Firms, funds, partners, companies and rounds from sworn filings, firm sites and announcements, kept as a graph with a date and a source on every edge. Facts, inferences and estimates are labelled as such. A fund target is never a close, GAV is never dry powder, and a round size is never an investor’s check.

Firms / Halcyon Investment Management, LLC

Halcyon Investment Management, LLC

Micro VC · probableWashington, DChalcyonhouse.orgSEC exempt reporting adviser

venture manager, reported GAV $5.0M across 2 vehicles

Importance
8
low
Active deployment
25
moderate
Emerging
0
low
Completeness
63
high
Freshness
100
high
Research priority
8
low
Identity and regulatory footprint
Headquarters
Washington, DCadviserinfo.sec.gov
Office address
3400 PROSPECT STREET NW, Washington, DC, 20007adviserinfo.sec.gov
Business phone
202-796-4233adviserinfo.sec.gov
SEC adviser type
exempt reporting adviseradviserinfo.sec.gov
SEC exemption claimed
unknown
Latest Form ADV
Mar 7, 2024
Private funds reported
1 (1 venture capital funds)adviserinfo.sec.gov
Private fund gross assets
$5.0Madviserinfo.sec.govreported GAV of the funds, the adviser's own number; not fund size, not dry powder
Owners on Schedule A
Halcyon House (Owner), E
business phone
202-796-4233adviserinfo.sec.govpublished by the subject
Stated thesis versus observed behaviour
no observed deals yet
Stated (the firm’s website)
Sectors
ai, healthcare, climate, energy, space, data infrastructure, edtech, logistics, industrial, hrtech
Stages
early
Geography
africa, global, latam, washington, dc
Check size
not stated; DFX does not estimate checks from round sizes
Observed (from deals on record)
Stage at participation: no observed deals yet
Stage at first entry: no observed deals yet
Sectors: no observed deals yet
lead rate n/afollow-on rate n/anew logos, 12 months 0
Funds and vehicles
2 reported
VehicleTypeVintageLifecycleReported GAVOwnersForm D soldLatest Form D
Halcyon Fund II LPFund2024 form d first saleEarly deploymentunknownunknown$5.0M
of $50.0M
Feb 13, 2024
Halcyon Fund, L.P.Fund2019 form d first saleMature$5.0M
Mar 7, 2024
20$2.9M
of $6.0M
Apr 22, 2019
GAV is the gross asset value the adviser reported on Form ADV for the vehicle, never the fund’s committed size and never dry powder. Form D sold is the amount sold as of the latest filing, never a final close.
Investment team
15 current, 1 departed
Alexis Kartalian
Senior Coordinator, Portfolio & Community
Platform and operations
1 departed (kept with end dates)
  • Ryan Daniel Ross · Co-Managing Director, Principal · Mar 1, 2019 to Mar 31, 2022 Inference
Investments on record
0 edges, 0 companies, 0 partner-attributed
No investment on record yet. Edges arrive from the firm’s portfolio page, financing announcements, and Form D board seats.
Co-investors
0 relationships from shared deals, counted for the whole firm
No co-investor relationship yet: these are derived only from rounds and portfolio listings the graph has seen both investors on.
Limited partners
0 disclosed
No LP commitment on record. An LP edge needs a public disclosure with a quote: a pension report (see Limited partners for the plans read), a fund announcement naming the LP, or a Form ADV owner. The fund page carries the LP’s reported performance.
Timeline
6 dated events
  1. Mar 31, 2022
    Ryan Daniel Ross (Co-Managing Director, Principal) no longer on Schedule A of Halcyon Investment Management, LLC
  2. Jan 1, 2021
    Dahna Rebecca Goldstein joined Schedule A of Halcyon Investment Management, LLC as Director Of Impact Investing
  3. Mar 27, 2019
    Halcyon Investment Management, LLC first filed Form ADV (ERA)
  4. Mar 27, 2019
    Halcyon Fund, L.P. first reported on Form ADV by Halcyon Investment Management, LLC (Venture Capital Fund), GAV $2,870,000
  5. Mar 1, 2019
    Katherine Isabella Goodall joined Schedule A of Halcyon Investment Management, LLC as Co-Managing Director
  6. Mar 1, 2019
    Ryan Daniel Ross joined Schedule A of Halcyon Investment Management, LLC as Co-Managing Director, Principal
Classification history
  1. Sep 12, 2026
    Micro VC (probable, 80%, cls-1)
    venture manager, reported GAV $5.0M across 2 vehicles
  2. Sep 12, 2026
    Micro VC (probable, 80%, cls-1)
    venture manager, reported GAV $5.0M across 1 vehicles
Evidence
29 observations from 2 sources
Every observation behind this profile, with its source, date and class
FactValueEffectiveClassSource
SEC adviser typeexempt_reporting_adviserMar 7, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
First Form ADV filing2019-03-27Mar 7, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Adv history loadedadv-hist-1Sep 12, 2026FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Latest Form ADV filing2024-03-07Mar 7, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Venture share of reported funds1Mar 7, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Business phone202-796-4233Mar 7, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Contact page urlhttps://halcyonaccelerator.org/wp-content/plugins/contact-form-7/includes/css/styles.css
contact page linked from the home page
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
HeadquartersWashington, DCMar 7, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Office address3400 PROSPECT STREET NW, Washington, DC, 20007Mar 7, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Legal formLimited Liability CompanyMar 7, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Portfolio pagehttps://halcyonaccelerator.org/founders/
0 entries read
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Private funds reported1Mar 7, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Private fund gross assets (reported)$5.0MMar 7, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Stated geographyafrica,global,latam,washington, dc
geography words on the home page
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Stated sectorsai,healthcare,climate,energy,space,data_infrastructure,edtech,logistics,industrial,hrtech
sector words on the home page
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Stated stagesearly
stage words on the home page
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Team pagehttps://halcyonaccelerator.org/about/team/
13 name/title pairs read
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Venture funds reported1Mar 7, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Websitehttps://www.halcyonhouse.org/investing/halcyon-fund/Mar 7, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Website resolved domainhalcyonaccelerator.org
https://halcyonhouse.org/ redirected to https://halcyonaccelerator.org/
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Website resolved domainhalcyonaccelerator.org
https://halcyonhouse.org/ redirected to https://halcyonaccelerator.org/
Sep 14, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Site titleHome | Halcyon
title tag
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)