{
  "crd_number": 112442,
  "slug": "green-century-capital-management-inc-boston-ma-112442",
  "primary_business_name": "GREEN CENTURY CAPITAL MANAGEMENT INC",
  "legal_name": "GREEN CENTURY CAPITAL MANAGEMENT INC",
  "dbas": [],
  "city": "Boston",
  "state": "MA",
  "country": "United States",
  "cbsa_code": "14460",
  "metro": {
    "cbsa_code": "14460",
    "common_name": "Boston",
    "msa_name": "Boston-Cambridge-Newton, MA-NH",
    "path": "/advisors/ma/boston"
  },
  "registration_type": "sec",
  "registration_status": "Approved",
  "registration_date": "1991-08-15",
  "years_registered": 35,
  "period": "2026-10-01",
  "filing_date": "2026-09-30",
  "carried_forward": false,
  "raum_total": 1358315122.0,
  "raum_discretionary": 1358315122.0,
  "raum_non_discretionary": 0.0,
  "raum_band": "1b_5b",
  "raum_band_label": "$1 billion to $5 billion",
  "total_employees": 16,
  "advisory_employees": 6,
  "client_count_bucket": null,
  "clients_by_type": {
    "other": {
      "raum": 544185.0,
      "count": 1,
      "description": "PROPRIETARY ACCOUNT"
    },
    "charitable": {
      "raum": null,
      "count": 0
    },
    "individuals": {
      "raum": null,
      "count": 0
    },
    "banking_thrift": {
      "raum": null,
      "count": 0
    },
    "state_municipal": {
      "raum": null,
      "count": 0
    },
    "insurance_companies": {
      "raum": null,
      "count": 0
    },
    "investment_companies": {
      "raum": 1357770937.0,
      "count": 3
    },
    "pension_profit_sharing": {
      "raum": null,
      "count": 0
    },
    "other_investment_advisers": {
      "raum": null,
      "count": 0
    },
    "high_net_worth_individuals": {
      "raum": null,
      "count": 0
    },
    "pooled_investment_vehicles": {
      "raum": null,
      "count": 0
    },
    "corporations_other_businesses": {
      "raum": null,
      "count": 0
    },
    "business_development_companies": {
      "raum": null,
      "count": 0
    },
    "sovereign_wealth_foreign_official": {
      "raum": null,
      "count": 0
    }
  },
  "compensation_types": [
    "percentage_of_aum"
  ],
  "advisory_activities": [
    "portfolio_management_investment_companies",
    "selection_of_other_advisers"
  ],
  "wrap_fee_participant": false,
  "disclosure_yes_count": 0,
  "states_registered": [
    "CO"
  ],
  "websites": [
    "https://greencentury.com",
    "https://linkedin.com/company/green-century-capital-management",
    "https://x.com/GREEN__CENTURY",
    "https://youtube.com/@greencentury8312"
  ],
  "iapd_url": "https://adviserinfo.sec.gov/firm/summary/112442",
  "city_as_filed": "BOSTON",
  "url": "https://advisorcensus.com/firm/green-century-capital-management-inc-boston-ma-112442",
  "display_name": "Green Century Capital Management Inc",
  "summary": "Green Century Capital Management Inc is an SEC-registered investment advisory firm in Boston, MA, registered since 1991, reporting $1 billion to $5 billion in regulatory assets under management in its Form ADV filing dated September 30, 2026.",
  "citation": "AdvisorCensus. Green Century Capital Management Inc (CRD 112442): Form ADV filing data as of October 2026.",
  "registration_type_label": "SEC-registered investment adviser",
  "compensation_labels": [
    "A percentage of assets under your management"
  ],
  "advisory_activity_labels": [
    "Portfolio management for investment companies (and business development companies)",
    "Selection of other advisers (including private fund managers)"
  ],
  "quick_answers": [
    {
      "q": "How is Green Century Capital Management Inc compensated?",
      "a": "On its Form ADV (Item 5.E, October 2026), Green Century Capital Management Inc reports these compensation arrangements: a percentage of assets under its management. The amounts are in Item 5 of its Form ADV Part 2A brochure."
    },
    {
      "q": "Where is Green Century Capital Management Inc located?",
      "a": "Green Century Capital Management Inc's principal office is in Boston, MA, according to its Form ADV."
    },
    {
      "q": "Is Green Century Capital Management Inc registered with the SEC or a state?",
      "a": "Green Century Capital Management Inc is an SEC-registered investment advisory firm, registered since 1991. Status as filed: Approved. CRD 112442."
    },
    {
      "q": "How much does Green Century Capital Management Inc manage?",
      "a": "Green Century Capital Management Inc reports $1,358,315,122 in regulatory assets under management in its Form ADV filing dated September 30, 2026 (100% discretionary)."
    },
    {
      "q": "How have Green Century Capital Management Inc's assets and staff changed since 2021?",
      "a": "In the Form ADV data for Green Century Capital Management Inc: Regulatory assets under management: $1,053,780,845 in the October 2021 data and $1,358,315,122 in the October 2026 data, up 29%. Total employees: 13 in October 2021 and 16 in October 2026. Assets under management move with markets as well as with clients coming and going."
    },
    {
      "q": "What types of clients does Green Century Capital Management Inc serve?",
      "a": "By number of clients on Form ADV Item 5.D: investment companies (3); other (1)."
    },
    {
      "q": "Which custodians does Green Century Capital Management Inc use?",
      "a": "Green Century Capital Management Inc's most recent Form ADV filing (Schedule D, Section 5.K(3)) lists UMB Financial Services, Inc. as a custodian holding 10% or more of its separately managed account assets."
    },
    {
      "q": "Does Green Century Capital Management Inc report any disciplinary disclosures?",
      "a": "Reports no disclosure items on Form ADV Item 11. The detail of any item is on the firm's SEC record: https://adviserinfo.sec.gov/firm/summary/112442"
    }
  ],
  "filing_history": [
    {
      "period": "2021-10-01",
      "regulatory_assets_under_management": 1053780845.0,
      "total_employees": 13,
      "filing_date": "2021-09-07"
    },
    {
      "period": "2022-10-01",
      "regulatory_assets_under_management": 998345717.0,
      "total_employees": 11,
      "filing_date": "2022-09-22"
    },
    {
      "period": "2023-10-01",
      "regulatory_assets_under_management": 1123846320.0,
      "total_employees": 13,
      "filing_date": "2023-09-26"
    },
    {
      "period": "2024-10-01",
      "regulatory_assets_under_management": 1284681138.0,
      "total_employees": 15,
      "filing_date": "2024-09-30"
    },
    {
      "period": "2025-10-01",
      "regulatory_assets_under_management": 1284681138.0,
      "total_employees": 15,
      "filing_date": "2024-09-30"
    },
    {
      "period": "2026-10-01",
      "regulatory_assets_under_management": 1358315122.0,
      "total_employees": 16,
      "filing_date": "2026-09-30"
    }
  ],
  "recent_changes": [],
  "fees_from_brochure": null,
  "custodians": [
    {
      "name": "UMB Financial Services, Inc.",
      "name_as_filed": "UMB FINANCIAL SERVICES, INC.",
      "affiliated": false
    }
  ],
  "custodians_note": "Custodians holding 10% or more of the firm's separately managed account assets, as filed on Form ADV (Schedule D, Section 5.K(3)). A custodian holds client assets; it does not endorse or supervise the firm. AdvisorCensus has no relationship with any custodian.",
  "markdown_url": "https://advisorcensus.com/firm/green-century-capital-management-inc-boston-ma-112442.md",
  "clients": [
    {
      "type": "individuals",
      "label": "Individuals (other than high net worth individuals)",
      "count": 0,
      "fewer_than_5": false,
      "raum": null
    },
    {
      "type": "high_net_worth_individuals",
      "label": "High net worth individuals",
      "count": 0,
      "fewer_than_5": false,
      "raum": null
    },
    {
      "type": "banking_thrift",
      "label": "Banking or thrift institutions",
      "count": 0,
      "fewer_than_5": false,
      "raum": null
    },
    {
      "type": "investment_companies",
      "label": "Investment companies",
      "count": 3,
      "fewer_than_5": false,
      "raum": 1357770937.0
    },
    {
      "type": "business_development_companies",
      "label": "Business development companies",
      "count": 0,
      "fewer_than_5": false,
      "raum": null
    },
    {
      "type": "pooled_investment_vehicles",
      "label": "Pooled investment vehicles (other than investment companies and business development companies)",
      "count": 0,
      "fewer_than_5": false,
      "raum": null
    },
    {
      "type": "pension_profit_sharing",
      "label": "Pension and profit sharing plans (but not the plan participants or government pension plans)",
      "count": 0,
      "fewer_than_5": false,
      "raum": null
    },
    {
      "type": "charitable",
      "label": "Charitable organizations",
      "count": 0,
      "fewer_than_5": false,
      "raum": null
    },
    {
      "type": "state_municipal",
      "label": "State or municipal government entities (including government pension plans)",
      "count": 0,
      "fewer_than_5": false,
      "raum": null
    },
    {
      "type": "other_investment_advisers",
      "label": "Other investment advisers",
      "count": 0,
      "fewer_than_5": false,
      "raum": null
    },
    {
      "type": "insurance_companies",
      "label": "Insurance companies",
      "count": 0,
      "fewer_than_5": false,
      "raum": null
    },
    {
      "type": "sovereign_wealth_foreign_official",
      "label": "Sovereign wealth funds and foreign official institutions",
      "count": 0,
      "fewer_than_5": false,
      "raum": null
    },
    {
      "type": "corporations_other_businesses",
      "label": "Corporations or other businesses not listed above",
      "count": 0,
      "fewer_than_5": false,
      "raum": null
    },
    {
      "type": "other",
      "label": "Other",
      "count": 1,
      "fewer_than_5": false,
      "raum": 544185.0
    }
  ],
  "disclosure_line": "Reports no disclosure items on Form ADV Item 11.",
  "disclosure_items": [],
  "indexable": true,
  "suppressed": false,
  "claimed": false,
  "enhanced": false,
  "provided_by_the_firm": null,
  "source": {
    "name": "Form ADV",
    "as_of": "2026-10-01",
    "iapd_url": "https://adviserinfo.sec.gov/firm/summary/112442",
    "operator": "BH Monitor Services, LLC",
    "license": "https://creativecommons.org/licenses/by/4.0/",
    "credit": "AdvisorCensus (advisorcensus.com), from SEC Form ADV data"
  }
}