What Seim & Partner does

Seim & Partner (legally s&p Beratungs- und Planungsgesellschaft mbH) is a Wiesbaden-based consulting and engineering planning firm founded around 2015 and led by Managing Director Kai Seim. The company specializes in telecommunications infrastructure planning, with a primary focus on fiber optic network rollout (FttB/FttC/FttH) and 5G mobile network deployment across Germany, supplemented by operational subsidiaries in the Philippines and the USA. Its core technology is a GIS-based planning and analytics platform that incorporates LIDAR building height/roof data and up to 15 land use classifications for propagation modeling, enabling precise coverage calculations, site selection, and geo-scoring for underserved expansion areas.

The firm operates as a project-based B2B professional services provider, delivering six principal service lines: HOAI-compliant engineering planning and construction supervision, strategy and technology consulting for telecom operators, municipal funding advisory (ELER, EFRE, DIGI2, KIP, GAK), technical due diligence for network M&A, GIS analytics for 5G and mobile communications, and managed network documentation outsourcing. Customers span telecommunications carriers (EWE TEL, NetCom BW, alternative carriers), municipal bodies and Zweckverbände (notably in Lower Saxony and Baden-Württemberg), city utilities (Stadtwerke), and investment funds acquiring passive fiber assets. Pricing is project-based with no public disclosure, and revenue is not publicly reported.

Go-to-market is direct enterprise consulting with thought leadership through publications (5G studies, whitepapers), industry event participation, and regional press coverage. The firm has completed over 300 broadband projects, planned and built more than 40 networks, and supported 50+ funding applications since 2016, securing approximately €250 million in subsidies and supporting €350 million in total project volume for clients. The company is privately held with no external funding, no parent company, and remains founder-controlled.

Name

Seim & Partner

Legal name

s&p Beratungs- und Planungsgesellschaft mbH

Website

https://seim-partner.de

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

11–50 employees

Short description

Seim & Partner is a Wiesbaden-based specialist consulting firm providing GIS-driven planning, engineering, and funding advisory for German fiber optic (FttB/FttC/FttH) and 5G network infrastructure, serving telecom operators, municipalities, city utilities, and infrastructure investment funds.

Ownership category

akta.pro rank

Product category

Telecommunications Infrastructure Consulting

NAICS

Other Scientific and Technical Consulting Services (54169), Computer Systems Design and Related Services (54151)

SIC

Services-Engineering Services (8711), Services-Management Consulting Services (8742)

akta.pro primary industry

Telecommunications & Network Engineering Consulting (BPAHAIAH)

akta.pro secondary industry

Systems Engineering & Technical Program Management (BPAHAIAI)

Keywords

• Fiber optic network planning
• Broadband infrastructure consulting
• 5G network site planning
• Telecommunications engineering services
• Broadband funding advisory

Headquarters

HQ city

Wiesbaden

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, Infrastructure

Revenue model

1. Engineering Planning and Construction Supervision: Technical planning services for FttB/FttC networks following HOAI (Honorarordnung für Architekten und Ingenieure), from concept through design, permitting, and construction supervision.
2. Strategy and Technology Consulting: Advisory services for telecommunications companies on strategy, technology, market evaluation, business models, sales and marketing, and 5G network questions.
3. Funding Advisory for NGA Networks: Support for municipal clients in applying for federal and state funding (ELER, EFRE, DIGI2, KIP, GAK), including application preparation and project management.
4. Technical Due Diligence: Technical evaluation of built network structures for investors, including compliance checking, material verification, and fiber measurement validation.
5. GIS Analytics for Mobile Communications: Coverage analysis, propagation modeling, site search, and regulatory application support for 5G industrial applications.
6. Network Operations and Documentation Outsourcing: Digitalization of analog network information, creation of digital overall network plans, and integration of documentation into IT systems.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Seim & Partner provides specialized consulting and engineering services for telecommunications infrastructure, including FttB/FttC/FttH fiber optic network planning following HOAI standards, 5G mobile network GIS-based propagation modeling and site planning, NGA broadband funding advisory for municipal clients, technical due diligence for fiber network transactions, and outsourced network operations and documentation. Services are delivered directly to telecom operators, municipalities, city utilities, and investment funds through project-based consulting engagements.

Product overview

Seim & Partner (s&p Beratungs- und Planungsgesellschaft mbH) is a consulting and planning firm specializing in broadband and fiber optic network infrastructure. Founded 11 years ago, the company operates with approximately 50 employees (35 in Germany) and has completed over 300 broadband projects. Rather than offering a unified software product, the company provides a comprehensive portfolio of professional services including: FttB/FttC network engineering and construction supervision, strategy and technical consulting for telecommunications companies, NGA funding advisory for municipal clients, GIS-based mobile network propagation modeling and site planning, technical due diligence for network transactions, and network management and documentation outsourcing. The firm also develops custom systems supporting network planners and has operational presence in Germany, the Philippines, and the USA. Key service areas include planning Leistungen aligned with HOAI standards, broadband funding consulting (over 50 funding applications since 2016, approximately 250 million EUR in secured funding), GIS analytics with propagation modeling, and network outsourcing services. The company serves telecommunications operators, municipalities, utilities, and investment firms.

Differentiator

Problem solved

Functional benefit

Products and services

• FttB/FttC/FttH Network Planning and Construction Supervision HOAI-compliant technical planning and construction supervision services for fiber optic access networks (FttB/FttC/FttH), delivered to telecom operators, municipalities, and city utilities for broadband expansion projects.
• Strategy and Technology Consulting for Telecommunications Strategic and technical advisory services for telecom operators covering strategy, technology evaluation, market entry, business models, sales and marketing, and 5G deployment decisions.
• NGA Broadband Funding Advisory Application preparation and project management support for municipal clients seeking federal and state broadband funding, including ELER, EFRE, DIGI2, KIP, and GAK programs; over 50 applications supported since 2016 with approximately 250 million EUR raised.
• Technical Due Diligence for Fiber Networks Independent technical evaluation of built fiber network structures for investors and acquirers, including compliance checking, material verification, and fiber measurement validation.
• GIS Analytics for Mobile Communications (5G Site Planning) GIS-based coverage analysis, propagation modeling, site search, and regulatory application support for 5G mobile network deployments.
• Network Operations and Documentation Outsourcing Outsourced digitalization of analog network information, creation of digital overall network plans, and integration of documentation into operator IT systems.

Quantifiable outcome

• Over 300 broadband projects completed
• +5 more outcomes

Named customers7 records

Segments4 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

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Nokia (Network Planning Services): Major network equipment vendor that also offers network planning, optimization, and managed services. Represents incumbent competition for both fixed and mobile network planning mandates, though typically bundled with equipment sales.
• Axians: VINCI Energies' ICT brand providing end-to-end telecom network design, build, and operate services across Europe. Broader incumbent offering overlapping network planning and construction services, but as part of a much wider infrastructure portfolio.
• AtkinsRéalis: Global engineering services and project management firm with telecom infrastructure advisory capabilities. Overlaps in network planning and infrastructure advisory but operates across many engineering verticals at much larger scale.
• BearingPoint: European management and technology consultancy with a dedicated telecommunications practice serving operators and regulators on strategy, transformation, and infrastructure projects. Overlaps with Seim & Partner's strategy and economic advisory streams but at significantly larger scale.

Direct peers

• Detecon International: Management and technology consultancy focused on telecommunications, digital infrastructure, and network transformation. Comparable offering of telecom strategy, technology, and infrastructure advisory to operators and infrastructure investors, though larger and more international.
• Analysys Mason: Global specialist telecom strategy consultancy covering fixed and mobile network strategy, regulation, and infrastructure transactions. Directly comparable in providing technical and commercial advisory to telcos, investors, and governments.
• Coleago Consulting: Specialist telecom strategy consultancy advising operators on network strategy, 5G business cases, and regulatory economics. Comparable niche focus on telecom strategy and economic advisory for operators and regulators.
• atene KOM: German consulting firm focused on broadband expansion, digitalization, and subsidy/funding advisory for municipalities. Highly comparable to Seim & Partner in target customer (Gebietskörperschaften), service mix (funding applications, network planning), and reliance on German/EU broadband programs.
• IDATE DigiWorld: European digital economy and telecom research/consulting firm. Comparable in providing telecom market analysis, regulatory and infrastructure advisory, and technology studies to operators and public-sector clients.
• WIK Consult: Wiesbaden-based economic and regulatory consulting for the telecommunications sector. Comparable as a Germany-anchored telecom strategy and regulatory advisory serving operators, regulators, and public-sector clients.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries2 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 Seim & Partner