chemical-analytical investigations, risk assessments according to BBodSchV, and preparation of remediation plans in coordination with authorities, plus demolition and waste disposal concepts including inspection of demolition objects, risk assessments, and complete demolition project management.
• Construction Management and Supervision (Bauleitung und Bauüberwachung) On-site construction management and supervision services including construction preparation and award, construction management, local construction supervision, invoice preparation and verification, and billing according to KAG (Municipal Tax Act).
• Surveying (Vermessung) Surveying services including topographic surveys, reflectorless measurements, sewer network documentation, stakeout of canal routes and road elements, terrain modeling, cable location, and photographic documentation.

Named customers3 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Five partnerships are on record, tiered professional affiliation.

• DWA - Deutsche Vereinigung für Wasserwirtschaft, Abwasser und Abfall e.V.professional affiliationOthersProfessional membership organization for water management, wastewater and waste sector. IQ maintains membership for industry standards compliance and professional development.
• Güteschutz Kanalbau - Gütegemeinschaft Herstellung und Instandhaltung von Abwasserleitungen und -kanälen e.V.professional affiliationOthersQuality assurance organization for canal construction and maintenance. IQ maintains membership demonstrating commitment to quality standards in drainage and canal projects.
• Ingenieurkammer Bau NRWprofessional affiliationOthersChamber of Engineers North Rhine-Westphalia. Managing directors Roberto d.P Conego and Klaus Rosenboom are registered consulting engineers (Beratende Ingenieure) with membership numbers 312 028 and 314 100.
• Berufsverband Deutscher Geowissenschaftler e.V. (BDG)professional affiliationOthersProfessional association of German geoscientists. Holger Seeberger is a registered consulting geoscientist (Beratender Geowissenschaftler BDG).
• DGGT - Deutsche Gesellschaft für Geotechnikprofessional affiliationOthersGerman Society for Geotechnics. Professional membership for engineering geology and geotechnical engineering expertise.

Scale indicators3 records

Recent moves5 records

Expansion highlights4 records

Regional players

• Ingenieurgesellschaft Dr.-Ing. Nacken mbH: Independent German engineering consultancy specializing in structural rehabilitation, bridge inspection, and civil engineering services. Comparable to IQ on structural rehabilitation and bridge construction management disciplines.
• Hydro-Ingenieure GmbH: German engineering firm specializing in hydraulic engineering, water management, and drainage/infiltration planning. Closely comparable to IQ's canalization and hydrogeology disciplines.
• Wasser- und Ingenieurgesellschaft Dr. Neumeyer mbH (WIN): German mid-sized engineering firm focused on hydraulic, wastewater, and environmental planning. Closely comparable to IQ's water/wastewater and environmental compliance disciplines at similar regional scale.

Direct peers

• IGS Ingenieurgesellschaft mbH: German independent civil and environmental engineering firm offering water/wastewater, geotechnical, and infrastructure planning services. Directly comparable mid-size German engineering consultancy serving public and private clients.
• Björnsen Beratende Ingenieure GmbH: German independent engineering consultancy headquartered in Koblenz offering civil, structural, environmental, and water-resources engineering. Directly comparable to IQ as a mid-sized German full-service civil engineering office serving municipalities and private developers.
• Dorsch International Consultants GmbH: German-headquartered international engineering consultancy covering infrastructure, water, environment, and project management. Comparable to IQ on engineering disciplines, though operating at much larger scale across Germany and globally.

Broad incumbents

• Sweco GmbH (Germany): Subsidiary of Nordic engineering group Sweco, providing civil, water, environmental, and infrastructure consulting across Germany. Overlaps IQ's drainage, road, and structural engineering services but as part of a much broader Nordic-rooted portfolio.
• CDM Smith Germany: Global engineering and construction firm with German operations serving water, environment, and infrastructure clients. Comparable to IQ on municipal water and environmental consulting but operates at multi-national scale.
• Arcadis Germany: Global design, engineering, and consulting firm with significant German operations in water, infrastructure, and environmental advisory. Competes with IQ on municipal water, drainage, and infrastructure tenders but at vastly larger scale.
• Ramboll Deutschland: German arm of Danish engineering consultancy Ramboll, active in water, environment, infrastructure, and urban development. Comparable service portfolio to IQ but with broader international bench and larger project scale.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Instagraminstagram.com/iq_mbh
• LinkedInlinkedin.com/company/iq-ingenieurgesellschaft-qadriga-mbh

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 Iq Ingenieurgesellschaft Qadriga Mbh