What Sem House does

SEM House (SEMHOUSE Sp. z ograniczoną odpowiedzialnością) is a Poland-based digital marketing agency founded in 2015 and headquartered in Warsaw, with a secondary office in Bielsko-Biała. The company operates as part of the RTB House group, the ad-tech retargeting company, and is connected to Senuto, an SEO data platform whose CEO is also a co-founder of SEM House. The agency delivers search marketing services — SEO, SEM, PPC campaign management, and social media advertising — to Polish businesses and, more recently, international clients. It also operates a training business running SEO courses across 11 Polish cities.

The company's service portfolio centers on performance marketing for the Polish mid-market, with SEO as the largest disclosed practice. It leverages proprietary access to Senuto's keyword and visibility data, WhitePress's network of 100,000+ publishing portals for content and link distribution, and the RTB House retargeting stack for paid media. In 2024, SEM House launched an AI Visibility Audit service that analyzes brand presence in LLM-based search environments and AI-overview traffic, positioning the firm for the post-traditional-search transition.

SEM House's business model is project- and retainer-based digital marketing services sold directly to clients, supplemented by training/workshop revenue. Customer acquisition is primarily direct via the company website, supported by a network of city-specific landing pages targeting 18 Polish cities. Over 10+ years, the firm reports 1,500+ completed projects and 1,000+ clients. No revenue, headcount, or unit-economics data is disclosed in the available input.

Name

Sem House

Legal name

SEMHOUSE Spółka z ograniczoną odpowiedzialnością

Website

https://www.semhouse.com

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

SEM House is a Warsaw-based Polish digital marketing agency, part of the RTB House group, delivering SEO, SEM, PPC, social media, and AI Visibility Audit services to over 1,000 Polish and international clients.

Ownership category

akta.pro rank

Product category

Digital Marketing Services

SIC

Services-Advertising Agencies (7311)

akta.pro primary industry

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

akta.pro secondary industry

Lead Generation & Performance Media (B2B/B2C) (MPAAACAK)

Keywords

• Search engine optimization
• Pay-per-click advertising
• Social media management
• Content marketing services
• Performance marketing agency

Headquarters

HQ city

Warszawa

HQ country

Poland

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Digital Marketing Services: Professional agency services including SEO consulting, PPC campaign management, social media management, content services, and link building. Revenue generated through retainer fees and project-based engagements for businesses seeking digital visibility improvement.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

SEM House is a full-service Polish digital marketing agency that plans, executes, and manages paid advertising campaigns (Google Ads, Meta Ads, TikTok Ads, LinkedIn Ads, Microsoft Ads), search engine optimization (technical SEO, content, link building, local and international positioning, e-commerce SEO), and social media management (Facebook, Instagram, LinkedIn, corporate blogs) for business clients. The agency also offers standalone SEO audits, an AI Visibility Audit, competitor/content/technical analyses, and paid training programs (SEO training courses in 11 Polish cities and the SEM House Masterclass).

Product overview

Sem House is a full-service digital marketing agency that offers a comprehensive portfolio of online marketing services. The core offerings are organized into three main categories: (1) PPC/Performance Marketing including Google Ads, Meta Ads, TikTok Ads, LinkedIn Ads, and Microsoft Ads campaigns with associated audits and consultations; (2) SEO services encompassing audits (including AI-powered visibility audits), content services, link building, local SEO across 18 Polish cities, international SEO, and competitor/content/technical analysis; and (3) Social Media management covering Facebook, Instagram, LinkedIn, and blog operations with content recycling and custom publishing. The agency also provides free audit tools as lead generation (SEO audit, Google Maps audit, traffic analysis with AI) and educational programs including SEO training in 11 cities and masterclass programs. The company positions itself as part of the RTB House group, leveraging technology partnerships with Senuto (SEO data), WhitePress (content/backlinks), and NapoleonCat (social media automation).

Differentiator

Problem solved

Functional benefit

Products and services

• PPC/Performance Marketing Campaigns End-to-end paid advertising campaign management across Google Ads, Meta Ads (Facebook and Instagram), TikTok Ads, LinkedIn Ads, and Microsoft Ads, including associated account audits and consultations. Aimed at Polish businesses seeking measurable paid acquisition outcomes across search, display, and social networks.
• SEO Services Comprehensive search engine optimization offering covering technical analysis, content analysis, competitor analysis, content services, link building, and SEO audits. Targets Polish businesses seeking improved organic rankings and online visibility across technical and editorial dimensions.
• Local SEO Positioning Local SEO positioning services delivered across 18 Polish cities including Białystok, Bydgoszcz, Gdańsk, Katowice, Gorzów, Kielce, Kraków, Lublin, Łódź, Olsztyn, Opole, Poznań, Rzeszów, Szczecin, Toruń, Warszawa, Wrocław, and Zielona Góra. Designed for local service businesses that need Google Maps visibility and city-level organic rankings.
• International SEO Positioning International SEO services supporting Polish businesses expanding into foreign markets through multilingual content strategy and foreign positioning services. Aimed at clients requiring SEO visibility outside the Polish market.
• E-commerce SEO Search engine optimization services tailored to online stores, covering product page optimization, category page ranking, and e-commerce-specific SEO strategy. Built for Polish and international e-commerce operators seeking organic traffic growth.
• Social Media Management Full management of Facebook, Instagram, LinkedIn, and corporate blog presence including content planning, content creation, content recycling, and custom publishing. Targets businesses seeking sustained, multi-platform social media execution.
• SEM Services Search Engine Marketing services combining paid and organic search strategies into an integrated approach for clients seeking holistic search presence.
• AI Visibility Audit AI-powered audit analyzing website visibility in AI systems and search engines including Google AI Overviews. Built as a differentiated offering combining data, knowledge, AI, and LLM technologies for marketing optimization.
• SEO Training Courses In-person SEO training sessions offered in 11 Polish cities including Warsaw, Kraków, Wrocław, Bielsko-Biała, Gdańsk, Katowice, Łódź, Lublin, Poznań, and Rzeszów. Educational offering for professionals and businesses seeking to upskill internal teams.
• SEM House Masterclass Professional marketing masterclass training program covering advanced digital marketing topics. Mid-funnel educational offering supporting the agency's thought leadership positioning in the Polish market.

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Three partnerships are on record, tiered core.

• RTB HousecoreStrategic or Co-development PartnerRTB House is the parent company providing advanced technological infrastructure. The partnership enables SEM House to leverage deep learning technology for managing advanced performance marketing campaigns, combining RTB House's AI capabilities with SEM House's agency services.
• WhitePresscoreTechnology or IntegrationWhitePress provides SEO tools and access to over 100,000 publishing portals for quality backlinks. SEM House utilizes this network for link building services and content distribution campaigns for clients.
• SenutocoreTechnology or IntegrationSenuto provides data-driven SEO solutions that support SEM House's search engine optimization activities. The platform offers keyword analysis and visibility tracking capabilities. SEM House's CEO Damian Sałkowski is the founder of Senuto.

Scale indicators4 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Sempai: Polish digital performance agency offering SEO, Google Ads, Meta Ads, and analytics services. Directly comparable peer in terms of service mix, Polish market focus, and SMB-to-mid-market positioning.
• WebFX: US-based full-service digital marketing agency offering SEO, PPC, social media, and content services with a comparable multi-channel retainer model. Closest structural analog to SEM House in terms of integrated SEO+PPC+social service delivery.
• Thrive Internet Marketing Agency: Full-service digital agency providing SEO, PPC, social media, and content marketing on a retainer basis. Comparable business model and service mix to SEM House, focused on SMB and mid-market clients.
• Gruppo EDorası / Brainlab (or similar Polish mid-market digital agency): Mid-sized Polish digital agency offering SEO, SEM, social, and creative services to Polish SMBs and brands — directly competing with SEM House in the same geography and customer segments.

Others

• Senuto: Polish SEO data platform founded by SEM House CEO Damian Sałkowski. Like WhitePress, it sits inside the RTB House group and provides keyword and visibility data that SEM House uses internally; it functions as a supplier/ecosystem player rather than a competitor.
• WhitePress: Sibling company within the RTB House group providing a content and backlink platform with 100,000+ publishing portals. It is part of SEM House's link-building supply chain and is therefore ecosystem-adjacent rather than a direct competitor.
• NapoleonCat: Social media management and analytics tool within the RTB House group, used by SEM House to automate client social workflows. Comparable because it serves overlapping Polish SMB and agency buyers, but positioned as tooling rather than agency services.

Broad incumbents

• Performics: Publicis-owned performance marketing agency with deep SEO, SEM, and analytics practices. Overlaps with SEM House in paid search, SEO, and social media management for mid-market and enterprise clients across European markets.
• iProspect: Global performance marketing agency operating across SEO, paid search, paid social, and content. It competes for the same large Polish and international brand budgets as SEM House but with significantly broader geographic and channel reach.
• Publicis Groupe Poland: Global communications group with significant Polish operations spanning media, SEO, and performance. Competes with SEM House for larger Polish brand budgets and operates as a broader incumbent rather than a pure-play agency.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/sem-house-experts

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 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 Sem House