DFX Intelligence
Family Office Intelligence
A continuously maintained graph of U.S. family offices: identity, team, observed investments, public holdings, relationships and dated signals of change. Facts, inferences and estimates are labelled as such, with the source and the date, on every row. Unknown is printed as unknown.
Family office profile
Maelstrom
Why this class: a filing by a third party describes it as a single family office (cited).
Verified Sep 16, 2026 (2 days ago)
Last observed Sep 16, 2026 · 23 observations · 4 sources
8 people · 32 investments · 0 public positions · 4 events
Identity
70
high
Data depth
75
high
Freshness
100
high
Active deployment
100
high
Direct investing
85
high
External managers
0
low
Private markets
0
low
Sponsor-friendly
0
low
Real estate
0
low
Co-investment
100
high
Contactability
60
high
Mandate confidence
100
high
Twelve separate dimensions, each 0 to 100 from listed components. There is no single family office score; the components are in the evidence section.
Overview
Profile completeness 53% (high value, high value deep; the most valuable missing fact is mandate)
identityclassificationwealth origincapital-scale evidencepeoplecontactsmandatedirect investmentsfund relationshipsco-investorssponsor relationshipsreal estatepublic holdingsrecent eventsprovenancefreshness
- Classification
- Single family office (probable)
- Description
- Maelstrom -
- Headquarters
- unknown
- Office address
- unknown
- Business phone
- unknown
- Website
- maelstrom.fund
- Year established
- unknown
- Assets under management
- unknown
- Capital scale
- Reported office AUM: unknown. No public number of any kind.
Classification history
- Sep 14, 2026Single family office (probable) 70%a filing by a third party describes it as a single family office (cited)Fact
- Sep 14, 2026Candidate 25%no rule matched; held as a candidate pending researchInference
Family and wealth origin
- Family served
- Hayes family
- Source of wealth
- Arthur Hayes co-founded the BitMEX cryptocurrency derivatives exchange
- Operating company origin
- unknown
Team
| Person | Title | Responsibility | Business contact | Source |
|---|---|---|---|---|
| Arthur Hayes family | CIO and Co-Founder | Chief investment officer · investment decisions | none on record | maelstrom.fund Fact |
| Arthur Hayes | CIO | Chief investment officer | none on record | sec.gov Fact |
| Bitcoin Grant Program | Arthur Hayes, CIO and Co-Founder | Chief investment officer · investment decisions | none on record | maelstrom.fund Fact |
| Akshat Vaidya | Managing Partner & Co-Founder | Leadership · investment decisions | none on record | maelstrom.fund Fact |
| Milan Thakkar | Head of Investor Relations & Operations, Maelstrom Equity | Operations and finance · investment decisions | none on record | maelstrom.fund Fact |
| Lukas Ruppert | Research Analyst | Other · investment decisions | none on record | maelstrom.fund Fact |
| Adam Schlegel | Partner, Maelstrom Equity | Private equity · investment decisions | email: adam@maelstrom.fund (verified by provider, Sep 15, 2026) | maelstrom.fund Fact |
| Nick Andrianov | Partner, Maelstrom Liquid | Public markets · investment decisions | none on record | maelstrom.fund Fact |
Office contact points
Investment mandate
Stated (their words, cited)
No cited statement of mandate on the record.
Observed (from the investment record)
No investments on the record yet, so nothing is observed.
Inferred (regulatory shape and team)
Nothing to infer from.
- Invests directly
- Backs high-conviction opportunities from early-stage equity and token investments to private and public market positions
- Allocates to managers
- unknown
- Asset classes
- unknown
- Sectors
- Portfolio of roughly 32 companies concentrated in crypto/blockchain infrastructure, DeFi, restaking and web3 tooling
- Geography
- unknown
- Check size
- $40.0M to $75.0M
Direct investments
| Date | Company | Kind | Sector | Role | Amount | With | Source |
|---|---|---|---|---|---|---|---|
| Apr 14, 2026 | Paxos | Round participation | unknown | participant · minority | unknown round $12.0M | Blockchain Capital (co investor), Robot Ventures (co investor), Uniswap (co investor) | prnewswire.com Fact “NEW YORK , April 14, 2026 /PRNewswire/ -- Paxos Labs, the financial utility stack for digital assets incubated within Paxos, today announced” |
| Jan 12, 2026 | Neuramint | Round participation | unknown | participant · minority | unknown round $5.0M | Web3 (co investor), AI-focused investment firms (co investor), Borderless Capital (co investor), Selini Capital (co investor), Symbolic Capital (co investor), Lattice Fund (co investor), Node Capital (co investor) | prnewswire.com Fact “The round attracted participation from leading Web3 and AI-focused investment firms, including Maelstrom, Borderless Capital, Selini Capital” |
| Jul 29, 2025 | ARO Network | Round participation | unknown | participant · minority | unknown round $2.1M | NoLimit Holdings (co investor), Dispersion Capital (co investor), Escape Velocity (co investor) | globenewswire.com Fact “The round was led by NoLimit Holdings and Dispersion Capital , with participation from Escape Velocity , Maelstrom , and strategic angels.” |
| n/a | Spot | Portfolio investment | DeFi UX | unknown | unknown | none named | maelstrom.fund Fact “Abstracting away numerous complexities for retail users to interact with DeFi” |
| n/a | Bilby | Portfolio investment | regtech | unknown | unknown | none named | maelstrom.fund Fact “Enabling businesses, funds and other organizations to predict and capitalize on forthcoming regulatory changes” |
| n/a | Upside | Portfolio investment | content monetization | unknown | unknown | none named | maelstrom.fund Fact “Unlocking new ways to monetize the internet” |
| n/a | Perena | Portfolio investment | stablecoin liquidity | unknown | unknown | none named | maelstrom.fund Fact “Unifying stablecoin liquidity” |
| n/a | Time.fun | Portfolio investment | tokenization | unknown | unknown | none named | maelstrom.fund Fact “Pioneering a new asset class by tokenizing human time” |
| n/a | Solayer | Portfolio investment | Solana restaking | unknown | unknown | none named | maelstrom.fund Fact “Enhancing Solana's base layer security” |
| n/a | Cytonic | Portfolio investment | blockchain infrastructure | unknown | unknown | none named | maelstrom.fund Fact “Pioneering a new paradigm in blockchain infrastructure” |
| n/a | Khalani | Portfolio investment | cross-chain liquidity | unknown | unknown | none named | maelstrom.fund Fact “Unifying liquidity across all blockchain networks” |
| n/a | Gun.fun | Portfolio investment | trade execution | unknown | unknown | none named | maelstrom.fund Fact “Minimizing transaction costs, and improving trader UX with intent-centric order execution” |
| n/a | Juice Finance | Portfolio investment | cross-margin lending | unknown | unknown | none named | maelstrom.fund Fact “Enabling holders of ETH to earn enhanced natural yield through cross-margin lending” |
| n/a | Init Capital | Portfolio investment | DeFi liquidity | unknown | unknown | none named | maelstrom.fund Fact “Supercharging new DeFi protocols' ability to overcome the liquidity cold start problem” |
| n/a | OYL | Portfolio investment | bitcoin wallet/swap | unknown | unknown | none named | maelstrom.fund Fact “Revolutionizing how users interact with all things bitcoin” |
| n/a | Rio Network | Portfolio investment | liquid restaking | unknown | unknown | none named | maelstrom.fund Fact “Pioneering liquid restaking” |
| n/a | Squid Router | Portfolio investment | cross-chain interoperability | unknown | unknown | none named | maelstrom.fund Fact “Enabling dApps to easily augment product offerings” |
| n/a | D3 | Portfolio investment | web3 domain names | unknown | unknown | none named | maelstrom.fund Fact “Bringing defensibility, security and interoperability to web3 domain names” |
| n/a | Ethena | Portfolio investment | decentralized money protocols | unknown | unknown | none named | maelstrom.fund Fact “Solving scalability limitations of existing decentralized money protocols” |
| n/a | Pendle Finance | Portfolio investment | interest rate derivatives | unknown | unknown | none named | maelstrom.fund Fact “Unleashing the potential of the interest rate derivative market in crypto” |
| n/a | Ion Protocol | Portfolio investment | restaked ETH liquidity | unknown | unknown | none named | maelstrom.fund Fact “Dramatically expanding use cases, liquidity and capital efficiency of nonfungible staked/restaked ETH” |
| n/a | Rated Network | Portfolio investment | staking analytics | unknown | unknown | none named | maelstrom.fund Fact “Underpinning a generation of new staking business models” |
| n/a | Term Finance | Portfolio investment | DeFi fixed-rate lending | unknown | unknown | none named | maelstrom.fund Fact “Bringing institutional-grade scalability and usability to DeFi fixed-rate lending” |
| n/a | Noxx | Portfolio investment | payroll/compliance | unknown | unknown | none named | maelstrom.fund Fact “Unleashing the future of work with zkp-based payroll/compliance infrastructure” |
| n/a | Quasar | Portfolio investment | DeFi liquidity | unknown | unknown | none named | maelstrom.fund Fact “Breaking down digital asset liquidity silos with noncustodial, interchain DeFi” |
| n/a | Ether.fi | Portfolio investment | liquid staking | unknown | unknown | none named | maelstrom.fund Fact “Pioneering genuinely trustless delegated node operation” |
| n/a | Nillion | Portfolio investment | secure multi-party computation | unknown | unknown | none named | maelstrom.fund Fact “Breaking the speed-barrier of legacy 'secure multi-party computation' technology” |
| n/a | Auki Labs | Portfolio investment | geospatial/AR | unknown | unknown | none named | maelstrom.fund Fact “Solving limitations of existing geospatial positioning and AR technologies” |
| n/a | Aethir | Portfolio investment | GPU/cloud rendering | unknown | unknown | none named | maelstrom.fund Fact “Breaking the real-time rendering bottleneck facing streamed gaming content” |
| n/a | Hyperline | Portfolio investment | data infrastructure | unknown | unknown | none named | maelstrom.fund Fact “Lowering cost barriers to producing next-generation, data-powered products” |
| n/a | Obol | Portfolio investment | proof-of-stake infrastructure | unknown | unknown | none named | maelstrom.fund Fact “Decentralizing single points of failure in proof-of-stake networks” |
Fund and manager relationships
No fund commitment or manager relationship on the record. Commitment amounts are shown only when public.
Public stakes and holdings
Stakes the office filed (Schedule 13D, 13G, Section 16)
From EDGAR's index of the office's own filings. A 13D is a stake of 5% or more held with intent, a 13G one held passively, a Form 3, 4 or 5 the office as an insider of the issuer. The size of the stake is inside each filing and is not shown here.
| First filed | Issuer | Filed as | Filings |
|---|---|---|---|
| Aug 12, 2025 | Upexi | Section 16 insider | With our culture of innovation and unique position at the intersection of cryptocurrencies and traditional finance, there is no more fitting inaugural member than Arthur Hayes.” “Maelstrom, an investment fund focused on digital assets, backed Upexi months ago due to its clear treasury model expertise, deep connectivity to traditional finance, and a risk-conscious strategy designed to maximize value while resonating with a broad spectrum of investors,” said Arthur Hayes. globenewswire.com |
Form 13F holdings
No 13F filing on the record for this office.
Real estate
No documented real estate ownership link. A property is attributed to an office only through a documented control relationship, never from a surname.
Co-investors
| Counterparty | Kind | Shared deals | First, last | Examples | Source |
|---|---|---|---|---|---|
| Robot Ventures | organisation | 1 | Apr 14, 2026 | Paxos | prnewswire.com |
| Blockchain Capital | organisation | 1 | Apr 14, 2026 | Paxos | prnewswire.com |
| Uniswap | organisation | 1 | Apr 14, 2026 | Paxos | prnewswire.com |
| Selini Capital | organisation | 1 | Jan 12, 2026 | Neuramint | prnewswire.com |
| AI-focused investment firms | organisation | 1 | Jan 12, 2026 | Neuramint | prnewswire.com |
| Borderless Capital | organisation | 1 | Jan 12, 2026 | Neuramint | prnewswire.com |
| Web3 | organisation | 1 | Jan 12, 2026 | Neuramint | prnewswire.com |
| Symbolic Capital | organisation | 1 | Jan 12, 2026 | Neuramint | prnewswire.com |
| Lattice Fund | organisation | 1 | Jan 12, 2026 | Neuramint | prnewswire.com |
| Node Capital | organisation | 1 | Jan 12, 2026 | Neuramint | prnewswire.com |
| NoLimit Holdings | organisation | 1 | Jul 29, 2025 | ARO Network | globenewswire.com |
| Dispersion Capital | organisation | 1 | Jul 29, 2025 | ARO Network | globenewswire.com |
| Escape Velocity | organisation | 1 | Jul 29, 2025 | ARO Network | globenewswire.com |
- Uniswap Apr 14, 2026 recurring (2) Fact prnewswire.com
- Robot Ventures Apr 14, 2026 recurring (2) Fact prnewswire.com
- Blockchain Capital Apr 14, 2026 recurring (2) Fact prnewswire.com
- Uniswap Apr 14, 2026 recurring (2) Fact prnewswire.com
- Robot Ventures Apr 14, 2026 recurring (2) Fact prnewswire.com
- Blockchain Capital Apr 14, 2026 recurring (2) Fact prnewswire.com
- Node Capital Jan 12, 2026 recurring (2) Fact prnewswire.com
- Lattice Fund Jan 12, 2026 recurring (2) Fact prnewswire.com
- Symbolic Capital Jan 12, 2026 recurring (2) Fact prnewswire.com
- Selini Capital Jan 12, 2026 recurring (2) Fact prnewswire.com
- Borderless Capital Jan 12, 2026 recurring (2) Fact prnewswire.com
- AI-focused investment firms Jan 12, 2026 recurring (2) Fact prnewswire.com
- Web3 Jan 12, 2026 recurring (2) Fact prnewswire.com
- Node Capital Jan 12, 2026 recurring (2) Fact prnewswire.com
- Lattice Fund Jan 12, 2026 recurring (2) Fact prnewswire.com
- Symbolic Capital Jan 12, 2026 recurring (2) Fact prnewswire.com
- Selini Capital Jan 12, 2026 recurring (2) Fact prnewswire.com
- Borderless Capital Jan 12, 2026 recurring (2) Fact prnewswire.com
- AI-focused investment firms Jan 12, 2026 recurring (2) Fact prnewswire.com
- Web3 Jan 12, 2026 recurring (2) Fact prnewswire.com
- Escape Velocity Jul 29, 2025 recurring (2) Fact globenewswire.com
- Dispersion Capital Jul 29, 2025 recurring (2) Fact globenewswire.com
- NoLimit Holdings Jul 29, 2025 recurring (2) Fact globenewswire.com
- Escape Velocity Jul 29, 2025 recurring (2) Fact globenewswire.com
- Dispersion Capital Jul 29, 2025 recurring (2) Fact globenewswire.com
- NoLimit Holdings Jul 29, 2025 recurring (2) Fact globenewswire.com
Independent sponsor relationships
No cited relationship to an independent sponsor.
Signals and timeline
Most significant first: what kind of change it is, its size, whose change it is, and how recent. 4 events. 13F position changes are under Public stakes and holdings.
- Mar 27, 2026Office discoveredMaelstrom described on SEC filings as 'family office' (10-K, 424B4, 8-K, S-1/A)DiscoveryFactsec.gov
- Sep 14, 2026Classification changedMaelstrom: CANDIDATE_FAMILY_OFFICE -> PROBABLE_SFO (a filing by a third party describes it as a single family office (cited))ClassificationFactno URL
- Oct 17, 2025New investment vehicleMaelstrom targets $250 million for a debut private equity fund, Maelstrom Equity Fund I, to acquire crypto infrastructure firmsVehiclesFactcoindesk.com
- Jan 1, 2023Office formedArthur Hayes launches Maelstrom, his family office, into public viewOrganisationFacttheblock.co
Sources and evidence
Every observation behind this profile: the value, when it was effective, the source, the quote where there is one, and whether it is a fact, an inference or an estimate. 23 shown.
Score components
Freshness
+100 days since the newest source-dated fact or analyst verification (1 days)
Contactability
+40 named decision-makers (Arthur Hayes (CIO); Arthur Hayes (CIO and Co-Founder); Akshat Vaidya (Managing Partner & Co-Founder))
+20 verified business emails (2)
Data confidence
+10 website
+10 description
+10 stated mandate
+10 people
+15 investments
+20 independent sources (4 sources)
Active deployment
+75 dated private investments in last 24 months (Paxos (2026-04-14); Neuramint (2026-01-12); ARO Network (2025-07-29))
+25 a dated private investment in last 12 months (2026-04-14)
Exists confidence
+20 website
+30 independent sources (4 sources)
+30 analyst-verified
Research priority
+15 single family or family investment company
+15 direct investments on record
+10 deployed in last 24 months
+0 rank (54)
Mandate confidence
+70 mandate supported by observed investments
+20 stated mandate on the record
+10 check size stated ($40,000,000 to $75,000,000)
Identity confidence
+70 classification (PROBABLE_SFO (a filing by a third party describes it as a single family office (cited)))
Real estate propensity
no components; scored 0
Co investment propensity
+80 co-investors on the record (Escape Velocity; Robot Ventures; Dispersion Capital; Blockchain Capital; Escape Velocity)
+20 participant in syndicated rounds
Family identity confidence
+60 wealth origin or operating company on the record
+40 family named (Hayes family)
Private markets propensity
no components; scored 0
Current activity confidence
+50 dated private investment in 24 months
+25 a source-dated fact within 12 months (1 days)
External manager propensity
no components; scored 0
Direct investment propensity
+70 observed direct investments (32 on the record)
+15 direct investment professional on staff
Independent sponsor propensity
no components; scored 0
| Fact | Value | Effective | Source | Class |
|---|---|---|---|---|
| Asset allocation stated | Building a long-term portfolio across Venture, Liquid, Private Equity, and Public Markets “building a long-term portfolio across Venture, Liquid, Private Equity, and Public Markets” | Sep 16, 2026 | DFX analyst research (General-assisted, every claim URL-cited) maelstrom.fund | Fact |
| Asset allocation stated | Building a long-term portfolio across Venture, Liquid, Private Equity, and Public Markets “building a long-term portfolio across Venture, Liquid, Private Equity, and Public Markets” | Sep 15, 2026 | DFX analyst research (General-assisted, every claim URL-cited) maelstrom.fund | Fact |
| Aum stated | Raising $250 million for a debut private equity fund (Maelstrom Equity Fund I) “Arthur Hayes' family office, Maelstrom, is angling to raise $250 million for a debut private equity fund” | Oct 17, 2025 | DFX analyst research (General-assisted, every claim URL-cited) coindesk.com | Fact |
| Check size (high) | Plans to invest up to $75 million per deal in its new private equity fund “The fund plans to invest $40 million to $75 million per deal, acquiring up to six companies” | Oct 17, 2025 | DFX analyst research (General-assisted, every claim URL-cited) coindesk.com | Fact |
| Check size (low) | Plans to invest $40 million per deal in its new private equity fund “The fund plans to invest $40 million to $75 million per deal, acquiring up to six companies” | Oct 17, 2025 | DFX analyst research (General-assisted, every claim URL-cited) coindesk.com | Fact |
| Description | Managed by the family office of Arthur Hayes, co-founder of BitMEX “Managed by the family office of Arthur Hayes (co-founder, BitMEX).” | Sep 16, 2026 | DFX analyst research (General-assisted, every claim URL-cited) maelstrom.fund | Fact |
| Description | Maelstrom - | Sep 16, 2026 | Family office and investment company websites (about, team, portfolio, news pages) maelstrom.fund | Fact |
| Description | Managed by the family office of Arthur Hayes, co-founder of BitMEX “Managed by the family office of Arthur Hayes (co-founder, BitMEX).” | Sep 15, 2026 | DFX analyst research (General-assisted, every claim URL-cited) maelstrom.fund | Fact |
| Edgar fts discovery | family office | Mar 27, 2026 | SEC EDGAR full-text search (a filing sentence that says what an entity is, quoted with its URL) sec.gov | Fact |
| Family served | Hayes family | Apr 21, 2025 | SEC EDGAR full-text search (a filing sentence that says what an entity is, quoted with its URL) sec.gov | Fact |
| Formation year | 2023 “Hayes, co-founder of the Bitmex derivatives exchange, launched Maelstrom into public view in 2023.” | Oct 17, 2025 | DFX analyst research (General-assisted, every claim URL-cited) theblock.co | Fact |
| Invests directly | Backs high-conviction opportunities from early-stage equity and token investments to private and public market positions “high-conviction opportunities ranging from early-stage equity and token investments to private and public market positions” | Sep 16, 2026 | DFX analyst research (General-assisted, every claim URL-cited) maelstrom.fund | Fact |
| Invests directly | Backs high-conviction opportunities from early-stage equity and token investments to private and public market positions “high-conviction opportunities ranging from early-stage equity and token investments to private and public market positions” | Sep 15, 2026 | DFX analyst research (General-assisted, every claim URL-cited) maelstrom.fund | Fact |
| Office type (stated) | single_family_office | Mar 27, 2026 | SEC EDGAR full-text search (a filing sentence that says what an entity is, quoted with its URL) sec.gov | Fact |
| Sectors | Portfolio of roughly 32 companies concentrated in crypto/blockchain infrastructure, DeFi, restaking and web3 tooling “Pioneering a new paradigm in blockchain infrastructure” | Sep 16, 2026 | DFX analyst research (General-assisted, every claim URL-cited) maelstrom.fund | Inference |
| Sectors | Portfolio of roughly 32 companies concentrated in crypto/blockchain infrastructure, DeFi, restaking and web3 tooling “Pioneering a new paradigm in blockchain infrastructure” | Sep 15, 2026 | DFX analyst research (General-assisted, every claim URL-cited) maelstrom.fund | Inference |
| Site mentions | private_equity | Sep 16, 2026 | Family office and investment company websites (about, team, portfolio, news pages) maelstrom.fund | Fact |
| Team page url | https://maelstrom.fund/team/ | Sep 16, 2026 | Family office and investment company websites (about, team, portfolio, news pages) maelstrom.fund | Fact |
| Source of wealth | Arthur Hayes co-founded the BitMEX cryptocurrency derivatives exchange “co-founder of the Bitmex derivatives exchange” | Sep 15, 2026 | DFX analyst research (General-assisted, every claim URL-cited) theblock.co | Fact |
| Website | maelstrom.fund | Sep 15, 2026 | DFX model output (classification rules, scores, mandates, matches) maelstrom.fund | Inference |
| Website read | site-fo-3 | Sep 16, 2026 | Family office and investment company websites (about, team, portfolio, news pages) maelstrom.fund | Fact |
| Website search | not_found | Sep 14, 2026 | DFX model output (classification rules, scores, mandates, matches) no URL | Inference |
| Website title | Maelstrom | Sep 16, 2026 | Family office and investment company websites (about, team, portfolio, news pages) maelstrom.fund | Fact |