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Bayer Headquarters & offices · Leverkusen, Germany

Curved glass building around a lawn with a round pool
Bayer headquarters and the round pool, Leverkusen · Photo: Roland Halbe
Tall glass entrance hall with a colourful artwork
Entrance hall · Photo: JAHN
Glass atrium between the double façade layers
Inside the double glass skin · Photo: Roland Halbe
Long glass pergola beside the building
The pergola on Kaiser-Wilhelm-Allee · Photo: Roland Halbe
Aerial view of a semicircular glass building in a park
From the air · Photo: JAHN

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Bayer · Leverkusen, Germany

A 190-metre glass half-oval with a skin that breathes, opening onto a park in the city Bayer has called home since 1912.

The Helmut Jahn headquarters, the benefits Bayer offers in Germany and more than 160 years of office history — then the business. Every number from Bayer's own reports, careers pages and the designers' project pages.

  • 190 mlong glass headquarters, opened 2002
  • 1912Leverkusen becomes the headquarters
  • ≈ 5,000Bayer people in Leverkusen (2025)
  • +30 daysextra time off in the years before retirement

See inside the office Benefits

Sources: Werner Sobek project page · bayer.com history timeline and Leverkusen site page (2025) · bayer.com/de-de/deutschland/karriere (Work-Life-Harmony)

Companies / Germany / Pharmaceuticals & crop science / Bayer

THE HEADQUARTERS · KAISER-WILHELM-ALLEE · 2002

A glass half-oval with a skin that breathes

Chosen through an invited international competition, Helmut Jahn's headquarters is a semi-elliptical building that opens south toward a park. Two fully glazed shells form a protected cavity that lets fresh air in through operable windows and shades the offices; convectors in the raised floor condition the air as it enters. A 15 m-high glass entrance hall and a 117 m-long glass-and-steel pergola face the street, and in front of the building a bosque of clipped sycamores and a round reflecting pool echo the Bayer logo.

  • Design: Murphy/Jahn (Helmut Jahn)
  • ≈ 190 m long, double-skin glass façade
  • GFA 23,100 m² (≈ 248,646 sq ft)
  • 15 m-high glass entrance hall
  • Landscape: PWP Landscape Architecture
  • Opened October 22, 2002

Inside the double glass skin

Helmut Jahn's 2002 headquarters wraps its offices in a double glass façade that ventilates naturally; stairs and walkways run inside the light-filled layers.

Office floors seen through a glass wall
Office floors behind the glass · Photo: JAHN
Interior façade layers with a view to a historic building
Looking out to the old administration building · Photo: JAHN
Glass-walled atrium with steel structure
Atrium · Photo: Roland Halbe
Steel staircase inside a glass hall
Staircase · Photo: Roland Halbe
Bright glass corridor
Corridor · Photo: JAHN
Stairs between glass and steel walls
Stairwell · Photo: JAHN
Glass interior with walkways
Walkways · Photo: Roland Halbe

The entrance hall and pergola on Kaiser-Wilhelm-Allee

A 15 m glass entrance hall and a 117 m pergola lead from the street to the building.

Glass entrance hall looking out to a red-brick building
Entrance hall · Photo: Roland Halbe
Glass pavilion and pergola beside a lawn
Entrance and pergola · Photo: JAHN
Under the long glass pergola
Under the pergola · Photo: JAHN
Pergola lit in the evening
Pergola at dusk · Photo: Roland Halbe

The park side: sycamore arcade and the round pool

PWP Landscape Architecture laid out the park side with a sycamore bosque and a round pool.

Courtyard lawn with a tree inside the curved building
Courtyard · Photo: Roland Halbe
Low glass building beyond a park
Park side · Photo: JAHN
Glass pavilion and a tower behind a lawn
Kaiser-Wilhelm-Allee, 2009 · Atamari / CC BY-SA 3.0 · Wikimedia Commons

Facts: Jahn project page “Bayer Headquarters” · Werner Sobek project page “Bayer Headquarter” · PWP project page · Bayer press release, Oct 22, 2002

Leverkusen

BuildingAddress
Headquarters (Konzernzentrale)Kaiser-Wilhelm-Allee 1, 51373 Leverkusen, Germany

Source: bayer.com Imprint. Bayer says its old administration building stands directly opposite the new headquarters. · See them on the map ↓

ArchitectMurphy/Jahn, Chicago (Helmut Jahn)
Structure & façadeWerner Sobek
LandscapePWP Landscape Architecture
Gross floor area23,100 m² (≈ 248,646 sq ft)
Size (architect)122,500 sq ft (11,380 m²), 4 floors
Length≈ 190 m
BuiltPlanned 1998–2000, built 2000–2002; opened Oct 22, 2002
Cost≈ €50 million
AwardsAIA National Honor Award; AIA Distinguished Building Award – Citation of Merit 2003

Source: Werner Sobek project page (GFA, length, dates, award) · Jahn project page (size, floors, awards) · PWP project page · Bayer press release, Oct 22, 2002 (opening, cost). The two size figures come from different measures and do not match.

Benefits (Germany)

Before retirement+30 days

Collectively-agreed employees aged 57 and over can take up to 30 extra days off on top of their holiday.

BayZeitTime account

A long-term account where employees save time and pay components to take long breaks later.

FreiZeitBonus → time

Swap part of a bonus for extra days off.

Variable pay4 parts

Base salary plus four variable components tied to performance and company success.

Shares and savingsBayShare

Employee share programme, an employee fund and jubilee bonuses.

PensionPension funds

Retirement savings with the Bayer-Pensionskasse and Rheinische Pensionskasse, which also offer home-building loans.

Getting to workJobTicket

Job ticket, company bike leasing, showers for cyclists and car sharing.

Discounts150+ brands

A Corporate Benefits programme with discounts from more than 150 brands.

Source: bayer.com/de-de/deutschland/karriere/deine-benefits (Finanzielle Sicherheit, Work-Life-Harmony) · Bayer job posting 562949978475264, Leverkusen (2026). Number of holiday days and parental-leave pay are not published on these pages.

How Bayer describes working there

13.7%Fluctuation rate, 2025

12,158 people left in 2025, counting resignations, layoffs, retirements and deaths (14.0% in 2024).

DSODynamic Shared Ownership

An operating model introduced in 2024 that relies less on hierarchy and more on employees making decisions themselves; tracked in a global “Ownership Pulse” survey.

54.0%Covered by collective agreements

Share of employees worldwide whose working conditions were set by collective bargaining agreements in 2025.

1.32%Unadjusted gender pay gap

Group-wide in 2025, down from 2.14% in 2024. In Germany Bayer follows an equal-pay rule: same job, same pay.

35.1%Women in top management

Among the top 450 executives at year-end 2025; 44.2% across all management levels.

CareHelp when family needs you

Time off, reduced hours and free, anonymous counseling for employees caring for a relative, plus advice for parents planning parental leave.

Source: Bayer Annual Report 2025, Sustainability Statement S1 (Own Workforce: Strategy; Metrics and Targets) · bayer.com/de-de/deutschland/karriere (Finanzielle Sicherheit, Work-Life-Harmony)

Who works here

Where they work · 2025 (89,237 people, headcount)
Germany 22.0%USA 19.6%Other countries 58.4%
Gender · 2025
Men 57.9%Women 42.1%
88,078

employees (full-time equivalents, Dec 31, 2025)

19,600

employees in Germany

≈ 5,000

work in Leverkusen

44.2%

of managers are women

Source: Bayer Annual Report 2025, Earnings Performance (FTE) and Sustainability Statement S1 (headcount by country and gender) · bayer.com Leverkusen site page (2025). Shares calculated by eciffo.

Compare Bayer with: Johnson & Johnson

Office history: from Barmen to a glass half-oval in Leverkusen

  1. 1863
    Founded in Barmen

    On August 1, 1863, dye salesman Friedrich Bayer and master dyer Johann Friedrich Weskott founded “Friedr. Bayer et comp.” in Barmen, today part of Wuppertal, to make and sell synthetic dyes. The workforce grew from 3 people to more than 300 by 1881.

    Source: bayer.com, History of Bayer (timeline)

    Bronze plaque with the Bayer cross and the years 1863 and 1963
    Plaque marking Friedrich Bayer's house, Heckinghauser Straße 162, Wuppertal-Barmen · Frank Vincentz GFDL (self made) / CC BY-SA 3.0 · Wikimedia Commons
  2. 1878
    Elberfeld becomes the headquarters

    Elberfeld was the company's headquarters from 1878 to 1912. Carl Duisberg built a research laboratory there that set standards for industrial research.

    Source: bayer.com, History of Bayer (timeline)

    Old share certificate of Farbenfabriken vorm. Friedr. Bayer & Comp.
    A Bayer share issued in Elberfeld, 1908 · Unbekannte Autoren und Grafiker; Scan vom EDHAC e.V. / Public domain · Wikimedia Commons
  3. 1891
    A factory on the Rhine

    Elberfeld had become too small, so Bayer bought Dr. Carl Leverkus's Alizarin Red factory north of Cologne, then more land along the Rhine, and developed the site systematically from 1895.

    Source: bayer.com, History of Bayer (timeline) · Leverkusen site page

    Wide painted panorama of a factory town by the Rhine
    Panorama of the Leverkusen works by Otto Bollhagen, Villa Römer · Michael Kramer / CC BY-SA 3.0 · Wikimedia Commons
  4. 1912
    Leverkusen becomes the headquarters

    By 1912 Leverkusen was Bayer's headquarters, under Carl Duisberg, who led the company as General Director from 1912 to 1925. It has stayed there ever since.

    Source: bayer.com, History of Bayer (timeline) · Leverkusen site page

    No free-to-use photo found yet.Have one? We’d love to add it.
  5. 1925
    Part of I.G. Farben

    Bayer, with its sites in Leverkusen, Elberfeld and Dormagen, became part of the newly founded I.G. Farbenindustrie AG.

    Source: bayer.com, History of Bayer (timeline)

    No free-to-use photo found yet.Have one? We’d love to add it.
  6. 1951
    Refounded in Leverkusen

    Farbenfabriken Bayer AG was newly founded on December 19, 1951 and given the Leverkusen, Dormagen, Elberfeld and Uerdingen sites. By 1963 Bayer had nearly 80,000 employees.

    Source: bayer.com, History of Bayer (timeline)

    Black-and-white aerial view of a large chemical works
    The Bayer works in Leverkusen from the air, 1964 · Bundesarchiv / CC BY-SA 3.0 de · Wikimedia Commons
  7. 2002
    A new headquarters by Helmut Jahn

    After an international competition, Bayer opened its new headquarters on Kaiser-Wilhelm-Allee on October 22, 2002: about €50 million for a building where 275 Bayer AG employees worked. The old administration building stands directly opposite.

    Source: Bayer press release, Oct 22, 2002 · Jahn project page · bayer.com Leverkusen site page

    Glass pavilion and a tower behind a lawn
    The new headquarters on Kaiser-Wilhelm-Allee, 2009 · Atamari / CC BY-SA 3.0 · Wikimedia Commons
  8. 2023
    A memorial beside the headquarters

    Bayer unveiled a memorial right next to its headquarters for the victims of forced labor at I.G. Farben's Lower Rhine sites during the Second World War.

    Source: bayer.com, History of Bayer (timeline) · Finkelstein Foundation news, May 8, 2023

    No free-to-use photo found yet.Have one? We’d love to add it.

Map: how the headquarters moved

From Barmen and Elberfeld, today both part of Wuppertal, to the Rhine at Leverkusen. Bayer has been in Leverkusen since 1891 and headquartered there since 1912.

  1. 1 · 1863Barmen (Wuppertal) — Founding of “Friedr. Bayer et comp.” — town centre shown; no street address published
  2. 2 · 1878Elberfeld (Wuppertal) — Headquarters 1878–1912 — town centre shown; no street address published
  3. 3 · 2002Kaiser-Wilhelm-Allee 1, Leverkusen — Headquarters in Leverkusen since 1912; Helmut Jahn's building since 2002

Places and years: bayer.com history timeline and Imprint · Locations: OpenStreetMap

What Bayer does

Bayer started in 1863 as a maker of synthetic dyes. Today it works in health and farming under the mission “Health for all, Hunger for none”: seeds and crop protection, prescription medicines, and over-the-counter health products.

Three divisions: Crop Science, Pharmaceuticals and Consumer Health.

Where the money came from · sales by division, 2025

Crop ScienceSeeds, traits and crop protection
€21.6B
PharmaceuticalsPrescription medicines such as Nubeqa and Kerendia
€17.8B
Consumer HealthNon-prescription health products
€5.8B

Source: Bayer Annual Report 2025, Business Development by Division

Group sales, 2025€45.6B–2.2% reported, +1.1% adjusted for currency and portfolio
Largest region€16.7BNorth America, ahead of Europe/Middle East/Africa (€13.5B)
EBITDA before special items€9.7B21.2% margin
Sales in US dollars≈ $51.5B€45.6B × the 2025 average rate of $1.13 per euro

Source: Bayer Annual Report 2025, Earnings Performance and Economic Environment (average exchange rate) · dollar figure calculated by eciffo

Chief executives

No free-to-use photo.
2023 – today
Bill Anderson

Chairman of the Board of Management (CEO) since June 1, 2023; introduced the Dynamic Shared Ownership operating model.

No free-to-use photo.
2016 – 2023
Werner Baumann

Chairman of the Board of Management from May 1, 2016.

No free-to-use photo.
2002 – 2010
Werner Wenning

Chairman of the Board of Management from April 2002 to September 2010; opened the new headquarters in 2002.

Founders: Friedrich Bayer and Johann Friedrich Weskott (1863).

Source: bayer.com history timeline and Board of Management page · Bayer ad-hoc release, Feb 24, 2016 · Bayer media release on Werner Wenning's successor as Supervisory Board chairman

Bayer's official social accounts

Bayer's official accounts, as linked from bayer.com.

Bayer: questions people ask

Where is Bayer's headquarters?

At Kaiser-Wilhelm-Allee 1, 51373 Leverkusen, Germany. Bayer has been in Leverkusen since 1891 and has had its headquarters there since 1912.

Source: bayer.com Imprint · Leverkusen site page

Who designed Bayer's headquarters?

Murphy/Jahn of Chicago (Helmut Jahn) won an invited international competition for the building. Werner Sobek did the structural and façade engineering, and PWP Landscape Architecture designed the grounds.

Source: Jahn, Werner Sobek and PWP project pages

How big is Bayer's headquarters?

About 190 m long with a gross floor area of 23,100 m² (about 248,646 sq ft), according to the engineer. The architect lists 122,500 sq ft (11,380 m²) over 4 floors.

Source: Werner Sobek project page · Jahn project page

When did the current headquarters open?

It was officially opened on October 22, 2002. Bayer invested about €50 million, and 275 Bayer AG employees worked there at the time.

Source: Bayer press release, Oct 22, 2002

What makes the building special?

A double glass skin: the cavity between two glazed shells allows natural ventilation and shading, and fresh air enters through operable windows and floor convectors. The architect says this cuts operating costs by 60% compared with a conventional system.

Source: Jahn project page

How many people work at Bayer?

88,078 employees (full-time equivalents) at the end of 2025, or 89,237 by headcount — 19,600 of them in Germany and 17,455 in the U.S. About 5,000 work in Leverkusen.

Source: Bayer Annual Report 2025 · bayer.com Leverkusen site page

What benefits does Bayer offer in Germany?

Variable pay with four components, the BayShare employee share programme, company pension funds, the BayZeit time account, swapping bonus for time off, up to 30 extra days off from age 57 for collectively-agreed staff, and a job ticket and bike leasing.

Source: bayer.com/de-de/deutschland/karriere/deine-benefits

Does Bayer offer flexible or mobile work?

Bayer Germany describes flexible working hours and doing some tasks from home. Its job postings say flexible work arrangements can be agreed with the manager, depending on the job.

Source: bayer.com Work-Life-Harmony · Bayer job posting 562949978475264

Can you visit the area around Bayer's headquarters?

Bayer says the Carl-Duisberg-Park and its Japanese Garden, inside the 480-hectare Chempark in Leverkusen, attract visitors all year round.

Source: bayer.com Leverkusen site page

Who is Bayer's CEO?

Bill Anderson, Chairman of the Board of Management since June 1, 2023.

Source: bayer.com history timeline

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Photos are credited to their source. If you hold the rights or represent Bayer and want a photo changed or removed, contact us. Updated 2026-10-10.