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Milliman's Overview

Total employees4311
HeadquartersSeattle
Founded1947

Milliman is among the world's largest independent actuarial and consulting firms, providing a wide range of services and solutions to clients in healthcare, property and casualty insurance, life insurance and financial services, and employee benefits. Founded in 1947, Milliman is owned and managed by its principals and has offices in major cities worldwide. The firm is known for its technical expertise, innovative thinking, and commitment to client success through a combination of data-driven insights and deep industry knowledge.

Where is Milliman's Headquarters?

HQ Function

The Seattle headquarters serves as the central hub for Milliman's global operations, strategic planning, corporate governance, and support for its worldwide network of offices and consultants.

Notable Features:

Located in a prominent downtown Seattle high-rise, the headquarters offers modern office facilities, often with views of Puget Sound and the Olympic Mountains. It's designed with collaborative workspaces to foster innovation and teamwork.

Work Culture:

Milliman's HQ fosters a culture of intellectual rigor, collaboration, client-centricity, and professional integrity. Employees experience a challenging yet supportive environment with opportunities for growth and a focus on work-life balance, reflecting its consultant-driven, principal-owned structure.

HQ Significance:

As the founding city of the firm, the Seattle headquarters is pivotal in shaping Milliman's global strategy, upholding its independent voice, and driving research and development in actuarial science, data analytics, and consulting practices.

Values Reflected in HQ: The headquarters embodies Milliman's core values of independence, professionalism, client focus, and excellence. The environment is designed to support high-quality work, ethical conduct, and innovative solutions for complex client challenges.

Location:

Milliman operates globally, offering a comprehensive suite of functions including: actuarial services for life, health, property & casualty, and pension sectors; enterprise risk management; healthcare consulting and data analytics; employee benefits administration and strategy; investment consulting; and the development of proprietary software, data products, and analytical tools. These services are delivered through a network of offices in major cities across North America, Europe, Asia-Pacific, Latin America, and Africa, ensuring localized expertise backed by global insights.

Street Address:

1301 Second Avenue, Suite 3800

City:

Seattle

State/Province:

Washington

Country:

USA

Milliman's Global Presence

London, United Kingdom

Address: 11 Old Jewry, London, EC2R 8DU, United Kingdom

To deliver specialized expertise and tailored solutions to European clients, addressing unique market dynamics, regulatory requirements, and supporting cross-border business in areas like pensions, risk management, and advanced analytics.

Chicago, Illinois, USA

Address: 71 South Wacker Drive, 31st Floor, Chicago, IL 60606, USA

To cater to a diverse client base in a major U.S. financial and business center, offering expert consulting on regional market trends, state-specific regulations, and complex actuarial challenges across various industries.

Dublin, Ireland

Address: Ground Floor, Block E, Iveagh Court, Harcourt Road, Dublin 2, D02 YT22, Ireland

To provide actuarial and strategic consulting to the Irish market and international companies operating in or through Ireland, focusing on EU regulations, risk management, and financial reporting for insurers and other financial institutions.

Buying Intent Signals for Milliman

Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.

Notable news
Hiring actively
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
*Example signal, not calculated in real time

Executive Team of Milliman

As of April 2025, Milliman' leadership includes:

Stephen A. White - President and Chief Executive Officer
Ken Mungan - Chairman of the Board
Stephen R. Conwill - Chief Financial Officer
Chad C. Karls - Chief Information Officer
Patricia A. Renzi - Global Practice Director – Property & Casualty
Noah Champagne - Global Practice Director – Health
Dermot O'Regan - Global Practice Director – Life
Michael S. Viise - Global Practice Director – Financial Risk Management

Investors of Milliman

Milliman has been backed by several prominent investors over the years, including:

Milliman is a privately held, independent firm. It is owned and managed by its principals (senior consultants and leaders within the firm) and does not have external equity investors or public shareholders.

Executive New Hires/Exits in the Last 12 Months

Hire2
Exits0

Over the past 12 months, Milliman has made strategic appointments to bolster its executive leadership, notably in finance and information technology. As a privately-held firm, details on executive departures are not broadly publicized unless part of major strategic announcements.

New Appointments:

Stephen R. Conwill, Stephen R. Conwill joined Milliman as Chief Financial Officer, enhancing the firm's executive leadership team.
Chad C. Karls, Chad C. Karls was appointed as the new Chief Information Officer for Milliman, responsible for global IT functions.

Technology (Tech Stack) used by Milliman

Discover the tools Milliman uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.

Milliman Email Formats and Examples

Milliman typically uses a standard email format for its employees, which is [first].[last]@milliman.com. This is the most common format you'll encounter when trying to reach Milliman professionals. While variations might exist for specific cases or legacy systems, this primary format has a high success rate.

[first].[last]@milliman.com

Format

jane.doe@milliman.com

Example

90%

Success rate

News and media

MillimanMay 1, 2024

Milliman news: Multiemployer pension plans show significant funding improvement in Q1 2024

Milliman's Q1 2024 Multiemployer Pension Funding Study reveals that the aggregate funded percentage for all U.S. multiemployer pension plans rose to 99% as of March 31, 2024, up from 97% at the end of 2023, reflecting strong investment returns....more

MillimanApril 16, 2024

Milliman news: Milliman MedInsight launches new version of healthcare waste identification tool

Milliman MedInsight announced the release of an updated version of its MedInsight Waste & Inefficiency tool, designed to help health plans and providers better identify and reduce avoidable healthcare costs through enhanced analytics and benchmarks....more

MillimanJanuary 8, 2024

Milliman news: Milliman names Stephen R. Conwill as Chief Financial Officer

Milliman announced the appointment of Stephen R. Conwill as its new Chief Financial Officer. Conwill brings over two decades of financial leadership experience to the global consulting and actuarial firm....more

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