Hellmuth Obata & Kassabaum PC: New York City Government Payments

as recorded by New York City: HELLMUTH OBATA & KASSABAUM PC

Hellmuth Obata & Kassabaum PC is the 1,761st-largest recipient of New York City government payments tracked by SpendLedger, and ranks 47th in N/A spending. Its payments amount to 0.4% of everything the Department of Design and Construction has paid vendors in that span.

Primary spending category: N/A

$22,775,760total received

55payments

3agencies

Jan 15, 2010 – Feb 16, 2024first / last payment

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Payments by fiscal year

The payment history

Select a column to see the agencies behind that fiscal year.

Explore a fiscal year

9 fiscal years on record. The incoming flows below combine all recorded years.

Fiscal years may be partial; missing years are not zero spending. Negative columns reflect net refunds or corrections. Amounts share a linear scale.

Who pays this supplier?

Select a paying agency to inspect the relationship, then open its profile.

Jan 15, 2010 to Feb 16, 2024 · All recorded fiscal years

Show up to

Showing 3 of 3 positive agencies in these records.

Flow widths compare the relationships shown. Percentages use the full recorded supplier total for this period: $22,775,759.63. Zero and net-negative relationships are excluded from positive flows.

The relationships at a glance

Total shown: $22,775,759.63
Payments represented: 55
Paying agencies shown: 3
Largest share of supplier total: 84.7%

Largest displayed relationship: Department of Design and Construction. Select a flow to explore its details.

Jan 15, 2010 to Feb 16, 2024 · All recorded fiscal years. Amount and payment count cover the relationships shown; shares use the full supplier total.

Receiving supplier

Hellmuth Obata & Kassabaum PC

$22,775,760from the agencies shown

Hellmuth Obata & Kassabaum PC
$22,775,760 from the agencies shown

$19,292,01584.7% of supplier total
$3,371,71414.8% of supplier total
$112,0310.5% of supplier total

This is a selection, not a full spending breakdown. Other agencies are not included in the flow. Some recorded agencies have no public profile link. Coverage may be partial. Review the agency table.

Payments by fiscal year and agency

Fiscal year	Agency	Payments	Total
FY 2024	Department of Design and Construction	5	$19,292,015
FY 2024	School Construction Authority	1	$133,615
FY 2022	School Construction Authority	8	$73,242
FY 2019	School Construction Authority	4	$314,592
FY 2018	School Construction Authority	5	$1,976,250
FY 2017	Health and Hospitals Corporation	8	$45,842
FY 2016	Health and Hospitals Corporation	5	$66,189
FY 2012	School Construction Authority	7	$81,732
FY 2011	School Construction Authority	7	$350,460
FY 2010	School Construction Authority	5	$441,823
Total		55	$22,775,760

What the payments were for

Spending categories exactly as New York City government codes them in its own accounting; we do not reclassify.

Category	Payments	Total	First / last
CONSTRUCTION-BUILDINGS	37	$3,371,714	Jan 15, 2010 – Jul 27, 2023
N/A	5	$19,292,015	Sep 18, 2023 – Feb 16, 2024
DESIGN-CONSULTANT-BUILDINGS	13	$112,031	Jan 19, 2016 – Apr 26, 2017

Largest payments by fiscal year

The biggest individual payments in each fiscal year, up to 20 per year. Where the source publishes a purchase order behind a payment, the PO description appears; older payments may carry a bare PO reference because the government's published PO files do not reach back that far.

Download this table as CSV (free, with source citation on every row)

FY 2024top 6 of 6 payments$19,425,630

Date	Agency	Amount	Category	Purchase order
Dec 15, 2023	Department of Design and Construction	$5,814,507.47	N/A	–
Feb 16, 2024	Department of Design and Construction	$4,025,918.75	N/A	–
Feb 1, 2024	Department of Design and Construction	$3,486,513.84	N/A	–
Nov 28, 2023	Department of Design and Construction	$3,388,773.50	N/A	–
Sep 18, 2023	Department of Design and Construction	$2,576,300.98	N/A	–
Jul 27, 2023	School Construction Authority	$133,615.00	CONSTRUCTION-BUILDINGS	–

FY 2022top 8 of 8 payments$73,242

Date	Agency	Amount	Category	Purchase order
Sep 22, 2021	School Construction Authority	$23,124.94	CONSTRUCTION-BUILDINGS	–
Sep 22, 2021	School Construction Authority	$14,442.82	CONSTRUCTION-BUILDINGS	–
Apr 21, 2022	School Construction Authority	$13,168.69	CONSTRUCTION-BUILDINGS	–
Apr 21, 2022	School Construction Authority	$11,507.05	CONSTRUCTION-BUILDINGS	–
Sep 22, 2021	School Construction Authority	$6,300.00	CONSTRUCTION-BUILDINGS	–
Sep 22, 2021	School Construction Authority	$2,296.89	CONSTRUCTION-BUILDINGS	–
Sep 22, 2021	School Construction Authority	$2,265.73	CONSTRUCTION-BUILDINGS	–
Apr 21, 2022	School Construction Authority	$135.99	CONSTRUCTION-BUILDINGS	–

FY 2019top 4 of 4 payments$314,592

Date	Agency	Amount	Category	Purchase order
Apr 15, 2019	School Construction Authority	$139,500.00	CONSTRUCTION-BUILDINGS	–
Aug 1, 2018	School Construction Authority	$139,500.00	CONSTRUCTION-BUILDINGS	–
Jan 23, 2019	School Construction Authority	$25,592.00	CONSTRUCTION-BUILDINGS	–
Aug 1, 2018	School Construction Authority	$10,000.00	CONSTRUCTION-BUILDINGS	–

FY 2018top 5 of 5 payments$1,976,250

Date	Agency	Amount	Category	Purchase order
Dec 7, 2017	School Construction Authority	$697,500.00	CONSTRUCTION-BUILDINGS	–
Oct 2, 2017	School Construction Authority	$465,000.00	CONSTRUCTION-BUILDINGS	–
Apr 6, 2018	School Construction Authority	$348,750.00	CONSTRUCTION-BUILDINGS	–
Aug 14, 2017	School Construction Authority	$232,500.00	CONSTRUCTION-BUILDINGS	–
Aug 14, 2017	School Construction Authority	$232,500.00	CONSTRUCTION-BUILDINGS	–

FY 2017top 8 of 8 payments$45,842

Date	Agency	Amount	Category	Purchase order
Oct 24, 2016	Health and Hospitals Corporation	$9,087.50	DESIGN-CONSULTANT-BUILDINGS	–
Apr 26, 2017	Health and Hospitals Corporation	$9,083.50	DESIGN-CONSULTANT-BUILDINGS	–
Oct 24, 2016	Health and Hospitals Corporation	$7,843.50	DESIGN-CONSULTANT-BUILDINGS	–
Apr 26, 2017	Health and Hospitals Corporation	$6,358.75	DESIGN-CONSULTANT-BUILDINGS	–
Oct 24, 2016	Health and Hospitals Corporation	$6,262.50	DESIGN-CONSULTANT-BUILDINGS	–
Oct 24, 2016	Health and Hospitals Corporation	$5,087.00	DESIGN-CONSULTANT-BUILDINGS	–
Aug 15, 2016	Health and Hospitals Corporation	$1,440.51	DESIGN-CONSULTANT-BUILDINGS	–
Oct 24, 2016	Health and Hospitals Corporation	$679.04	DESIGN-CONSULTANT-BUILDINGS	–

FY 2016top 5 of 5 payments$66,189

Date	Agency	Amount	Category	Purchase order
Jan 19, 2016	Health and Hospitals Corporation	$44,900.00	DESIGN-CONSULTANT-BUILDINGS	–
Feb 24, 2016	Health and Hospitals Corporation	$10,901.00	DESIGN-CONSULTANT-BUILDINGS	–
Feb 24, 2016	Health and Hospitals Corporation	$4,028.97	DESIGN-CONSULTANT-BUILDINGS	–
Feb 24, 2016	Health and Hospitals Corporation	$3,815.25	DESIGN-CONSULTANT-BUILDINGS	–
Feb 24, 2016	Health and Hospitals Corporation	$2,543.50	DESIGN-CONSULTANT-BUILDINGS	–

FY 2012top 7 of 7 payments$81,732

Date	Agency	Amount	Category	Purchase order
Jun 18, 2012	School Construction Authority	$53,958.56	CONSTRUCTION-BUILDINGS	–
Jun 18, 2012	School Construction Authority	$24,086.24	CONSTRUCTION-BUILDINGS	–
Jun 15, 2012	School Construction Authority	$998.00	CONSTRUCTION-BUILDINGS	–
Jun 15, 2012	School Construction Authority	$846.00	CONSTRUCTION-BUILDINGS	–
Jun 15, 2012	School Construction Authority	$695.00	CONSTRUCTION-BUILDINGS	–
Jun 15, 2012	School Construction Authority	$695.00	CONSTRUCTION-BUILDINGS	–
Jun 15, 2012	School Construction Authority	$453.00	CONSTRUCTION-BUILDINGS	–

FY 2011top 7 of 7 payments$350,460

Date	Agency	Amount	Category	Purchase order
Jan 3, 2011	School Construction Authority	$80,997.42	CONSTRUCTION-BUILDINGS	–
Dec 7, 2010	School Construction Authority	$78,583.04	CONSTRUCTION-BUILDINGS	–
Jun 22, 2011	School Construction Authority	$54,079.48	CONSTRUCTION-BUILDINGS	–
Dec 1, 2010	School Construction Authority	$50,594.56	CONSTRUCTION-BUILDINGS	–
Jan 18, 2011	School Construction Authority	$31,217.92	CONSTRUCTION-BUILDINGS	–
Feb 17, 2011	School Construction Authority	$27,988.48	CONSTRUCTION-BUILDINGS	–
Jan 26, 2011	School Construction Authority	$26,999.36	CONSTRUCTION-BUILDINGS	–

FY 2010top 5 of 5 payments$441,823

Date	Agency	Amount	Category	Purchase order
Jun 17, 2010	School Construction Authority	$121,528.20	CONSTRUCTION-BUILDINGS	–
Jun 17, 2010	School Construction Authority	$109,262.72	CONSTRUCTION-BUILDINGS	–
Jan 15, 2010	School Construction Authority	$89,616.96	CONSTRUCTION-BUILDINGS	–
Jun 25, 2010	School Construction Authority	$80,965.02	CONSTRUCTION-BUILDINGS	–
Feb 11, 2010	School Construction Authority	$40,450.00	CONSTRUCTION-BUILDINGS	–

Recent payments

Date	Agency	Amount	Category	Method
Feb 16, 2024	Department of Design and Construction	$4,025,918.75	N/A	Contracts
Feb 1, 2024	Department of Design and Construction	$3,486,513.84	N/A	Contracts
Dec 15, 2023	Department of Design and Construction	$5,814,507.47	N/A	Contracts
Nov 28, 2023	Department of Design and Construction	$3,388,773.50	N/A	Contracts
Sep 18, 2023	Department of Design and Construction	$2,576,300.98	N/A	Contracts
Jul 27, 2023	School Construction Authority	$133,615.00	CONSTRUCTION-BUILDINGS	Capital Contracts
Apr 21, 2022	School Construction Authority	$135.99	CONSTRUCTION-BUILDINGS	Capital Contracts
Apr 21, 2022	School Construction Authority	$13,168.69	CONSTRUCTION-BUILDINGS	Capital Contracts
Apr 21, 2022	School Construction Authority	$11,507.05	CONSTRUCTION-BUILDINGS	Capital Contracts
Sep 22, 2021	School Construction Authority	$2,265.73	CONSTRUCTION-BUILDINGS	Capital Contracts
Sep 22, 2021	School Construction Authority	$14,442.82	CONSTRUCTION-BUILDINGS	Capital Contracts
Sep 22, 2021	School Construction Authority	$23,124.94	CONSTRUCTION-BUILDINGS	Capital Contracts
Sep 22, 2021	School Construction Authority	$2,296.89	CONSTRUCTION-BUILDINGS	Capital Contracts
Sep 22, 2021	School Construction Authority	$6,300.00	CONSTRUCTION-BUILDINGS	Capital Contracts
Apr 15, 2019	School Construction Authority	$139,500.00	CONSTRUCTION-BUILDINGS	Capital Contracts
Jan 23, 2019	School Construction Authority	$25,592.00	CONSTRUCTION-BUILDINGS	Capital Contracts
Aug 1, 2018	School Construction Authority	$10,000.00	CONSTRUCTION-BUILDINGS	Capital Contracts
Aug 1, 2018	School Construction Authority	$139,500.00	CONSTRUCTION-BUILDINGS	Capital Contracts
Apr 6, 2018	School Construction Authority	$348,750.00	CONSTRUCTION-BUILDINGS	Capital Contracts
Dec 7, 2017	School Construction Authority	$697,500.00	CONSTRUCTION-BUILDINGS	Capital Contracts
Oct 2, 2017	School Construction Authority	$465,000.00	CONSTRUCTION-BUILDINGS	Capital Contracts
Aug 14, 2017	School Construction Authority	$232,500.00	CONSTRUCTION-BUILDINGS	Capital Contracts
Aug 14, 2017	School Construction Authority	$232,500.00	CONSTRUCTION-BUILDINGS	Capital Contracts
Apr 26, 2017	Health and Hospitals Corporation	$6,358.75	DESIGN-CONSULTANT-BUILDINGS	Capital Contracts
Apr 26, 2017	Health and Hospitals Corporation	$9,083.50	DESIGN-CONSULTANT-BUILDINGS	Capital Contracts

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VerifiedData refreshed Sep 24, 2026 from Checkbook NYC (checkbooknyc.com): 38,060,921 payments on record, Dec 22, 2009 to Jun 30, 2025. How we verify this data