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Development, manufacturing and marketing of herbal medicinal products (phytopharmaceuticals) and dietary supplements.

Zeller Logo

Max Zeller Söhne AG

Romanshorn (CH) · Uttwil (CH)New on Amplifa

1864Founded
approx. 170Employees (Romanshorn and Uttwil)
5th generationFamily ownership
around 15% of revenueAnnual investments in R&D and quality control
more than 25Countries with internationally available medicines

About Max Zeller Söhne AG

Max Zeller Söhne AG is a mid-sized Swiss family company in its fifth generation, headquartered in Romanshorn. The company specialises in the development, manufacturing and marketing of herbal medicinal products (phytopharmaceuticals) with clinically proven efficacy as well as high-quality dietary supplements. The portfolio comprises film-coated tablets, tablets, juices, syrups, ointments and liquid extracts based on plant extracts such as St. John's wort, valerian, hops, butterbur, black cohosh, chaste tree, ivy as well as nasturtium and horseradish. Zeller is one of the few companies to control the entire value chain from seed to finished product; the subsidiary Vitaplant AG in Uttwil specialises in seeds and cultivation development. Around 15 percent of revenue is invested annually in research, development and quality control. Around 170 employees from disciplines such as biology, pharmacy, agronomy, medicine and chemistry work at the Romanshorn and Uttwil sites; the internationally marketed medicines are available in more than 25 countries.

Site
Romanshorn
Processes
Development, manufacturing and marketing of herbal medicinal products (phytopharmaceuticals) with, Seeds and cultivation development, development of innovative plant extracts (subsidiary Vitaplant, Research, development and quality control (around 15 percent of revenue invested annually, Manufacturing of film-coated tablets, tablets, juices, syrups, ointments, liquid extracts and, Development of herbal medicinal products (phytopharmaceuticals), Manufacturing of herbal medicinal products, Marketing/distribution OTC, Medical, zeller plus (dietary supplements), In-house research and development (around 15% of revenue in R&D and quality control)
Materials
Dry extract from valerian roots (Valerianae radix), Dry extract from hop cones (Lupuli flos), Dry extract from St. John's wort (Hyperici herba), Nasturtium herb powder (Tropaeoli herbae pulvis), Horseradish root powder, Extract from black cohosh (Cimicifuga racemosa), Dry extract Ze 440 from chaste tree fruit (Agni casti fructus), CO2 extract Ze 339 from butterbur leaves (Petasitidis folium)
Founded
1864
Employees
approx. 170 (sites
Industries
Pharmaceutical industry / phytotherapy, OTC medicines, Dietary supplements, Medical devices/medical portfolio
  1. 01

    Seeds and cultivation development (Vitaplunt AG)

  2. 02

    Traceable plant raw materials

  3. 03

    Extraction and development of innovative plant extracts

  4. 04

    Research and development

  5. 05

    Manufacturing (film-coated tablets, tablets, juices, syrups, ointments, liquid

  6. 06

    Quality control

  7. 07

    Marketing and distribution (OTC, Medical, zeller plus)

Active ingredients and extracts

VAE

Dry extract from valerian roots (Valerianae radix)

Active ingredient in sleep products such as zeller schlaf and zeller schlaf forte.

LUP

Dry extract from hop cones (Lupuli flos)

Complements valerian for difficulties falling asleep and staying asleep.

HYP

Dry extract from St. John's wort (Hyperici herba)

Active ingredient of remotiv® for depressed mood.

TRO

Nasturtium herb powder and horseradish root powder

Active ingredient combination of angocin® for respiratory and urinary tract infections.

CIM

Extract from black cohosh (Cimicifuga racemosa)

Used for menopausal complaints.

AGN

Dry extract Ze 440 from chaste tree fruit (Agni casti fructus)

Active ingredient of prefemin® for PMS complaints.

PET

CO2 extract Ze 339 from butterbur leaves (Petasitidis folium)

Active ingredient of zeller heuschnupfen.

HED

Dry extract EA575 from ivy leaves (Hederae helicis folium)

Active ingredient of PROSPAN® cough syrup for cold-related cough.

CAC

Cocoa extract (PhytoCacao® Cardio, EPI+ process)

Patented extract with 200 mg flavanols per daily dose to support vascular health.

SAL

Zeller balsam extract, Peru balsam, zinc oxide, larch turpentine, camphor

Ingredients of zeller Balsam ointment.

Sites

Romanshorn

CH

Headquarters, production, development

Materials
Plant extracts (dry extracts, fluid extracts, powders)

Uttwil

CH

Subsidiary Vitaplant AG, seeds and cultivation development

Materials
Plant raw materials

Industries

Pharmaceutical industry / phytotherapyOTC medicinesDietary supplementsMedical devices/medical portfolio

Processes & technical limits

ProcessesToleranceMax. partWeightLot sizeMaterials
Development, manufacturing and marketing of herbal medicinal products (phytopharmaceuticals) withEngineering––––Plant extracts (e.g. St. John's wort, valerian, hops,
Seeds and cultivation development, development of innovative plant extracts (subsidiary VitaplantEngineering––––Plant raw materials
Research, development and quality control (around 15 percent of revenue invested annuallyTesting–––––
Manufacturing of film-coated tablets, tablets, juices, syrups, ointments, liquid extracts andEngineering––––Plant active ingredients (dry extracts, fluid extracts,

Additional services

Development of herbal medicinal products (phytopharmaceuticals)Manufacturing of herbal medicinal productsMarketing/distribution OTC, Medical, zeller plus (dietary supplements)In-house research and development (around 15% of revenue in R&D and quality control)Control of the entire value chain from seed to finished productPlant toursZeller Academy (training for professionals)Partnerships with international pharmaceutical companies (product documentation, training,

History

  1. 1864

    Founded by pharmacist Max Zeller in Romanshorn with the development of the “miracle balm” for stomach and digestive complaints

  2. 1996

    Founding of Zeller Medical AG as a subsidiary of Max Zeller Söhne AG

  3. 2008

    Acquisition of Vitaplant AG (strategic backward integration, seeds and cultivation development)

  4. 2024

    Winner of the Family Business Award

  5. 2025

    Launch of the zeller plus line with PhytoCacao® Cardio

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