Top Family Offices in South Dakota 2026

Key Facts

• South Dakota holds the #1 trust jurisdiction ranking in the United States, awarded by Trusts & Estates magazine in both January 2024 and January 2025.
• South Dakota Trust Company (SDTC) administers over $165 billion in trust assets. It serves 120+ billionaire and 430+ centimillionaire clients.
• The state is a leading bank asset jurisdiction with $3.5 trillion in assets per the FDIC.
• Sioux Falls serves as the primary hub, with seven or more family office and trust company operations clustered downtown.
• The market includes multi-family offices (MFOs), trust companies, private family trust companies (PFTCs), RIAs with family office services, and family enterprise offices.
• International families from 54 countries make up 15% of SDTC's client base, reflecting strong cross-border capital flows.
• South Dakota charges no state income tax. Dynasty trusts have had unlimited duration since 1983.

Family Offices in South Dakota: Landscape Overview

South Dakota's private wealth market runs on statute, not geography. The state charges no income tax on trust income or growth, permits unlimited dynasty trust duration since 1983, and offers robust asset protection statutes. These advantages pull ultra-high-net-worth (UHNW) families and their capital from all 50 states and 54 countries, even when the families never relocate.

Sioux Falls anchors the physical operations. National and local firms maintain offices downtown, and the mix of office types is broad. Dedicated MFOs, South Dakota-chartered trust companies, RIAs offering wealth management with family office services, and the emerging family enterprise model all operate within the market.

A key structural differentiator is the private family trust company (PFTC). South Dakota offers the lowest PFTC capital requirements in the nation. Families can form an LLC qualified as a trust company through the state's Division of Banking.

This structure lets family members and advisors serve within the LLC without personal liability. SDTC alone holds $82 billion in PFTC relationships. Demand for these vehicles continues to grow alongside directed trust formations.

Wealth Manager Comparison at a Glance

South Dakota's market blends dedicated wealth managers, trust administrators, and hybrid advisory firms. The table below captures each office's core model and focus.

Family Office	Type	AUM Estimate	Investment Focus	Key Services	Location
South Dakota Trust Company (SDTC)	Trust Company	$165B+ AUA	Trust admin, PFTCs, complex assets	Trust admin, PFTC formation, dynasty trusts, asset protection	South Dakota
Cresset Capital	MFO	—	Wealth management, private capital deployment	Wealth management, tax strategy, exit planning, trust services	Sioux Falls
ECM Family Office	MFO	—	Custom wealth, OCIO, PE, alternatives	OCIO, PE review, PFTC board, trust protector, family oversight	South Dakota
Compound Family Offices	MFO	—	Fee-only advice, compounding returns	Wealth management, financial planning	South Dakota
First Covenant Trust	MFO	—	Trust and oversight focus	Dynasty trusts, offshore trusts, tax, charitable giving, bitcoin custody	South Dakota
Corient Trust Company	Trust Company	—	Directed trusts, dynasty trusts	Directed trust admin, purpose trusts, asset protection trusts	South Dakota
Sterling Trustees	Trust Company	—	Outsourced FO trust admin	Multi-custodian reporting, outsourced tax and allocation management	South Dakota
Trident Trust	Trust Company	—	Directed trusts, multi-advisor coordination	Directed trustee services, trust admin	South Dakota
Creative Planning	RIA with FO services	—	Full-scope wealth management	Family office services, tax, estate, charitable planning, accounting	Sioux Falls
Mariner Wealth Advisors	RIA with FO services	—	Complex finances, tax planning	Capital deployment, estate planning, trust services, insurance	Sioux Falls
Sequoia Sentinel Family Office	MFO	—	Legacy preservation, UHNW solutions	Wealth planning, estate, trustee support, risk management, family education	South Dakota
WillKate	Family Enterprise Office	—	Family enterprise, legacy planning	Ag/farm legacy, family governance, succession	South Dakota
Sawmill Trust	MFO	—	Multi-generational wealth	Portfolio management, family office services	South Dakota
Schwan Financial Group	MFO	—	Holistic financial planning, tax	Financial planning, tax planning	Aberdeen

Only SDTC reports a public asset figure. The remaining offices do not disclose assets under management. Families evaluating these firms should request fee schedules and client minimums directly. Thresholds range from $500,000 at Creative Planning to $20 million or more at ECM.

Top Picks by Strategy

• Largest Trust Administrator: South Dakota Trust Company (SDTC), with $165 billion in administered assets and relationships with 120+ billionaire families, forms the backbone of the state's trust ecosystem.
• Top MFO for Entrepreneurs: Cresset Capital operates under a True Fiduciary standard with 20+ offices nationally, offering exit planning and private capital access from its Sioux Falls hub.
• Strongest OCIO and PFTC Services: ECM Family Office provides outsourced chief investment officer (OCIO) services, serves on PFTC boards, and acts as trust protector for families with $20 million or more in assets.
• Best for Fee-Only Objectivity: Compound Family Offices is SEC-registered and fee-only, with no proprietary products or commissions. It partners with Schwab for custody and National Advisors Trust for corporate trustee needs.
• Leading Outsourced FO Platform: Sterling Trustees delivers cloud-based multi-custodian reporting and outsourced trust admin, letting families keep existing advisors while gaining South Dakota trust benefits.
• Broadest Service Menu: First Covenant Trust covers dynasty trusts, offshore trust planning, charitable giving, concierge services, and bitcoin multi-institution custody under one roof.
• Best for Agricultural and Family Enterprise: WillKate specializes in ag and farm legacy planning with a six-element approach to family enterprise structure found nowhere else in this market.
• Most Accessible Entry Point: Creative Planning opens its family office services to clients with $500,000 in investable assets, making it the broadest on-ramp in the state.

Detailed Office Profiles

South Dakota Trust Company (SDTC)

SDTC is the single largest trust administrator in the state, with over $165 billion in assets under administration. It works with 120+ billionaire clients and 430+ centimillionaire families, including international families from 54 countries. SDTC's primary role is trust administration: forming and managing PFTCs, structuring dynasty trusts, and coordinating asset protection strategies.

The firm holds $82 billion in PFTC relationships alone. For families choosing South Dakota as their trust situs, SDTC often serves as the institutional anchor. It handles compliance and administration while external advisors manage the portfolio. Its 600 years of combined staff experience makes it the default partner for families establishing new trust structures in the state.

Cresset Capital

National reach meets local trust capability at Cresset's Sioux Falls office, part of a 20+ location network serving founders and entrepreneurs. Cresset operates its own South Dakota-chartered trust company to deliver trust services under what the firm calls True Fiduciary standards. The service suite spans wealth management, financial planning, tax strategy, liquidity and exit planning, and private capital access.

Cresset has earned recognition from Barron's, Forbes, and Crain's Chicago Business. Entrepreneurs approaching a business sale benefit from Cresset's pre-transaction planning, which coordinates exit timing with trust formation to capture the state's tax advantages before a liquidity event.

ECM Family Office

ECM requires $20 million or more in asset value, placing it squarely in the UHNW segment. The firm's breadth stands out: it acts as outsourced chief investment officer, reviews private placements and private equity opportunities, and advises on alternative assets. ECM also serves on PFTC boards, sits on investment committees, and acts as trust protector.

This blend of fiduciary roles and advisory under one independent, fee-based roof makes ECM one of the few South Dakota firms that can handle both oversight and portfolio management for a single family. The firm covers estate planning, tax, accounting, and bill paying alongside its capital deployment work.

Compound Family Offices

Conflict-free advice defines Compound's model. The firm is SEC-registered and fee-only, meaning it earns no commissions and holds no proprietary products. Compound partners with Charles Schwab for custody (Schwab holds $3.72 trillion in client assets as the largest custodian for independent advisors) and with National Advisors Trust Company for corporate trustee needs.

National Advisors Trust administers $12 billion in total assets and is regulated by the OCC. Compound focuses on compounding returns over time while minimizing drawdowns. This philosophy suits families prioritizing long-term wealth preservation over aggressive growth.

First Covenant Trust

No other South Dakota private wealth office matches First Covenant's service catalog. The firm handles dynasty trust planning, offshore and transnational trust structures, special needs planning, charitable trusts, and life insurance trust funding. It also offers bitcoin multi-institution custody, aircraft and yacht management, and concierge services.

Family governance sits at the center of its model, including family constitutions, mission statements, and age-appropriate financial education for younger generations. First Covenant operates as directed trustee and provides back-office support for individual trustees. Families with diverse asset holdings, from crypto to fine art, will find First Covenant's breadth difficult to match elsewhere in the state.

Corient Trust Company of South Dakota

Corient builds its entire model around the directed trust structure. Its capabilities include dynasty trusts, purpose trusts, quiet trusts, and asset protection trusts. The directed trust separates administrative duties from capital deployment and distribution decisions, allowing families to appoint different advisors for each function.

Corient handles the compliance and administrative layer while family-selected managers and distribution advisors retain their roles. For families with established advisor relationships who want South Dakota jurisdiction benefits without replacing their existing team, Corient's model is purpose-built.

Sterling Trustees

Sterling's real value lies in its outsourced family office platform, not just its South Dakota trust charter. The firm provides multi-custodian aggregated reporting, outsourced portfolio oversight, and tax planning coordination. Families that want to maintain their own advisors and accountants can plug Sterling in as the trust administration layer.

This hybrid model reduces operational costs while preserving the family's control over decisions. Sterling's cloud-based reporting platform consolidates data from multiple custodians into a single view. This feature is especially relevant for families using directed trust structures with several advisors.

Creative Planning

Creative Planning's Sioux Falls office brings family office services to a broader audience than most firms on this list. With a minimum of $500,000 in investable assets, it serves families who may not yet qualify for a dedicated MFO. The service menu covers portfolio management, tax planning, estate planning, charitable planning, risk management, family decision-making, outsourced accounting, and bill pay.

Creative Planning is headquartered in Overland Park, Kansas, but maintains its Sioux Falls presence to serve the South Dakota trust market. Families in the early stages of wealth accumulation can access institutional-quality planning without committing to a higher-threshold provider.

WillKate

WillKate fills a unique niche as a family enterprise office with a specialty in agricultural and farm legacy planning. Its six-element framework covers financial, heritage and values, human talent, structural, family, and community dimensions of wealth. This approach reflects the reality that many South Dakota families built their wealth in agriculture, ranching, or food production.

Succession planning in these industries involves both the family business and the family itself. WillKate works on the emotional and relational aspects of generational transitions, areas that traditional financial advisory firms rarely address. Business owners navigating ownership versus management questions will find WillKate's family coaching model distinctive.

Sequoia Sentinel Family Office

Sequoia Sentinel started as the family office for its own founding families, then expanded to serve external UHNW clients. The firm covers the full cycle from pre-transaction planning through estate planning, trustee support, risk management, and family education. Its "Built for You" approach pairs institutional resources with a boutique experience.

Sequoia Sentinel works with both multi-family office and single family office (SFO) clients, offering flexibility in engagement scope. Families seeking one point of coordination for banking, lending, portfolio reporting, income tax planning, and insurance oversight can consolidate through Sequoia Sentinel's platform.

Allocation Trends Shaping South Dakota's Wealth Market

Directed Trust Demand and Advisor Flexibility

Directed trusts have become the defining structure for families entering South Dakota. These trusts separate administrative duties from portfolio and distribution authority, letting families appoint their existing advisors for capital decisions while a South Dakota trustee handles compliance. Corient, Trident Trust, and SDTC all build their service models around this framework.

Trident Trust's South Dakota office, led by Pete Randazzo, coordinates multi-advisor estate plans where several specialists each manage a defined piece of the trust. This structure appeals to families who want jurisdictional benefits without disrupting existing advisor relationships.

Private Family Trust Company Formation

PFTC formation is accelerating as families seek control without personal liability. South Dakota's capital requirements for PFTCs are the lowest in the nation, and SDTC alone manages $82 billion in PFTC relationships. The LLC wrapper lets family members serve as directors, committee members, and trust protectors without fiduciary exposure.

ECM Family Office actively serves on PFTC boards and committees. This makes ECM a go-to partner for families building these entities in the state.

Cross-Border Capital Flows into South Dakota Trusts

International families from 54 countries now use South Dakota trust structures, representing 15% of SDTC's client base. These families choose the state over traditional offshore jurisdictions for its combination of asset protection, privacy statutes, and zero state income tax. The ability to create quiet trusts, which shield beneficiary information, adds appeal for non-US families concerned about disclosure in their home countries.

Private Equity and Alternative Asset Advisory

ECM and Cresset both offer private equity review, private placement sourcing, and alternative asset advisory as standard services. South Dakota families, many of whom built wealth through operating businesses, tend to favor direct investments and co-investment opportunities over passive fund allocations. ECM's capability to structure the purchase or liquidation of illiquid assets is relevant for families holding concentrated positions in private companies or real estate.

Outsourced and Hybrid Family Office Models

Not every family needs a full-service MFO. Sterling Trustees and National Advisors Trust Company enable families to outsource specific functions (trust administration, reporting, tax preparation) while retaining in-house control over portfolios. This hybrid approach reduces costs and regulatory burden.

Sterling's cloud-based multi-custodian platform serves families who use three or four advisors under a directed trust structure and need consolidated performance reporting. Compound's Schwab partnership offers a similar single-view solution for families seeking fee-only advisory with institutional custody.

How to Choose a Wealth Manager in This Market

South Dakota's trust-centric market demands evaluation criteria different from those in New York or California. The first question is trust law expertise: verify whether the firm has hands-on experience structuring dynasty trusts, directed trusts, PFTCs, asset protection trusts, and decanting. A firm that primarily manages portfolios but lacks trust formation capability will leave gaps in a state where trust structure is the primary value proposition.

Fiduciary status matters more here because the state attracts both fiduciary advisors and commission-based firms. Cresset operates under its True Fiduciary standard. ECM and Compound are independent, fee-only fiduciaries. In a market built on trust structuring, conflicts of interest in product selection can undermine the legal protections the trust was designed to provide.

Directed trust capability is a practical litmus test. If you plan to keep your current advisor while moving trust situs to South Dakota, confirm that the firm can operate as a directed trustee. Corient, Trident, and SDTC specialize in this model. Firms that require you to use their in-house team may not fit a directed structure. ECM's ability to serve simultaneously on a PFTC board, committee, and as trust protector is rare and worth evaluating for families forming new private trust companies.

Technology matters in this market specifically because directed trusts often involve multiple custodians and advisors. Confirm that the firm offers aggregated multi-custodian reporting. Sterling Trustees and Compound (through its Schwab partnership) both provide consolidated views. Without this capability, families face fragmented data and slower decision-making.

Watch for red flags specific to South Dakota: proprietary products that conflict with fiduciary obligations, inability to accommodate directed trust structures, and family members serving as individual trustees without the liability protection of an LLC wrapper. The state's PFTC rules exist precisely to solve this last problem.

Which Family Office Fits Your Needs?

UHNW families with $20 million or more seeking a single point of coordination should evaluate ECM for its OCIO services, PFTC board roles, and alternative asset advisory. Cresset Capital offers a national footprint and private capital access through 20+ offices. Both operate as fiduciaries, but ECM requires a higher asset threshold while Cresset offers broader geographic reach.

Families headquartered outside South Dakota who want trust jurisdiction benefits without relocating have several options. SDTC handles trust administration for 120+ billionaire families who live elsewhere. Sterling Trustees provides outsourced administration with multi-custodian reporting. Trident Trust coordinates directed structures for families with multiple advisors. These firms let you keep your existing managers and tax advisors while placing trust situs in the state.

Business owners and entrepreneurs face a different decision. Those planning a liquidity event should look at Cresset's pre-transaction planning or ECM's succession strategy work. Agricultural families and ranching estates will find WillKate's farm legacy planning and family enterprise coaching unique in this market.

First Covenant Trust covers families with complex or unusual assets, from offshore trusts to bitcoin custody. For families earlier in their wealth journey, Creative Planning opens at $500,000 in investable assets, providing estate planning, tax, and portfolio management without a multimillion-dollar minimum.

Methodology

This guide to family offices in South Dakota draws on SEC filings, firm websites, South Dakota Division of Banking records, industry trust rankings, and FDIC data. Offices were selected based on their physical presence in South Dakota or active use of the state's trust jurisdiction to serve clients. Evaluation considered fiduciary status, service breadth, trust structuring expertise, independence from large financial institutions, and stated client focus. AUM and asset figures appear only where publicly disclosed by the firm. Data reflects information available as of early 2026. Families should verify current service offerings, fee structures, and minimum thresholds directly with each office before engaging.