Seiten-Werk

What Seiten-Werk does

Seiten-Werk GmbH is a privately held, founder-managed B2B digital agency headquartered in Hamburg, Germany. Founded in 2016 and operating under the philosophy of "ehrliches Handwerk" (honest craftsmanship), the firm explicitly restricts its client base to business customers and excludes consumer/private engagements by contract. It serves more than 240 B2B clients and has delivered over 300 websites across eight years, targeting industrial, technical, and "erklärungsbedürftige" (complex-to-explain) B2B offerings in the DACH region (Germany, Austria, Switzerland).

The company's core technical stack centers on WordPress-based web development augmented by a proprietary in-house B2B website visitor identification software that decodes anonymous corporate visitors and their inbound search terms. It complements this with a suite of publicly available free tools (SERP Overlap Tool, ROI Calculator, LLMS.txt Generator, Search Intent Checker) and a "Digitalradar" process for evaluating emerging channels and AI trends. The agency has extended into AI-search optimization through its KI-SEO (GEO) offering and LLMS.txt generation, positioning clients for visibility in ChatGPT, Perplexity, and other large language model-driven discovery surfaces.

Commercially, Seiten-Werk operates a hybrid revenue model: one-time project-based fees for website creation and relaunches (governed as §611 BGB service contracts), combined with recurring monthly retainers for SEO services (minimum six-month terms), website maintenance, Google Ads management, and visitor identification subscriptions. Go-to-market is sales-led and inside-sales-driven, anchored by the agency's own organic SEO performance as proof of capability, free-tool-driven inbound lead generation, gated whitepapers, and a low-commitment free "Potenzialanalyse" (potential analysis) that qualifies prospects before formal engagement. The agency is ISO 27001 certified (2024) and a two-time German Web Award winner (2023, 2025), holding Google Partner status and a 4.88/5 ProvenExpert rating across 221 reviews.

Name

Seiten-Werk

Legal name

Seiten-Werk GmbH

Website

https://seiten-werk.com

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

1–10 employees

Short description

Seiten-Werk is a Hamburg-based B2B digital agency specializing in WordPress website creation, SEO, and lead generation for industrial and complex-offering businesses across the DACH region, supported by proprietary visitor identification software and AI-search optimization services.

Ownership category

akta.pro rank

Product category

Digital Marketing Services

NAICS

Computer Systems Design Services (541512), Custom Computer Programming Services (541511)

SIC

Services-Computer Programming Services (7371)

akta.pro industry

PRIMARYBPAFACAA

Search Engine Marketing (SEM) / Paid Search (PPC)

Business & Public Services/Marketing, Advertising & PR Services/Digital Marketing & Performance Advertising (SEM, Social, Programmatic)

SECONDARYMPAAACAK

Lead Generation & Performance Media (B2B/B2C)

Media, Entertainment & Sports/Advertising, Marketing & PR Services/Digital & Performance Marketing (SEO/SEM, Paid Social, Affiliate)

SECONDARYMPAAACAB

Search Engine Marketing (SEM) / Paid Search (PPC) Management

Media, Entertainment & Sports/Advertising, Marketing & PR Services/Digital & Performance Marketing (SEO/SEM, Paid Social, Affiliate)

SECONDARYBPAMALAM

SEO/SEM & Performance Marketing Tools

Business & Public Services/Web, Mobile & Digital Platforms/Advertising, Marketing & Creator Monetization Platforms

Keywords

• B2B SEO services
• Website creation services
• Search engine optimization
• B2B lead generation
• Digital marketing agency

Headquarters

HQ city

Hamburg

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Website Creation (Webseitenerstellung): One-time project-based fees for creating new websites or relaunching existing ones. Web creation contracts are governed as service contracts (Dienstvertrag) under German law (§611 BGB), with individual pricing agreed upon in each contract. Projects include corporate identity development, web design, programming, content migration, and launch.
2. SEO Services (Suchmaschinenoptimierung): Ongoing SEO services billed as service contracts (§611 BGB), with no guaranteed specific ranking results unless explicitly agreed. Monthly retainer-style engagements with ongoing optimization, monitoring, and reporting. Minimum contract term of 6 months for recurring services.
3. Website Maintenance (Wartung und Betreuung): Monthly or recurring maintenance contracts covering technical updates, bug fixes, and compatibility maintenance for client websites. Pages are optimized for Chrome, Safari, and Firefox browsers. Maintenance is separate from content updates.
4. Website Visitor Identification Service: Ongoing service using proprietary in-house software to identify and report on B2B website visitors for clients. Sold as a subscription or retainer add-on to website maintenance or SEO services.
5. Google Ads Management: Fees for managing Google Ads campaigns for clients, particularly for B2B companies seeking to capture high-intent traffic. Referenced in case studies alongside SEO services.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels8 records

Core offering

Seiten-Werk is a B2B-focused digital agency that designs, builds, and continuously optimizes websites for business customers while running their search engine optimization, content marketing, and lead generation programs. Its core deliverables include custom B2B website creation and relaunches, ongoing SEO and WordPress maintenance, AI-optimized (KI-SEO) search visibility, conversion optimization, and a proprietary B2B website visitor identification service that reveals the companies visiting client sites.

Product overview

Seiten-Werk is a B2B-focused digital agency providing integrated web design, search engine optimization, and online marketing services. The core offering combines SEO services (including KI-SEO/AI SEO, consulting, maintenance, content marketing, international SEO, and link building) with website services (creation, optimization, conversion optimization, WordPress maintenance). The company also offers proprietary SEO tools including SERP Overlap Tool, ROI Calculator, Search Intent Checker, and LLMs.txt Generator. Specialized B2B lead generation services including visitor identification software, cold outreach, and demand generation complement the technical offerings. The company positions itself as specializing in 'erklärungsbedürftige' (complex-to-explain) B2B offerings requiring specialized positioning and content strategies.

Differentiator

Problem solved

Functional benefit

Products and services

• Website Creation (Webseitenerstellung) Professional B2B website design and development service creating optimized, conversion-focused websites using agile methodologies. Covers corporate identity development, web design, programming, content migration, and launch. Sold as a one-time project-based service contract (Dienstvertrag, §611 BGB) for B2B companies in the DACH region.
• SEO Maintenance (SEO Betreuung)
• SEO Consulting (SEO Beratung)
• KI-SEO (AI SEO)
• Link Building (Linkaufbau)
• International SEO
• Content Marketing
• Website Optimization (Webseiten-Optimierung)
• Conversion Optimization
• WordPress Maintenance (WordPress-Wartung)
• B2B Lead Generation
• Cold Outreach
• B2B Website Visitor Identification (Webseitenbesucher Entschlüsselung)
• Google Ads Management

Quantifiable outcome

• Over 240 B2B companies trust Seiten-Werk with 300+ websites successfully handled over 8 years
• +4 more outcomes

Named customers13 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability4 records

Feature5 records

Partnerships

One partnership is on record.

• Mission MittelstandminorChannel Partner/ Reseller/ DistributorReferenced in the C-Tech case study: 'Ich komme auf Empfehlung von Mission Mittelstand auf Sie zu.' Mission Mittelstand appears to be a B2B referral/lead generation platform or network that recommended C-Tech to engage with Seiten-Werk.

Scale indicators8 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Claneo: Berlin-based B2B SEO and content marketing agency focused on international SEO and lead generation for B2B clients. Directly comparable to Seiten-Werk in service mix (SEO, content, international SEO), customer segment (B2B/enterprise), and DACH regional focus; both compete for similar industrial Mittelstand clients.
• SEO-Küche: German SEO agency providing search engine optimization, content, and SEA services primarily to mid-market and enterprise clients. Overlaps with Seiten-Werk on SEO consulting, B2B customer segment, and German-speaking geography; competes in similar procurement contexts for SEO retainers.
• Aufgesang: Hanover-based online marketing agency delivering SEO, SEA, and content marketing with a strong B2B tilt. Highly comparable in services (SEO consulting, SEA, content), mid-market to enterprise B2B customer segment, and German-language regional focus; routinely competes with Seiten-Werk for industrial and tech-services clients.
• Klickkonzept: Cologne-based SEO agency specializing in SEO strategy, link building, and content optimization for B2B and e-commerce clients. Comparable as a German SEO-focused service provider in the same competitive set, with overlap in SEO/SEA services and B2B customer segment.
• Peak Ace: Berlin-based digital marketing agency providing SEO, PPC, and content marketing with strong B2B and enterprise engagements. Comparable to Seiten-Werk in offering breadth (SEO + paid search + content), customer profile (B2B), and DACH geography, with similar agency-scale operations.
• Bloofusion: German-based digital marketing agency specializing in SEO, content marketing, and analytics for B2B companies. Directly comparable to Seiten-Werk in SEO services, content marketing, B2B focus, and German-speaking market reach; both operate in the same agency tier competing for industrial B2B mandates.

Broad incumbents

• diva-e: Stuttgart-based end-to-end digital agency providing strategy, technology, and marketing services including SEO, content, and digital transformation for enterprise B2B clients. Comparable to Seiten-Werk at the broader enterprise tier with overlapping SEO/content offerings, but operates at significantly larger scale with technology capabilities beyond pure SEO services.
• SISTRIX: Bonn-based SEO software/tooling company providing the SISTRIX Toolbox for enterprise SEO analysis. Comparable to Seiten-Werk as a German market-leader in the SEO space with significant B2B audience; operates at a broader scale as a SaaS platform rather than a service agency, positioning it as an incumbent that agencies (including Seiten-Werk) sometimes compete against for budget allocation.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/seiten-werk-gmbh-co-kg

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Seiten-Werk