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Form 3 - Initial statement of beneficial ownership of securities:
SEC Accession No. 0000899243-21-015575
Filing Date
2021-04-12
Accepted
2021-04-12 21:57:28
Documents
1
Period of Report
2021-04-01

Document Format Files

Seq Description Document Type Size
1 FORM 3 SUBMISSION doc3.html 3  
1 FORM 3 SUBMISSION doc3.xml 3 22130
  Complete submission text file 0000899243-21-015575.txt   27762
Mailing Address 345 PARK AVENUE NEW YORK NY 10154
Business Address 345 PARK AVENUE NEW YORK NY 10154 (212) 583-5000
Blackstone Holdings III L.P. (Reporting) CIK: 0001404073 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38186 | Film No.: 21821894

Mailing Address 345 PARK AVENUE NEW YORK NY 10154
Business Address 345 PARK AVENUE NEW YORK NY 10154 212-583-5000
BLACKSTONE FAMILY GP LLC (Reporting) CIK: 0001404964 (see all company filings)

Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38186 | Film No.: 21821891

Mailing Address 345 PARK AVENUE NEW YORK NY 10154
Business Address 345 PARK AVENUE NEW YORK NY 10154 212.583.5000
Blackstone Holdings III GP L.P. (Reporting) CIK: 0001478809 (see all company filings)

State of Incorp.: DE
Type: 3 | Act: 34 | File No.: 001-38186 | Film No.: 21821888

Mailing Address 345 PARK AVENUE NEW YORK NY 10154
Business Address 345 PARK AVENUE NEW YORK NY 10154 212.583.5000
Blackstone Holdings III GP Management L.L.C. (Reporting) CIK: 0001478815 (see all company filings)

State of Incorp.: DE
Type: 3 | Act: 34 | File No.: 001-38186 | Film No.: 21821887

Mailing Address 7701 INDEPENDENCE AVENUE KANSAS CITY MO 64125
Business Address 7701 INDEPENDENCE AVENUE KANSAS CITY MO 64125 (816) 241-4888
Custom Truck One Source, Inc. (Issuer) CIK: 0001709682 (see all company filings)

IRS No.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 7359 Services-Equipment Rental & Leasing, NEC
Office of Trade & Services

Mailing Address C/O THE BLACKSTONE GROUP INC. 345 PARK AVENUE NEW YORK NY 10154
Business Address C/O THE BLACKSTONE GROUP INC. 345 PARK AVENUE NEW YORK NY 10154 212-583-5000
Blackstone Management Associates VI-NQ L.L.C. (Reporting) CIK: 0001855930 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38186 | Film No.: 21821890

Mailing Address C/O THE BLACKSTONE GROUP INC. 345 PARK AVENUE NEW YORK NY 10154
Business Address C/O THE BLACKSTONE GROUP INC. 345 PARK AVENUE NEW YORK NY 10154 212-583-5000
Blackstone Energy Management Associates NQ L.L.C. (Reporting) CIK: 0001855939 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38186 | Film No.: 21821893

Mailing Address C/O THE BLACKSTONE GROUP INC. 345 PARK AVENUE NEW YORK NY 10154
Business Address C/O THE BLACKSTONE GROUP INC. 345 PARK AVENUE NEW YORK NY 10154 212-583-5000
Blackstone EMA-NQ L.L.C. (Reporting) CIK: 0001855943 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38186 | Film No.: 21821892

Mailing Address C/O THE BLACKSTONE GROUP INC. 345 PARK AVENUE NEW YORK NY 10154
Business Address C/O THE BLACKSTONE GROUP INC. 345 PARK AVENUE NEW YORK NY 10154 212-583-5000
BMA VI-NQ L.L.C. (Reporting) CIK: 0001855977 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38186 | Film No.: 21821889