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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,089 companies indexed · Last updated: today
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3'492 companies found

Genossenschaft zusammen-h-alt Logo

Genossenschaft zusammen-h-alt 

Winterthur · Since 2010

The company's core activity is providing residential and commercial spaces for people in the second half of life, complemented by various services such as hair salon, physiotherapy, medical massage, complementary medicine, homeopathy, podology, psychiatry/psychology, supervision, coaching and learning institute. The company also operates a shop-bistro and a kindergarten.

Housing Cooperatives
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Genovese for People Logo

Genovese for People 

Winterthur · Since 2022

The company's core activity is to advise and support companies in implementing change processes, particularly in the areas of digital transformation and the development of an agile corporate culture. This includes services such as change management, project support, coaching, consulting and workshops, which aim to support employees and teams in companies to develop their skills and potential and achieve sustainable change.

Public Relations Consulting
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GeoPlanet GmbH Logo

GeoPlanet GmbH 

Winterthur · Since 2020

The core activity of Geoplanet GmbH Switzerland is the manufacture, distribution and delivery of natural stone products, in particular granite products, such as paving stones, wall stones, curb stones, granite slabs and steps, as well as other stone products for construction and landscaping.

Glass, Ceramics, Stone & Construction Materials Industry
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Gesamtschule Villa Büel GmbH Logo

Gesamtschule Villa Büel GmbH 

Winterthur · Since 2018

The core activity of the company 'Gesamtschule Villa Büel GmbH' is the education and upbringing of children in a school setting. The company offers an age-mixed learning environment where students from different age groups can learn and develop together. The school focuses on action-oriented learning, research-based learning, and individual support for students.

Schools
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Gewerbe- und Wohnungsbau AG Logo

Gewerbe- und Wohnungsbau AG 

Winterthur · Since 1947

Gewerbe- und Wohnungsbau AG is a small private family company that owns and manages historic residential and commercial properties. The company provides services in old-building conservation, property management for apartments and retail units, and financing advice for other property owners.

Property Management
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G I O V E Kollektivgesellschaft Logo

G I O V E Kollektivgesellschaft 

Winterthur · Since 2020

The core activity of G I O V E is the development, production and distribution of clothing, particularly fashionable and comfortable garments for women and men, characterized by elegance, simplicity and versatility.

Textile & Clothing Industry
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GISensing AG Logo

GISensing AG 

Winterthur · Since 2015

The company GISensing AG offers managed GIS services specializing in the management of geographic information systems (GIS). The core activities include: GIS infrastructure and database management, GIS application development and support, GIS consulting and analysis, visualization and customization of GIS data, and integration of GIS solutions into existing systems. The company supports customers in solving complex spatial challenges and helps them make informed decisions based on their own data and contexts.

IT Consulting & Services
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GJEM International, G. Jenny Logo

GJEM International, G. Jenny 

Winterthur · Since 2012

IT Consulting & Services
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GK-Design Medien GmbH Logo

GK-Design Medien GmbH 

Winterthur · Since 2016

The core activity of GK-Design Medien GmbH is the creation and production of advertising materials and articles, including print media, signage, illuminated advertisements and promotional items, as well as consulting and supporting customers in matters of advertising.

Advertising Agencies
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Glitzerfee Kasper Logo

Glitzerfee Kasper 

Winterthur · Since 2017

Glitzerfee is a fashion company specializing in the production and sale of unconventional, creative and comfortable fashion, particularly for women and girls. The company's core activity is the design, production and sale of clothing and accessories, such as skirts, dresses, pants, tops and other fashion items, all of which are manufactured in Switzerland.

Textile & Clothing Industry
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goldhandwerk nora GmbH Logo

goldhandwerk nora GmbH 

Winterthur · Since 2023

The core activity of the company "goldhandwerk nora GmbH" is the manufacture and creation of individual pieces of jewelry, particularly wedding rings, in a workshop in Winterthur. The company offers customer-specific solutions and custom-made jewelry pieces according to the highest standards.

Jewelry & Precious Metal Manufacturing
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Gölz Consulting GmbH Logo

Gölz Consulting GmbH 

Winterthur · Since 2013

Gölz Consulting GmbH provides consulting in organisational development, change management and human resources with a practical HR focus. Services include organisational and culture development, absence and health management, assessments and trainings, coaching and moderation, and conflict and crisis management.

Management Consulting
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Grand Café du Musée / Wintimomo, Inhaberin Schindler Palden Logo

Grand Café du Musée / Wintimomo, Inhaberin Schindler Palden 

Winterthur · Since 2022

The core activity of Grand Café du Musée Wintimomo is in the field of gastronomy, specifically in the operation of cafes and restaurants, as well as in the provision of catering services. The company offers fresh, homemade, vegan and ecological food.

CateringRestaurants
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Grande Gusto AG Logo

Grande Gusto AG 

Winterthur · Since 2008

The core activity of Grande Gusto AG is system gastronomy, particularly the operation of restaurants and cafes, such as 'Il Gelatino' and 'City Grill', with the aim of supplying a broad customer base with excellent products.

Restaurants
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Gravenberg GmbH Logo

Gravenberg GmbH 

Winterthur · Since 2020

Gravenberg GmbH develops and sells biodegradable cleaning products under the 'DRUFF … und weg' brand, using microorganisms to remove organic odors and soils. The product range includes concentrated cleaners, absorber granules, a descaler (KalkKiller) and cleaning accessories for domestic and commercial use.

Chemical IndustryRetail - General Specialty Trade
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Groupe Curie AG Logo

Groupe Curie AG 

Winterthur · Since 2020

Groupe Curie AG develops and implements green chemistry and cleantech technologies and plants, including solutions for green ammonia, hydrogen and sustainable chemical production. The company provides engineering services, project planning and integration of renewable energy systems for industrial chemical and energy projects.

Chemical Industry
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Groupe Curie Wind GmbH Logo

Groupe Curie Wind GmbH 

Winterthur · Since 2023

Groupe Curie Wind GmbH provides engineering and consulting services in the cleantech sector, focusing on the design, construction and commissioning of plants for green hydrogen, green ammonia and sustainable chemical production. Its services include feasibility studies, technology licensing, basic and detailed engineering, project management, procurement and after‑sales technical support.

Energy Industry
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GRÜNGOLD GMBH Logo

GRÜNGOLD GMBH 

Winterthur · Since 2017

GRÜNGOLD GMBH designs, plans, constructs and maintains nature-based outdoor spaces and provides consulting, planning, tendering, construction management and maintenance concepts for residential, commercial, industrial and public projects.

Architecture Firms
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Grünmatt AG Logo

Grünmatt AG 

Winterthur · Since 2005

The core activity of Grünmatt AG is the development and management of residential complexes, in particular the construction and rental of apartments.

Real Estate Project Development
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Grünwerk-Mensch & Natur Logo

Grünwerk-Mensch & Natur 

Winterthur · Since 2000

The core activity of the Grünwerk association is nature conservation and environmental education. The association is committed to preserving and promoting biodiversity by carrying out activities such as planting and maintaining wild shrub hedges and high-stem fruit trees, promoting and maintaining light forests, combating invasive neophytes, and managing dry and reed meadows. In addition, the association offers environmental education programs for children, young people, and adults to promote competencies and awareness for nature conservation.

NGOs & NPOs
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GSK Leckortung GmbH Logo

GSK Leckortung GmbH 

Winterthur · Since 2022

The core activity of GSK Leckortung is the execution of roof analyses, leak detection and roofing work for all types of roofs, particularly for flat roofs of industrial facilities, exhibition and fair buildings, workshops, school buildings and other new or renovated buildings. This also includes roof maintenance and inspections, renovation work, roof cleaning, replacement of gutters, retrofitting of fall protection systems and the installation of roof windows.

Roofing
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GÜNTHARD. POLITUMSETZUNG GmbH Logo

GÜNTHARD. POLITUMSETZUNG GmbH 

Winterthur · Since 2009

The core activity of Günthard. Politumsetzung GmbH is the consulting and support of organizations and individuals in the areas of political communication, leadership and communication concept development. The company offers services such as strategy consulting, communication concept development, lobbying, campaigning, media work and leadership support. It targets administrations, public institutions, private companies and people in leadership positions who need support in communication and leadership.

Public Relations Consulting
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GUT-zusammenleben GmbH Logo

GUT-zusammenleben GmbH 

Winterthur · Since 2020

The core activity of Gut-zusammenleben GmbH is to advise and support individuals and organizations in developing conflict management, communication, personality development, and teamwork, with the goal of promoting well-being and cooperation in private, social, and professional contexts.

Coaching & Personal Development
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H2A raum für ideen ag Logo

H2A raum für ideen ag 

Winterthur · Since 2020

The core activity of H2A is the planning, design and realization of future-proof work environments and interior spaces for companies. This includes services such as needs analysis, space planning, interior construction, furnishing, lighting and acoustic planning, as well as project management. The company supports customers in creating modern, flexible and motivating work environments that meet the needs of employees and the company culture.

Interior Construction
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Hahnloser/Jaeggli Stiftung Logo

Hahnloser/Jaeggli Stiftung 

Winterthur · Since 1980

The company's core activity is the preservation, presentation and promotion of art and culture, particularly through the management and exhibition of the Hedy and Arthur Hahnloser collection, as well as supporting the Kunst Museum Winterthur and the museum association.

Museums
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haltiner & ARCHITEKTUR AG Logo

haltiner & ARCHITEKTUR AG 

Winterthur · Since 2001

haltiner & ARCHITEKTUR AG is an architectural practice offering design, planning and consulting services for new-builds, renovations and conversions. Services include work on residential and commercial projects, competition entries and advice on handling existing building fabric and spatial organisation.

Architecture Firms
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HammerDrum AG Logo

HammerDrum AG 

Winterthur · Since 2022

Research & DevelopmentCivil Engineering Firms
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HAND IN HAND: STIFTUNG FÜR EINE NACHHALTIGE ENTWICKLUNG Logo

HAND IN HAND: STIFTUNG FÜR EINE NACHHALTIGE ENTWICKLUNG 

Winterthur · Since 2005

HAND IN HAND: STIFTUNG FÜR EINE NACHHALTIGE ENTWICKLUNG supports projects for sustainable development with a focus on environmental measures, microfinance and education and training. The foundation implements projects in Haiti including water access, soil irrigation and desalination, reforestation, village savings and loan systems, literacy and scholarship programs.

Sustainability Sector
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Handschin & Handschin GmbH Logo

Handschin & Handschin GmbH 

Winterthur · Since 2021

The core activity of Handschin & Handschin GmbH is the development, publication and distribution of educational materials for the 2nd cycle of primary school, particularly thematic editions and design books for children.

Publishing
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HannesFRiTZ GmbH Logo

HannesFRiTZ GmbH 

Winterthur · Since 2001

Trade Fair & Event Organizers
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Hauskunft GmbH Logo

Hauskunft GmbH 

Winterthur · Since 2024

The company Hauskunft GmbH primarily deals with services in the field of monument preservation and building stock. The core activities include: on-site inspections and archive research, description and evaluation of objects, creation of expert opinions on the worthiness of protection of buildings, creation of inventory lists for protected monuments, and consulting and support for construction projects in a historical context. The company thus provides expert knowledge and services to support and preserve the handling of historic buildings and sites.

Architecture Firms
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HAWAdoc AG Logo

HAWAdoc AG 

Winterthur · Since 1998

The core activity of hawadoc AG is to provide services and solutions for the Swiss healthcare system, particularly for physician networks, medical practices, and health insurers. This includes, among other things: The provision of the family doctor model and the promotion of cooperation between patients, physicians, and health insurers; The administration of physician networks, including member management, contract negotiation, data management, accounting, marketing, and communication; The provision of consulting services, such as trust services, debtor management, and business management consulting; The provision of tools and platforms for collaboration and communication between healthcare stakeholders; The organization of continuing education and quality circles for medical personnel; The management of patient data and the provision of invoice printing and mailing services.

Administrative Services
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H&C Treuhand AG Logo

H&C Treuhand AG 

Winterthur · Since 2021

The core activity of HC Treuhand AG is the provision of services in the field of financial and corporate consulting, particularly in the areas of: financial accounting, payroll accounting, tax consulting, digitalization, corporate consulting, and real estate. The company thus offers comprehensive consulting and services for companies and private individuals in the areas of finance, taxes, and corporate management.

Fiduciary Offices
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Heiligberg Institut Logo

Heiligberg Institut 

Winterthur · Since 1998

The Heiligberg Institute offers its own movement school with weekly ongoing group and individual sessions in prevention and therapy. The company's core activity is the application and dissemination of Psychosomatic Functional Learning (PSFL), a movement system developed by Bet Hauschild-Sutter. This includes conducting courses, workshops and individual sessions in movement design, dance therapy and solution-focused work. The company also provides training and further education in the PSFL method and publishes books and DVDs on this topic.

Sports & Recreation Instruction
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Helg Consulting Logo

Helg Consulting 

Winterthur · Since 2011

The core activity of Helg Consulting is advising and supporting companies in change projects, particularly in the areas of: Cultural change, Corporate development, Project management, Agile transformation, Coaching, Conflict management, and Succession in family businesses. Additionally, the company offers individual coaching for executives and other decision-makers and supports the development of business models and conflict resolution in companies.

Coaching & Personal DevelopmentManagement Consulting
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Hermann Treuhand GmbH Logo

Hermann Treuhand GmbH 

Winterthur · Since 2011

The core activity of Hermann Treuhand GmbH is the provision of services in the field of finance and accounting, including trust services, consulting and services for companies and private individuals.

Fiduciary Offices
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Herzog & Vombach GmbH Logo

Herzog & Vombach GmbH 

Winterthur · Since 2015

The core activity of Herzog & Vombach is the provision of services in the field of wine and culinary arts, particularly in the areas of wine journalism, text creation and communication.

Public Relations Consulting
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Herzpraxis Winterthur GmbH Logo

Herzpraxis Winterthur GmbH 

Winterthur · Since 2024

Herzpraxis Winterthur GmbH is a cardiology practice providing non-invasive diagnostics and care for cardiovascular conditions. Services include resting and exercise ECG, ambulatory (Holter) ECG, long-term blood pressure monitoring, echocardiography and pacemaker/ICD follow-up.

Cardiology Clinics
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Heviana GmbH Logo

Heviana GmbH 

Winterthur · Since 2020

The core activity of Heviana GmbH is the accompaniment and care of expectant parents and newborns by midwives, including prenatal examinations, childbirth preparation courses, childbirth assistance at the Kantonsspital Winterthur (KSW), postnatal home visits and postnatal exercise classes.

Gynecology & Obstetrics Clinics
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HFS Aqua Holding AG Logo

HFS Aqua Holding AG 

Winterthur · Since 2023

The core activity of HFS Aqua AG is the development and realization of individual solutions for drinking water and wastewater treatment. The company offers specific services and products for the treatment of drinking water and wastewater, including planning, distribution, construction, service and development.

Technical Consulting & Engineering
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Himmelgrün GmbH Logo

Himmelgrün GmbH 

Winterthur · Since 2007

Himmelgrün GmbH provides gardening and landscape-architecture services, including garden maintenance, design and plant propagation. The company follows ecological practices and avoids synthetic plant protection products.

Horticulture & Landscaping
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Hochformat GmbH Logo

Hochformat GmbH 

Winterthur · Since 2005

The core activity of Hochformat GmbH is the creation and design of visual content, particularly in the fields of graphics, photography, illustration, animation and video. The specific services include, among others, the creation of logos, posters, menus, catalogs, brochures, flyers, advertisements and nostalgic images.

Advertising Agencies
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Hochkant Ingenieurbüro AG Logo

Hochkant Ingenieurbüro AG 

Winterthur · Since 2013

The core activity of Hochkant Ingenieurbüro AG is the planning and realization of construction projects in the fields of high-rise building, residential construction and public buildings, including foundation work, renovation and refurbishment of buildings. The company provides engineering services for demanding construction projects and accompanies customers from planning to realization.

Civil Engineering Firms
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Hoerni Coaching GmbH Logo

Hoerni Coaching GmbH 

Winterthur · Since 2023

The core activity of the company 'Hoerni Coaching' is the provision of coaching and supervision services, in particular Integrative Coaching and Supervision, with the aim of accompanying and supporting individuals in personal and professional development processes.

Coaching & Personal Development
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Holzbau Nessler GmbH Logo

Holzbau Nessler GmbH 

Winterthur · Since 2018

The core activity of Holzbau Nessler is wood construction, particularly interior finishing, renovations, conversions, small prefabricated construction and the installation of skylights, as well as work on listed buildings, using biological materials such as wood and clay.

Timber Construction & Carpentry
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HomeFindsMe AG Logo

HomeFindsMe AG 

Winterthur · Since 2022

The core activity of HomeFindsMe is the brokerage of real estate through a digital platform tailored to the needs and values of buyers and sellers. The company offers a partner brokerage service, where buyers and sellers are brought together based on their wishes, values and ideas. The platform supports the buying and selling process and offers additional services such as accompaniment by professionals and standardized contract processing.

Web Portals & Platform Companies
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HonEst Immobilien AG Logo

HonEst Immobilien AG 

Winterthur · Since 2019

The core activity of HonEst Immobilien AG is the marketing of residential properties, particularly in the Zurich/Winterthur and Thurgau regions. This includes services such as: sale of individual properties, marketing of new construction projects, and market value assessment of properties. The company acts as a partner for real estate and offers consulting and sales services for private and commercial clients.

Real Estate Brokerage
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horvath engineering GmbH Logo

horvath engineering GmbH 

Winterthur · Since 2022

The company "horvath engineering GmbH" is a building services planner specializing in the planning and realization of building technology systems. The company's core activity includes the planning and equipping of properties with sanitary facilities, heating systems, ventilation systems, and air conditioning systems. The company advises customers on the selection and implementation of efficient and comfortable solutions, taking into account environmental protection, economic efficiency, and hygienic requirements.

Technical Consulting & Engineering
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House of Winterthur Logo

House of Winterthur 

Winterthur · Since 2017

The core activity of Burckhardt Compression is the development and manufacture of compressors for the oil and gas industry, particularly for use in sustainable and secure energy sources. The company strongly positions itself in areas that require a shift towards more sustainable energy sources and develops solutions that meet the needs of the current generation without compromising the needs of future generations.

Mechanical Engineering Industry
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HR Kompetenzzentrum AG Logo

HR Kompetenzzentrum AG 

Winterthur · Since 2003

HR Kompetenzzentrum AG provides HR services for selection, development and separation of specialists and executives, offering individual assessments, recruitment mandates, executive coaching and outplacement.

Coaching & Personal DevelopmentRecruitment & HR Consulting
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Frequently asked questions

Searching the directory

How the search works, what each filter means, and how the results come together.

What can I search for in the directory?
The search field matches company names, industries and places. Beyond that you can filter by Industry (18 categories based on the NOGA classification), Size (number of employees), Region (canton, language region or postal code) and Special (keywords and entry date). Filters combine freely; the active ones appear as chips below the filter bar and can be removed there individually.
How do keywords work?
Keywords search the description and stated purpose of each company — the text that goes beyond the company name. Multiple keywords are combined with OR: every additional keyword widens the set of matches rather than narrowing it.
What belongs in the postal code field?
A single postal code (e.g. 8000) or a range (e.g. 1000-1010). The field accepts postal codes only — for place names, use Canton or Language region.
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How is organisation size determined?
Size reflects the number of employees and is calculated from publicly available information by a model developed in-house. It is a best-possible estimate, not an official figure.
What does the Verified label mean?
Verified means the entry is tied to a UID (Swiss business identification number) and therefore links back to the official Swiss business register. The label speaks to the company's identity — it is not a rating of its performance.

Source: Federal Statistical Office, UID register

How do I sort the results?
Use the dropdown above the list: Relevance, Name (A–Z), Best rating, Most reviews or Longest established. You can also switch between list and map view and set how many results appear per page.