Klara Grün

What Klara Grün does

Klara Grün is a Berlin-based commercial cleaning company (KLARA GRÜN UG (haftungsbeschränkt), founded 2018 by Julia Seeliger) that operates as the first consistently sustainable Handwerksbetrieb in the German building-cleaning trade. Its core technology is a proprietary, in-house production line for ecological cleaning agents ("ökologisch verträgliche Reinigungsmittel aus eigener Produktion"), the recipes for which it publicly shares on its website as a brand-building asset. The service portfolio is built around recurring Unterhaltsreinigung (routine cleaning) for commercial and private clients, supported by specialty services including Glas- und Fensterreinigung, Bodenreinigung, Event- and Sonderreinigung, Baufeinreinigung / move-in/move-out, Service & Housekeeping, and a 2024-launched Tagesreinigung product aimed at smaller commercial spaces and hybrid offices. A separate knowledge-services line monetizes workshops, coaching, and founder-led keynotes on fair work and sustainable entrepreneurship.

The business model is a managed-services labor model: revenue is generated via individually quoted, post-Objektbegehung contracts (typically multi-year for Unterhaltsreinigung) with fixed, permanently employed cleaning teams, dedicated Objektleiter*innen, and bilingual (DE/EN) service delivery. Klara Grün is TÜV-certified under both ISO 9001 and ISO 14001, positioning the offering around ESG/SDG alignment for B2B and public-sector clients. Go-to-market is direct, inquiry-based enterprise field sales (co-working spaces, museums, galleries, public institutions, schools, manufacturers, retail) with a parallel inside-sales motion for private households and small-budget clients via Tagesreinigung, supplemented by content marketing, PR, and founder-led speaking.

The company is privately held and founder-financed (no external funding rounds disclosed), with 51-100 employees and operations strictly limited to the Berlin city area within the S-Bahn ring. While input data does not name a parent or external investor, the legal entity is a German UG (haftungsbeschränkt) registered at Amtsgericht Charlottenburg (HRB 203692 B), and ownership commentary indicates founder/management control with co-managing directors Benjamin Minack and Greta Konrad alongside Julia Seeliger. No acquisitions, subsidiaries, or public listing references are present in the data.

Name

Klara Grün

Legal name

KLARA GRÜN UG (Haftungsbeschränkt)

Website

https://klara-gruen.de

Company type

Private

Founded year

2018

Operating status

Operating

Headcount range

51–100 employees

Short description

Klara Grün is a Berlin-based commercial cleaning company that uses self-produced ecological cleaning agents and fair-labor employment to deliver TÜV ISO 9001/14001-certified Unterhaltsreinigung and specialty cleaning to B2B, public-sector, and private clients within the Berlin S-Bahn ring.

Ownership category

akta.pro rank

Product category

Commercial Cleaning Services

NAICS

Janitorial Services (56172), Carpet and Upholstery Cleaning Services (561740), Polish and Other Sanitation Good Manufacturing (325612)

SIC

Specialty Cleaning, Polishing And Sanitation Preparations (2842), General Bldg Contractors - Residential Bldgs (1520)

akta.pro primary industry

Bathroom Deep Cleaning (Tile/Grout, Descaling, Mold/Mildew) (HSAEABAB)

akta.pro secondary industries

Tile & Grout Deep Cleaning (Steam/High-Pressure Extraction) (HSAEALAB), Education (K-12/University) Cleaning (IMAIADAH)

Keywords

• Commercial cleaning services
• Ecological cleaning agents
• Building maintenance services
• Sustainable facility services
• Professional janitorial services

Headquarters

HQ city

Berlin

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Commercial cleaning contracts (B2B Unterhaltsreinigung): Recurring professional building-cleaning contracts for commercial and public-sector customers (offices, museums, co-working spaces, schools/care facilities, public institutions, manufacturers, retail). Contracts are individual, scoped after a site visit, and supported by fixed, permanently employed cleaning teams and Objektleiter*innen.
2. Specialty and one-off cleaning services: One-off or project-based services: Grundreinigung (deep cleaning), Baufeinreinigung / move-in/move-out cleaning, Glas- und Fensterreinigung (glass/window), Bodenreinigung (carpet/upholstery/hard floors), Event- und Sonderreinigungen, Housekeeping/Service for events.
3. Workshops, coaching, keynotes: Educational and consulting engagements for companies, cleaning operators, and other organizations on sustainable cleaning, plus keynote speaking by founder Julia Seeliger on fair work and sustainable entrepreneurship in the trades.
4. Tagesreinigung (daytime cleaning) for small/limited clients: Daytime cleaning at special terms for smaller commercial floor spaces or flexible/hybrid office models. Positioned as a more accessible entry product for clients with small floor area or budget.

Pricing tiers

Go-to-market motion3 records

Distribution channels3 records

Marketing channels7 records

Core offering

Klara Grün is a Berlin-based commercial cleaning service company that delivers ecological and fair-trade building cleaning (Unterhaltsreinigung) for offices, museums, co-working spaces, schools, public institutions, and private households, using its own in-house produced, ecologically compatible cleaning agents. Its portfolio spans routine cleaning, glass and window cleaning, floor cleaning, day cleaning, event and move-in/move-out cleaning, plus a knowledge line of workshops, consulting, and keynote speaking.

Product overview

Klara Grün offers a single, unified eco-friendly building cleaning service portfolio rather than a software platform-plus-modules architecture. The core offering is Unterhaltsreinigung (routine building cleaning) for commercial and private clients, supported by the Glas- und Fensterreinigung (glass and window cleaning) specialty. Around this core, a set of add-on specialized services extends the portfolio: Tagesreinigung (day cleaning for smaller spaces/budgets), Bodenreinigung (floor cleaning), Service & Housekeeping, Event- and Sonderreinigungen (event and special cleaning), and Umzugsreinigungen (move-in/move-out cleaning). A separate knowledge-services track — Workshops und Beratung (workshops and consulting) and keynote speaking engagements by founder Julia Seeliger — complements the operational cleaning business. All services share the company's distinctive value proposition: in-house produced ecological cleaning agents, fair pay above industry tariff, permanent employed teams with set hours, TÜV ISO 9001 and ISO 14001 certification, and bilingual German/English service delivery across Berlin within the S-Bahn ring.

Differentiator

Problem solved

Functional benefit

Products and services

• Unterhaltsreinigung (Routine Building Cleaning) Ongoing routine cleaning for commercial and private clients, covering office spaces, gastronomy, vacation rentals, retail, museums, galleries, and homes using ecologically produced cleaning agents from Klara Grün's own production.
• Glas- und Fensterreinigung (Glass and Window Cleaning) Streak-free cleaning of window fronts, glass walls, partition walls, and shop windows to deliver a bright, inviting appearance of premises for commercial and public-sector clients.
• Tagesreinigung (Day Cleaning) Daytime cleaning service offered at special terms (Sonderkonditionen) for smaller floor areas and tighter budgets; cleaning takes place at fixed hours during clients' regular business operations, ideal for smaller commercial spaces, flexible schedules, or hybrid office models.
• Bodenreinigung (Floor Cleaning) Cleaning of carpets, upholstery, and hard floors offered as a specialized add-on cleaning service.
• Event- und Sonderreinigungen (Event and Special Cleaning) Tailored, intensive cleaning for events and special occasions, including housekeeping/service for events and team lunches.
• Umzugsreinigung / Baufeinreinigung (Move-in/Move-out Cleaning) Construction fine cleaning (Baufeinreinigung) and move-in/move-out cleaning for tenants and property transitions, including deep cleaning at tenant changeover.
• Grundreinigung Berlin (Intensive Deep Cleaning) Thorough, value-preserving intensive cleaning to refresh high-wear large floor areas, business premises, walls, and floors — ideal at tenant turnover, season starts, or after major events.
• Workshops und Beratung (Workshops and Consulting) Workshops, coaching, and consulting engagements for organizations (cleaning companies, kindergartens, employers) on integrating sustainable practices into their cleaning routines and operations.
• Speaker / Keynote Engagements (Julia Seeliger) Founder Julia Seeliger offers keynote speaking and press engagement on fair work, sustainable entrepreneurship, and social-ecological change in the skilled trades sector.

Named customers2 records

Segments7 records

Ideal customer profiles4 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 core and minor.

• Squarespace (Squarespace Ireland Ltd.)coreTechnology or IntegrationSquarespace is the website builder and hosting provider for klara-gruen.de. Klara Grün rents storage, compute, and software from Squarespace Ireland Ltd. for the provisioning of its online presence, with data processing governed by the Data Privacy Framework and Standard Contractual Clauses.
• Google (Google Ireland Limited — Workspace, Analytics, Tag Manager, Ads, Ad Manager, reCAPTCHA, Hangouts/Meet)coreTechnology or IntegrationGoogle supplies Klara Grün's productivity stack (Workspace cloud apps), conferencing (Hangouts/Meet), web analytics (Google Analytics with IP-masking), tag management, online marketing (Google Ads with conversion measurement, Google Ad Manager), bot protection (reCAPTCHA), and fonts via its ecosystem. Klara Grün operates joint-controller relationships for these services under the Data Privacy Framework and Standard Contractual Clauses.
• Lexoffice (Haufe Service Center GmbH)coreTechnology or IntegrationLexoffice is used as Klara Grün's online software for invoicing, accounting, banking, and tax filing with document storage. The vendor is Haufe Service Center GmbH (Munzinger Straße 9, 79111 Freiburg, Germany) and a Data Processing Agreement is in place.
• Meta Platforms Ireland (Instagram and Facebook)minorGTM or Marketing PartnerMeta hosts Klara Grün's Instagram profile and Facebook page. The companies act as joint controllers for the collection of visitor data on those platforms; Meta processes data further under its own data policy, with Data Privacy Framework and Standard Contractual Clauses as transfer bases.
• LinkedIn Ireland Unlimited CompanyminorGTM or Marketing PartnerLinkedIn hosts Klara Grün's company profile. Klara Grün and LinkedIn are joint controllers for the collection of Page-Insights data on the profile, with LinkedIn handling further processing under its own terms and the Page Insights Joint Controller Addendum governing the relationship.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Emerging players

• Helpling: Berlin-headquartered online platform matching private households with cleaning service providers. Comparable to Klara Grün on the residential cleaning segment and as a Berlin-based consumer-cleaning brand, but competes via a marketplace model rather than employed teams.
• Putzmunter: Berlin-based cleaning-services provider offering household and commercial cleaning via employed teams. Closest in scale and geography to Klara Grün, and competes for the same Berlin-based commercial and private customers, though without Klara Grün's explicit eco/fair-labor branding.
• Book a Tiger: German online marketplace for booking residential and small-business cleaning services. Overlaps with Klara Grün's Privatkunden and small-commercial Tagesreinigung segments and competes for similar transactional customers, but with a platform-based rather than employed-staff model.
• Everclean: German cleaning-services company with an explicit sustainability and fair-labor positioning comparable to Klara Grün. Overlaps on the eco-friendly, transparently-staffed cleaning niche and targets similar ESG-conscious B2B customers in Germany.

Broad incumbents

• Piepenbrock Facility Management: Family-owned German facility-services group with a large building-cleaning division serving offices, industry, retail and public-sector clients. A broad incumbent comparable to Klara Grün on core cleaning service, customer segments, and ESG-certified positioning, but operating at national scale.
• Gegenbauer Services: One of the largest German facility-services groups, headquartered in Berlin, offering building cleaning alongside security, property, and technical services. Directly comparable as a Berlin-based commercial cleaning incumbent that Klara Grün competes against for the same B2B and public-sector contracts, but at a much larger scale and broader portfolio.
• Wisag Gebäudereinigung: Large German facility-services company with a dedicated building-cleaning business unit serving commercial, industrial, and public-sector clients nationwide. Directly comparable to Klara Grün on core cleaning services and target segments, and a likely competitor for the same ESG- and ISO-certified tenders.
• Kötter Services: German facility-services group offering cleaning, security, and personnel services to commercial and public clients. Comparable to Klara Grün on commercial cleaning services and customer segments, with substantially greater scale and geographic reach.
• Dussmann Service Deutschland: Major German facility-services provider offering cleaning, catering, security and technical building services to corporate and public clients. Comparable to Klara Grün as a direct competitor for large commercial and institutional cleaning contracts, with the scale and procurement leverage Klara Grün lacks.
• STRABAG Property and Facility Services: Facility-services arm of STRABAG, providing building cleaning and technical facility management to commercial, industrial, and public clients across Germany. Comparable to Klara Grün on cleaning services and B2B/public-sector customer base, and a relevant competitor in larger tenders.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/klara-gruen

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 Klara Grün