State list
This Washington family office list contains 21 firms, including 13 single-family offices and 8 multi-family offices. Seattle is the most represented city, followed by Bellevue and Bainbridge Island, with records also in Spokane and Mercer Island. Technology is the most frequently listed focus, followed by private equity and real estate. Financial services, commercial real estate and venture capital also appear, alongside print media and broadcasting and television. This mix gives founders, fund managers, investors and advisors several angles for initial research, from technology and venture investment to property and financial services. The profile tags are a starting point, not confirmation of a current mandate or check size. Review each firm’s public information, consider the location and stated interests, and verify fit before approaching. AUM is disclosed for 7 firms, so other profile details may be useful when comparing the broader set.
Public firm-level fields only. Contact details are withheld. Order follows disclosed assets under management where available, then profile depth. It is not a ranking.
Cowles Company is a family-owned enterprise that operates businesses and invests in growth companies. Its activities span media, forestry, real estate, and early-stage growth investments.
Keiretsu Family Office provides family office structuring services and access to deal flow, resources, and educational content. Its affiliated network and fund partner support angel co-investment and real estate funds.
Onelin Capital Corporation is a multi-asset strategy single family office affiliated with a global investment conglomerate. It invests across venture capital, funds, debt, and real estate, with stated industry interests in real estate, technology, and financial services.
Graham Capital Group is a single-family office formed to acquire and partner with traditional small- to middle-market companies and their management teams. Its stated area includes commercial real estate development.
Tapestry Associates manages non-financial assets and complex projects for families. Its services address the operational, lifestyle, and planning needs associated with assets such as real estate, art, vehicles, yachts, and aircraft.
Harmony Capital is a Pacific Northwest single-family office investing across asset classes. Its current holdings include industrial real estate and companies in education, energy, and biotechnology.
The Clarius Group is a shared family office that provides investment advisory, wealth management, and family office services to families and individuals.
The Toba Group is a single family office that oversees family holdings in real estate, publishing, communications, and other ventures.
McCutchen Group is an independent multi-family office providing investment and financial advisory services to private clients.
Schultz Capital Partners is a single-family office for the Schultz family. The source text does not specify its investment activities.
Ballmer Group is a family office that manages wealth and supports economic mobility for children from low-income families.
Bristlecone Advisors is an independent investment advisory firm and multi-family office providing personalized advice and solutions. Its stated investment areas include hedge funds, private equity, and impact investments.
Parcion Private Wealth is a multi family office and wealth management firm serving business owners, entrepreneurs and families. Its services include investment management, tax planning, cash flow, wealth transfer, asset protection and charitable giving.
Avantia is a multi-family office providing investment management and financial advice to individuals, families, and institutions. Its services include investing, banking, capital advisory, tax, trusts, estate planning, and philanthropy.
Aletheian Wealth Advisors is a multi-family office serving families with estate planning and asset management needs. Its services include wealth planning, investment management and support with family enterprise and legacy planning.
Bezos Expeditions manages personal investments across early- and later-stage ventures. Its holdings also include a newspaper, space projects, and a family foundation.
Rule Family Office manages private capital and invests in debt and equity interests issued by publicly quoted natural resource and financial services companies. Its investment activity has included public and private issuers in natural resource industries.
Hoban Family Office invests directly in real estate, operating businesses, private equity, and angel opportunities. Its strategy includes co-investments and direct investments intended to support long-term capital preservation and growth.
Zen Capital Partners is a single-family office investing in real estate, technology startups, and selected venture capital and private equity funds. It also operates an educational philanthropy supporting first-generation, low-income college students.
Capital6 manages investments for a family and focuses on traditional private equity, the permissionless future, and arts and culture. Its stated areas also include venture capital, real estate, technology, and private markets.
Cascade Asset Management Company is the private holding company of the Gates family. It invests in public equities, fixed income and alternative markets in the United States, and also makes venture capital investments.
340 events hosted since 2007, from summits to small workshops.
The page lists 21 firms: 13 single-family offices and 8 multi-family offices. The figures describe the records in this state list. Office type alone does not indicate whether a firm reviews outside opportunities or invests in a particular structure.
Seattle has 9 listed firms and Bellevue has 5. Technology appears as a focus for 6 firms, followed by private equity and real estate. Other recorded tags include financial services, commercial real estate and venture capital. These counts reflect database profiles rather than active mandates.
Use the public profile to identify a clear point of relevance, then send a concise note describing your company or fund, its stage and geography, and the opportunity or capital sought. Ask whether the firm reviews external proposals. A sector tag is useful context but does not confirm current interest.
AUM is disclosed for 7 of the 21 firms. The free page shows public firm-level information and withholds contact details. A disclosed AUM figure is not the same as an available allocation or check size, and the list should be treated as a research aid.
The full list is available by request through the form and adds contact data, decision makers and check size fields. These additions can help focus research and outreach across the state. No introductions, funding or outcomes are promised.
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