# Walnut Investment Services

Walnut Investment Services is a Bank / Wealth / Trust based in Brooklyn, United States.

## Overview

- **Organization type:** Bank / Wealth / Trust
- **Headquarters:** Brooklyn, United States
- **Region:** North America
- **Address:** Brooklyn, NY, United States
- **Founded:** 2000
- **Assets under management:** Undisclosed
- **Website:** walnutfund.com
- **LinkedIn:** https://www.linkedin.com/company/walnut-investment-services-llc

## Regulatory record

- **CRD number:** 113666
- **SEC file number:** 801-128864
- **Registration status:** APPROVED
- **Latest Form ADV filing:** 2026-04-06T05:00:00.000Z
- **Reports private funds:** No
- **Private funds reported:** 0
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/113666

## About

Founded in 2000, Walnut Investment Services built its practice in Brooklyn, New York, as a registered investment advisor catering to a broad client base that includes individuals, families, trusts, estates, and pension plans. The firm's wealth-generation narrative is not tied to a single operating company exit or family legacy but rather to the steady accumulation of advisory relationships over two decades. Unlike single-family offices that manage concentrated liquidity events, Walnut's identity is rooted in the fiduciary rhythm of a neighborhood wealth manager. Walnut's strategy centers on wealth management, financial planning, and portfolio management — the classic pillars of an RIA serving mass-affluent and high-net-worth clients. Without captive capital from a single family, Walnut competes on advisory trust rather than proprietary deal flow, a model that places it closer to a local trust company than to the direct-investing family offices tracked by institutional allocators. Its geographic focus remains the New York metropolitan area. The firm's scale is modest and undisclosed — no public AUM figure or professional headcount is available, and Walnut does not appear to maintain satellite offices. There is no record of adjacent philanthropic vehicles, real-asset arms, or membership in ultra-high-net-worth clubs. No operational event from the last 24 months has been reported in financial media or regulatory filings that would indicate a change in strategic posture. Walnut's structural differentiator is its regulatory form: a registered investment advisor operating without the capital base or concentrated family mandate that defines most entities in family-office datasets. This RIA structure imposes a fiduciary obligation to clients that is absent in pure single-family offices, yet it also limits Walnut's ability to co-invest alongside institutional allocators or participate in private-market club deals. The firm's architecture is built around advisory consistency rather than structural innovation.

## Sectors

- Wealth Management
- Financial Planning

## Questions

### What services does Walnut Investment Services provide?

Walnut offers wealth management advisory services including portfolio management, financial planning, and broader wealth management. These services are available to a range of clients, from individuals and families to pension plans and estates. The firm's RIA registration subjects it to fiduciary standards in delivering these services.

### Who leads investment decisions at Walnut Investment Services?

No named principals or investment committee members are publicly identified. The firm's leadership structure has not been profiled in financial media, and its website does not list key decision-makers. Without disclosed principals, the governance of investment decisions remains opaque to external observers.

## Related profiles

- [Wallonie Entreprendre](https://altss.com/profile/wallonie-entreprendre)
- [Walnut Private Equity Partners](https://altss.com/profile/walnut-private-equity-partners)

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Last updated: 2026-08-11T02:43:31.692Z

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