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TCW and SEI:
Scaling across public and private markets.
How SEI and TCW built a long-term relationship to support growth across markets.
TCW and SEI: Scaling across public and private markets.
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Strategic partner spotlight
Managing growth without the friction
Scaling an investment platform today is no longer just about adding strategies—it is about managing complexity across public and private markets while staying focused on performance. To support this evolution, many leading asset managers are turning to strategic partners to help them scale efficiently.
SEI has worked closely with TCW, a global asset manager with more than $206 billion in assets under management across mutual funds, ETFs, SMAs, CITs, BDCs, and private funds.*
As TCW’s platform has expanded, the firm has taken a deliberate approach to growth, partnering with SEI to streamline operations, manage complexity, and focus on investment outcomes.
Where collaboration drives capability
SEI and TCW have worked together for more than two decades. What began as a traditional service relationship has grown into a broader and integrated collaboration, supporting several parts of TCW’s business.
Today, SEI supports TCW across four core areas that help the firm scale efficiently while maintaining focus on its investment capabilities:
- Operating infrastructure: SEI provides integrated technology, trading, and administrative capabilities that support TCW’s operating model at scale.
- Distribution and product delivery: SEI’s platforms help bring TCW strategies to market across a range of vehicles, including SMAs and collective investment trusts.
- Private markets expansion: SEI’s fund administration capabilities support TCW’s continued growth in private markets, including its asset-backed finance platform.
- Investment enablement: TCW also serves as a sub-advisor to SEI across a broad range of fixed-income investment strategies, reflecting the depth of the relationship.
Through this collaboration, SEI helps TCW expand across public and private markets while maintaining flexibility in how it scales.
A model built for scale and focus
As asset managers grow in a more complex landscape, balancing expansion with operational efficiency becomes increasingly critical. SEI’s platform is designed to help clients meet this challenge—providing the infrastructure needed to scale without requiring proportional internal buildout.
SEI supports TCW’s separately managed account program and other vehicles across public and private markets, helping the firm launch new strategies efficiently, streamline operations, and maintain focus on core investment capabilities.
“As our platform has expanded across public and private markets, maintaining focus has become even more critical. We are deliberate about where we invest our resources—prioritizing investment expertise while relying on strategic partners for the infrastructure needed to scale. Our relationship with SEI allows us to grow with discipline, bring new strategies to market efficiently, and continue delivering for clients without unnecessary complexity.”
Managing Director, TCW
What this model enables
SEI’s relationship with TCW supports a range of outcomes tied to scalable growth and operating efficiency:
- Faster product launch support: Helping bring new strategies to market across multiple vehicles.
- Scalable platform coverage: Supporting investment delivery across a broad set of structures, including SMAs, UMAs, CITs, and private funds.
- Greater operating efficiency: Reducing the need for internal infrastructure buildout, allowing greater focus on investment capabilities and client outcomes.
Aligned for what’s next
As client needs evolve and the lines between public and private markets continue to blur, SEI works with clients like TCW to provide the infrastructure and capabilities required to support long-term growth.
Together, SEI and TCW are advancing a model that combines investment expertise with operational support—seeking to drive innovation and help the firm expand into new markets and deliver investment solutions more efficiently.
Together, SEI and TCW are advancing a model that combines investment expertise with operational support—seeking to drive innovation and help the firm expand into new markets and deliver investment solutions more efficiently.
Solutions to meet your challenges.
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*As of December 31, 2025.
Important information
Information provided by SEI Investments Company through its affiliates and subsidiaries. TCW has been a client of SEI since 2002. The information in this case study is for informational purposes only. Their experiences may vary from other clients working with SEI. SEI is not affiliated with TCW and does not endorse or promote TCW or its services. No part of this case study may be reproduced in any form, or referred to in any other publication without the express written permission from SEI and TCW. Some of the images, logos or other material used in this case study may be protected by copyright and/or trademark. If so, such copyrights and/or trademarks are most likely owned by the entity that created the material and are used purely for identification and comment as fair use under international copyright and/or trademark laws. Use of such image, copyright or trademark does not imply any association with such organization (or endorsement of such organization) by SEI and/or TCW, nor vice versa.