Munich Re was established in 1880 by Carl Thieme, who later went on to co-found Allianz Group in 1890. Munich Re is a leading reinsurance company headquartered in Munich, Germany.

Hanseatische Seeversicherungs-Gesellschaft was founded on July 28, 1885, which later evolved into Allianz Global Corporate & Specialty SE.

Allianz AG was established in Berlin on February 5, 1890 by Carl von Thieme and Wilhelm von Finck. Initially offering marine and accident policies in Germany, it later expanded internationally with the opening of its first branch office in London in 1893.

In 1893, Allianz made its first international move by opening an office in London, UK. The London office was set up to serve German customers insured against transport losses abroad, marking the beginning of many foreign investments for Allianz.

In 1900, Allianz became the first insurance company to receive a license to distribute corporate policies. This marked a significant milestone in the company's history as it expanded its offerings beyond individual insurance policies.

Allianz plc was established in 1902 in Ireland and has since become a prominent player in the insurance market, providing a wide range of insurance products to customers in both the Republic of Ireland and Northern Ireland.

In 1904, Paul von Naher assumed full leadership of Allianz AG, overseeing its expansion into the United States and other international markets. Under his leadership, the company grew to become the largest maritime insurer in Germany.

In 1905, Allianz started providing fire insurance policies.

The 1906 San Francisco earthquake resulted in significant losses for Allianz, amounting to 300,000 marks. This event highlighted the challenges of the company's early expansion efforts.

Allianz Asia-Pacific started providing fire and marine insurance in China in 1910, leading to swift growth in the region. It now has subsidiaries in various countries like Thailand, Singapore, and Japan.

In 1911, Allianz began selling machinery breakdown policies, becoming the sole provider of such insurance until 1924.

By 1914, Allianz had entered markets in the Netherlands, Italy, Belgium, France, the Scandinavian countries, and the Baltic States. It had also established itself as the leading maritime insurer in Germany.

Allianz faced significant losses in staff and a 20 percent reduction in premium income due to the effects of World War 1.

In 1921, Kurt Schmitt took over as the leader of Allianz following the death of Von Naher.

In 1922, Allianz started providing property insurance policies.

Allianz introduced a new logo featuring three Allianz eagles, symbolizing its three subsidiaries, and changed its name to Allianz Group.

Allianz implemented new data processing methods to record statistics, enhancing business efficiency and profitability.

In 1927, Allianz merged with Stuttgarter Verein Versicherung AG, expanding its operations.

Allianz merged with FAVAG, Germany's second leading insurer, following a scandal involving FAVAG.

Allianz established a Materials Testing Centre to investigate aspects of machine insurance through damage research and risk prevention.

On June 30, 1933, Kurt Schmitt, the Director-General of Allianz, was appointed as the Economics Minister for Nazi Germany under Adolf Hitler.

At the end of World War II, Allianz faced bankruptcy due to depleted assets, ceased work activities, and major losses.

Allianz relocated its head office to Munich, Germany, due to the Soviet blockade of Berlin and started regaining business after World War II.

In 1956, Allianz implemented electronic data processing using Europes first magnetic drum data processing machine.

Allianz introduced a new advertising campaign with the motto 'Well Insured by Allianz'.

Allianz expanded its international presence by opening an office in Paris and acquiring subsidiaries in Milan, Italy, and Vienna, Austria.

In 1962, Allianz's premium income surpassed one billion, with a significant portion driven by motor insurance.

Allianz embraced modern technology in 1969 by using ELIAS Streamline data processing products, leading to electronic data processing and reduced employee numbers.

By 1973, Allianz and Allianz Life became Europe’s largest insurer and one of the top ten insurers globally, with a focus on industrial risk insurance business.

In 1974, Allianz established the Allianz International Insurance Company in London.

In 1977, Allianz refined its logo by incorporating a circle enclosing the Allianz eagle.

Allianz initiated its operations in Indonesia in 1981 with a representative office. Over the years, it expanded its presence by establishing general and life insurance companies in the country.

Allianz started its operations in Greece on December 2, 1985, by establishing its first office in Abelokipoi Athens. The company has now grown to have almost 500 offices in Greece.

In 1986, Allianz acquired Cornhill Insurance PLC in London and purchased a stake in Riunione Adriatica di Sicurtà (RAS) in Milan, which helped strengthen its presence in Western and Southern Europe.

Allianz initiated its operations in Mexico in 1987, expanding its global footprint in the insurance industry. The establishment of Allianz Mexico marked a strategic move by the company to tap into the Latin American market.

Allianz established its direct presence in Turkey in 1988, partnering with Şark Sigorta and Tokio Marine insurance company of Japan.

In 1990, Allianz expanded into eight Eastern European countries by establishing a presence in Hungary. Additionally, Allianz acquired Fireman's Fund in the United States and Assurances Générales de France (AGF) in Paris, further expanding its global reach.

In 1991, Allianz expanded its portfolio by acquiring the US insurer Fireman's Fund.

Henning Schulte-Noelle commissioned an archive for corporate history, becoming the first Allianz CEO to address the company's activities during Nazi Germany.

In 1995, Elvia became a part of Germany's Allianz Group, marking a significant development in the company's history.

Allianz Slovenija, podružnica was established in Slovenia in 1996.

In 1997, Allianz made history by becoming the first foreign life insurance company to be granted permission to operate in China since 1949.

In 1998, Allianz expanded its services to include asset management and banking.

In 1999, Allianz modernized its logo to reflect its main business areas and expanded into Asia by establishing insurance companies in China and Taiwan.

In April 2000, Allianz Cornhill Insurance plc was renamed to Allianz Insurance plc.

In April 2001, Allianz agreed to acquire the 80% of Dresdner Bank that it did not already own, marking a significant financial move. This acquisition led to the formation of Allianz Global Investors.

Gerald Feldman published the comprehensive results of his research on Allianz's involvement with Nazi Germany in September 2001. The research concluded that Allianz voluntarily partnered with the Nazi Regime and Nazi Germany.

In 2002, Allianz increased its shareholding in Colseguros, becoming the sole owner of the company in Colombia.

On 13 October 2003, Allianz Bank Bulgaria received the name of its principal shareholder - Allianz Bulgaria Holding.

In 2004, the combined asset management business of Dresdner Asset Management Group, Dresdner RCM Global Investors, and the Allianz Group adopted the name Allianz Global Investors.

Allianz Arena in Munich, Germany, starts hosting home games for Bayern Munich and TSV 1860 München from the 2005-06 season.

In September 2005, Allianz announced the conversion of its holding company into a Societas Europaea (SE), making it one of the first major companies to do so. This move was part of the acquisition of its Italian subsidiary RAS and was completed on 13 October 2006.

In June 2006, Allianz announced a restructuring program that included laying off 7,280 employees worldwide, aiming to enhance profitability. This restructuring also involved renaming the Dresdner Kleinwort Wasserstein investment banking operation.

In October 2007, Allianz SpA in Italy was formed through the merger of three former insurance companies: RAS, Lloyd Adriatico, and Allianz Subalpina. This integration resulted in Allianz SpA becoming a prominent player in the Italian insurance market.

Allianz operates through Allianz Belgium, previously AGF Belgium which has been re-branded to Allianz Belgium in November 2007.

On 31 August 2008, Allianz agreed to sell 60.2% of Dresdner Bank to Commerzbank for €9.8 billion, with Commerzbank acquiring the remaining stake by January 2009. The sale price was later renegotiated to 5.5 billion Euro.

In 2009, Allianz signs an agreement to become the Global Partner of the St. Andrews Links Trust.

Since September 2010, Allianz has expanded its distribution channels by selling its products through Commerzbank branches in Germany.

Allianz sells its shares in the Polish football team Górnik Zabrze in April 2011.

In 2012, Allianz Belgium (including Luxembourg) and Allianz Netherlands were integrated to become Allianz Benelux.

In 2013, Allianz established Allianz X, a tech investment fund with one billion Euros in size, led by Nazim Cetin.

In 2014, Allianz formed Allianz Worldwide Partners by uniting three companies - Allianz Global Assistance, Allianz Worldwide Care, and Allianz Global Automotive. This new entity aims to provide integrated insurance and service solutions to customers.

In August 2015, a consortium led by Allianz acquired the German motorway service station group Tank & Rast for an undisclosed sum believed to be around €3.5 billion.

On November 25, 2016, Allianz inaugurated its new office in Kenya, marking its presence in the African insurance market. The CEO, Demba Sy, introduced Allianz Plaza as the company's operational base, focusing on providing a range of insurance services to businesses and individuals in Kenya.

In 2017, Allianz, alongside Macquarie Group and Valtion Eläkerahasto, acquired Elenia, taking ownership of Finland's second largest power distribution system operator and ninth largest district heating network.

In April 2018, TH Real Estate and Allianz partnered to provide £100m in debt finance for the development of 80 Fenchurch Street, a 240,000 sq ft office development in London.

On April 9, 2019, Allianz initiated a collaboration with Cynet, a cybersecurity company, to enhance its threat detection and response capabilities in Israel.

Starting on 1 January 2020, the General Insurance division of Liverpool Victoria was officially renamed Fairmead Insurance as part of the Allianz group of companies.

The naming rights deal between Allianz and Saracens for Allianz Park is terminated prematurely on October 25, 2020, after the 2019-20 season.

On August 1, 2021, Allianz disclosed that the United States Department of Justice had launched a probe into Allianz to determine the role that executives had played in the loss of billions of euros from Allianz Global's Structured Alpha Funds.

On September 30, 2021, it was reported that asset management chief Jacqueline Hunt would step down from Allianz as part of a shake-up following investigations into the losses from Allianz Global's Structured Alpha Funds.

On May 17, 2022, Allianz SE agreed to pay $6 billion in a U.S. fraud case related to the collapse of its Structured Alpha funds during the COVID-19 pandemic.

In March 2023, the trade name 'Allianz Commercial' was first announced, marking a significant development in the company's branding strategy.

In April 2023, Allianz put its 5% stake in fintech company N26 up for sale, with N26 valued at $3 billion (€2.7 billion).

Allianz is celebrating its 130th anniversary in 2024, marking over a century of providing insurance and financial services globally.