What SEMPAI does

SEMPAI (operating company: NetArch sp. z o.o.) is a Kraków-headquartered digital marketing agency that has operated continuously since approximately 2006, employing 120+ specialists and serving 350 clients, of which roughly 95% renew annually. The firm targets mid-market and enterprise e-commerce businesses (both B2C and B2B) in Poland and selectively in EMEA, providing an end-to-end service stack spanning paid acquisition (Google Ads, Meta Ads, TikTok Ads, Microsoft Advertising), SEO and content marketing, video marketing, conversion rate optimization, marketplace marketing on Allegro and Amazon, GA4 analytics, and marketing automation. Its principal differentiator is the proprietary Sempai Merchant 360 tool, which combines machine learning with human oversight to optimize product-feed advertising campaigns, complemented by the Aikito internal AI content-generation utility.

Commercial mechanics are professional-services in nature: engagements are structured as project-based work, monthly retainers, or performance-based arrangements, with pricing set via a "Zapytaj o ofertę" (Request a Quote) workflow rather than public rate cards. New clients are acquired through the website, industry events (notably the firm-owned InCommerce conference and external forums such as RZEcommerce and E-commerce Berlin Expo), referrals, and inbound demand generated by the agency's substantial content and education portfolio (Casebook PPC, Casebook SEO, GA4 Report covering 1,265 Polish e-commerce sites, Akademia Sempai training, and the "Marketing oparty na danych" podcast).

The company's competitive positioning is reinforced by premier-tier platform certifications (Google Premier Partner, Meta Business Partner, Microsoft Advertising Elite Partner, TikTok Agency Partner) and a dense, multi-year award record spanning European Search Awards, semKRK, Ekomersy, Performance Marketing Diamonds, and Mobile Trends Awards 2024 (1st place, Mobile Campaign). Long-tenured enterprise relationships — including Cocolita (since 2015), Orteo.pl (since 2009), E.ON Polska (since 2017), Black Red White, Deichmann, Zepter, WSiP, PWN, and Morele.net — provide revenue-anchoring case-study material and renewal stability. Group sub-brands (Kohai for creative, Shopai, Akademia Sempai for training, and the InCommerce conference/event) diversify monetization beyond pure agency retainers.

Name

SEMPAI

Legal name

NetArch sp. z o.o.

Website

https://sempai.pl

Company type

Private

Founded year

2006

Operating status

Operating

Headcount range

51–100 employees

Short description

SEMPAI is a Kraków-based digital marketing agency with 120+ specialists serving 350 e-commerce and B2B clients across paid search, social, SEO, analytics, and marketplace channels, differentiated by its proprietary Sempai Merchant 360 optimization tool and premier-tier platform partnerships.

Ownership category

akta.pro rank

Product category

Digital Marketing Services

NAICS

Advertising Agencies (54181), Media Buying Agencies (54183)

SIC

Services-Advertising Agencies (7311)

akta.pro primary industry

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

akta.pro secondary industries

SEO/SEM & Performance Marketing Tools (BPAMALAM), Lead Generation & Performance Media (B2B/B2C) (MPAAACAK), Digital Performance Marketing (SEM, Paid Social, Programmatic) (BPAFAAAD)

Keywords

• Digital marketing agency
• E-commerce marketing services
• Paid media management
• Search engine optimization
• Conversion rate optimization

Headquarters

HQ city

Kraków

HQ country

Poland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Digital Marketing Agency Services: Full-service digital marketing agency providing SEO, Google Ads, Meta Ads, TikTok Ads, Microsoft Advertising, video marketing, content marketing, marketplace marketing (Allegro/Amazon), conversion optimization (CRO), and web analytics services to e-commerce businesses. Revenue is generated through professional service fees structured as project-based engagements, monthly retainers, or performance-based arrangements.
2. Educational Products and Reports: The agency produces and distributes educational content including e-books (Casebook PPC, SEO guides, GA4 reports), online courses through Akademia Sempai, webinars, and industry reports (SEO & GEO Reports). Revenue from educational products complements service fees.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels14 records

Core offering

SEMPAI is a Polish digital marketing agency that plans and runs online marketing campaigns for e-commerce and B2B companies, covering Google Ads, Meta Ads, TikTok Ads, Microsoft Advertising, SEO, content marketing, video marketing, conversion rate optimization, marketplace marketing on Allegro/Amazon, and web analytics (GA4). Campaigns are executed by a team of over 120 specialists and supported by a proprietary campaign optimization tool called Sempai Merchant 360 that combines machine learning with human expertise.

Product overview

SEMPAI is a digital marketing agency with nearly 20 years of experience offering a comprehensive suite of online marketing services. The core offering centers on Sempai Merchant 360, a proprietary machine learning-powered campaign optimization tool for e-commerce, supported by human expertise. Services span paid advertising (Google Ads, Meta Ads, TikTok Ads, Microsoft Advertising, LinkedIn Ads), SEO with AI-powered positioning, content marketing, analytics (Google Analytics 4), conversion optimization, and marketplace marketing (Allegro, Amazon). The company also operates educational brands including Akademia Sempai (training programs) and organizes the InCommerce industry conference. Additional sister brands include Kohai, Shopai, and InCommerce training platform, extending the agency's reach across different market segments.

Differentiator

Problem solved

Functional benefit

Brands

• Sempai Merchant 360: A comprehensive tool for optimizing product campaigns for e-commerce, combining machine learning and human intelligence.
• Aikito
• Kohai
• InCommerce
• Shopai
• Akademia Sempai

Products and services

• E-commerce Marketing
• Google Ads Management
• Meta Ads Management
• TikTok Ads
• Microsoft Advertising (Bing Ads)
• SEO & Content Marketing
• Conversion Rate Optimization (CRO)
• Web Analytics (Google Analytics 4)
• Marketing Automation
• Marketplace Marketing (Allegro / Amazon)
• Video Marketing
• Lead Generation Services
• Digital Strategy Consulting
• Sempai Merchant 360
• Akademia Sempai

Quantifiable outcome

• 95% of clients renew their contracts — demonstrating consistent value delivery and client satisfaction.
• +6 more outcomes

Named customers26 records

Segments2 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration10 records

AI capability11 records

Feature1 record

Partnerships

Eight partnerships are on record, tiered core and minor.

• InCommerce ConferencecoreGTM or Marketing Partner · 19 March 2026InCommerce is an industry conference event series organized by SEMPAI, with its 22nd edition held on March 19, 2026 in Warsaw under the theme 'Where Strategy Meets Connection.' The event gathers ~200 e-commerce and marketing professionals for a full day of case study presentations and networking. SEMPAI serves as the organizer and host of this event, which also features external speakers and industry participants.
• KohaicoreStrategic or Co-development PartnerKohai (kohai.pl) is a related brand under the same network as SEMPAI, specializing in creative content services including TikTok content strategy, copywriting, and creative campaign development. Kohai and SEMPAI collaborate on client campaigns — Kohai provides creative concept development and content scripts while SEMPAI executes paid media campaigns. Joint case studies include eDomator (TikTok growth) and Prezent Marzeń (video marketing campaign).
• ShopaiminorOthersShopai (shopai.pl) is a related brand in the SEMPAI network, operating in the digital marketing space. Listed as another brand alongside Kohai and InCommerce under the SEMPAI umbrella.
• InCommerce (as organized event/brand)coreOthersInCommerce (incommerce.camp) is an industry event series organized by SEMPAI. 22nd edition took place March 19, 2026 in Warsaw with ~200 attendees from e-commerce, marketing, and technology sectors. SEMPAI is the sole organizer.
• Google (Premier Partner)coreTechnology or IntegrationSEMPAI holds Google Premier Partner status and Google Ads Partner status, with EMEA-level recognition. The agency has early access to beta features and exclusive Google tools. The partnership covers Google Ads, YouTube Ads, Google Analytics 4, Google Merchant Center, and Performance Max campaigns.
• Meta (Facebook, Instagram Ads)coreTechnology or IntegrationSEMPAI operates as a Meta Ads certified partner managing campaigns across Facebook Ads and Instagram Ads platforms for client brands. Implements Meta pixel, CAPI, and Dynamic Product Ads. Demonstrated across numerous case studies including Basilur Tea Poland, Wuber Tools, Cocolita, and Dominikazak.pl.
• Media Patrons (Marketer+, E-commerce w praktyce, Sprawny Marketing, Marketing przy kawie)minorGTM or Marketing PartnerIndustry media outlets that provided media patronage for the GA4 Report: Marketer+, E-commerce w praktyce, Sprawny Marketing, and Marketing przy kawie. These partnerships amplified reach and credibility for the research publication.
• Honorary Patrons (Izba Gospodarki, IAB Polska, Wyższa Szkoła Biznesu)minorGTM or Marketing PartnerIndustry organizations providing honorary patronage for the GA4 Report research: Izba Gospodarki (Polish Chamber of Commerce), IAB Polska (Interactive Advertising Bureau), and Wyższa Szkoła Biznesu (WSB). These partnerships enhanced the report's credibility and industry standing.

Scale indicators9 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Brainlabs: UK-headquartered global performance marketing agency focused on paid search, paid social, programmatic and SEO. Closely comparable to SEMPAI on channel mix, data-driven optimization, and mid-market/enterprise client orientation, though operating at significantly larger scale.
• Croud: UK-based tech-enabled digital marketing agency combining in-house specialists with a global "Croudie" network to deliver paid media, SEO, content and analytics. Directly comparable to SEMPAI on full-service performance marketing delivery and use of proprietary technology to scale output across geographies.
• Jellyfish: Global digital marketing agency (now part of Brandtech Group) offering paid media, SEO, content, analytics and creative to enterprise clients worldwide. Comparable to SEMPAI on multi-channel performance marketing depth and platform partnership status, though operating at much larger global scale.
• Dept: Netherlands-headquartered global digital agency with strong capabilities in performance marketing, SEO, content and analytics alongside creative and engineering. Comparable on full-service digital performance delivery and European mid-market/enterprise client base similar to SEMPAI's Polish roster.
• K2 (Agencja K2): One of Poland's longest-established digital marketing agencies, offering performance marketing, SEO, content and e-commerce solutions to Polish enterprises. Directly comparable to SEMPAI as a same-market competitor for Polish enterprise and mid-market clients with overlapping channel offerings.
• Wpromote: US-based independent digital marketing agency specializing in paid search, paid social, SEO and programmatic for mid-market and enterprise clients. Comparable to SEMPAI on independent mid-market/enterprise digital performance marketing positioning, channel depth, and award-winning PPC execution.

Broad incumbents

• iProspect: Dentsu's global performance marketing network specializing in paid search, SEO and programmatic media. Comparable to SEMPAI on SEM-led service mix, but operates as part of a global holding company's portfolio at much larger scale and with broader geographic reach.
• Performics: Publicis Groupe's global performance marketing network delivering paid media, SEO, affiliate and e-commerce activation. Directly comparable to SEMPAI's e-commerce-centric performance offering but as part of a full-service global agency holding at significantly larger scale.
• Merkle: Dentsu's customer experience and data-driven performance marketing network with strong martech/analytics capabilities. Comparable to SEMPAI's data-led, multi-channel performance delivery and proprietary tooling story, but embedded in a global holding company's broader CX portfolio.
• GroupM: WPP's global media investment group encompassing media planning, buying and performance marketing at the largest scale in the industry. Comparable to SEMPAI on the paid media buying and search/SEO service lines, but operates as a broad incumbent portfolio rather than a Poland-specialized boutique.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UChyHoUq-A3YQ9pUXO9W6LYg
• Facebookfacebook.com/sempai.agency
• LinkedInlinkedin.com/company/sempai
• Instagraminstagram.com/sempai.agency

Compliance10 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 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 SEMPAI