Who are First Seacoast Bancorp, Inc.'s main suppliers?

First Seacoast Bancorp, Inc. (FSEA) key suppliers include: FSB-SERVICE-CORPORATION-INC, FSB-WEALTH-MANAGEMENT, THIRD-PARTY-REGISTERED-BROKER-DEALER-AND-INVESTM. View the full supplier network at chainsifter.com/chain/FSEA.

Who are First Seacoast Bancorp, Inc.'s major customers?

First Seacoast Bancorp, Inc. (FSEA) key customers include: COMMERCIAL-LOAN-BORROWER, Financial Institutions, Inc., Financial Institutions, Inc., Manchester, Manchester and 5 more. View the full customer network at chainsifter.com/chain/FSEA.

What sector is First Seacoast Bancorp, Inc. in?

First Seacoast Bancorp, Inc. (FSEA) operates in the general sector. ChainSifter tracks its verified supply chain relationships including suppliers, customers, and strategic partners.

First Seacoast Bancorp, Inc. Supplier List (FSEA): 3 Verified Suppliers

3Suppliers

10Customers

2Debt Items

20Related Chains

Source-Backed Evidence Depth

First Seacoast Bancorp, Inc. (FSEA) is shown with relationship data already present in ChainSifter's database. Counts below come from stored supply-chain records and filing/source URLs where available; missing source URLs are not filled in or estimated.

16Total relationships

3Distinct source URLs

7High confidence

0.759Average confidence

2026-09-13Latest database update

ChainSifter does not infer unreported suppliers, customers, ownership, acquisitions, debt exposure, revenue dependency, or future supply-chain events on this public page.

First Seacoast Bancorp, Inc. Suppliers

Ticker	Name	Confidence	Evidence
FSB-SERVICE-CORPORATION-INC	FSB-SERVICE-CORPORATION-INC	90%	The Bank's wholly-owned subsidiary, FSB Service Corporation, Inc.
FSB-WEALTH-MANAGEMENT	FSB-WEALTH-MANAGEMENT	85%	Investment management services are offered through FSB Wealth Management - a division of First Seacoast Bank
THIRD-PARTY-REGISTERED-BROKER-DEALER-AND-INVESTM	THIRD-PARTY-REGISTERED-BROKER-DEALER-AND-INVESTM	80%	These investments and services are offered through a third-party registered broker-dealer and investment advisor

First Seacoast Bancorp, Inc. Customers

Ticker	Name	Confidence	Evidence
COMMERCIAL-LOAN-BORROWER	COMMERCIAL-LOAN-BORROWER	92%	The Company executes interest rate swaps with customers to facilitate their respective risk management strategies.
FISI	Financial Institutions, Inc.	72%	implement and change our business strategies; • competition among depository and other financial institutions; • inflation and changes in the interest rate environment that reduce our margins and yie…
FISI	Financial Institutions, Inc.	72%	Reciprocal relationship from FISI graph: Reciprocal relationship from FSEA graph: Reciprocal relationship from FISI graph: Reciprocal relationship from FSEA graph: Reciprocal relationship from FISI g…
MANU	Manchester	72%	ls and biotech. Additionally, although we do not have a branch office in York County, Maine, many of our customers work and reside in York County, which is contiguous to Strafford County. Our Dover h…
MANU	Manchester	72%	Reciprocal relationship from MANU graph: Reciprocal relationship from FSEA graph: ls and biotech. Additionally, although we do not have a branch office in York County, Maine, many of our customers wo…
CAMBRIDGE-FINANCIAL-GROUP-INC	CAMBRIDGE-FINANCIAL-GROUP-INC	62%	Total $ 50 $ — $ 50 $ — $ 26 $ 24 December 31, 2025 Derivative Assets: Interest rate contract - fair value hedge (2) $ — $ — $ — $ — $ — $ — Interest rate contract - cash flow hedge (2) — — — — — — C…
FEDERAL-RESERVE-BOARD-FIRST-SEACOAST-BANCORP-INC	FEDERAL-RESERVE-BOARD-FIRST-SEACOAST-BANCORP-INC	62%	t impacting our overall liability costs for existing accounts. We also rely on customer service, convenience of our branch office locations, advertising and pre-existing relationships to gather and d…
FIRST-SEACOAST-COMMUNITY-FOUNDATION-INC	FIRST-SEACOAST-COMMUNITY-FOUNDATION-INC	62%	2024, net of amortization), of which $172,000 was paid at closing. Each client account was assigned a value, and as each client transferred to the Bank, 85% of this value was paid to the seller. Duri…
FSB-SERVICE-CORPORATION-INC	FSB-SERVICE-CORPORATION-INC	62%	-for-sale 3,016 ( 1,463 ) Deferred taxes ( 812 ) 394 Other comprehensive income (loss) 2,204 ( 1,069 ) Effect of change in fair value of interest rate swaps: Interest rate swaps 1 ( 42 ) Deferred tax…
INTRAFI-NETWORK-LLC	INTRAFI-NETWORK-LLC	62%	the borrowing and deposit withdrawal requirements of our customers and to fund current and planned expenditures. As of December 31, 2025 and 2024, the aggregate amount of uninsured total deposit bala…

First Seacoast Bancorp, Inc. Debt Obligations

Instrument	Description	Confidence	Evidence
FSEA-DEBT-9654	Xbrl Convertible	90%	xbrl convertible detail from xbrl 2023-12-31.
FSEA-DEBT	Debt stack $52.3M	90%	Market cache reports total debt of $52.3M.

First Seacoast Bancorp, Inc. Acquisitions

No acquisitions on recordNo completed or pending acquisitions found in our database for First Seacoast Bancorp, Inc..

First Seacoast Bancorp, Inc. Ownership

Holder	Name	Confidence	Evidence
FSEA-OWNER-ALLIANCEBERNSTEIN-L-P	ALLIANCEBERNSTEIN L.P.	90%	13F overlay lists ALLIANCEBERNSTEIN L.P. as top holder; 17 tracked holders.

First Seacoast Bancorp, Inc. Extended Supply Chain Network

Ticker	Name	Chain Index	Hops
ARM	Arm Holdings plc	100.00	2
CHYM	Chime Financial, Inc.	100.00	2
ENLT	Enlight Renewable Energy Ltd	100.00	2
FNWB	First Northwest Bancorp	100.00	2
ARMK	Aramark	100.00	2
BANL	CBL International Limited	100.00	2
BBAR	Banco BBVA Argentina S.A.	100.00	2
AUGO	Aura Minerals Inc.	100.00	2
BRBS	Blue Ridge Bankshares, Inc.	100.00	2
CNF	CNFinance Holdings Limited	100.00	2
AVAL	Grupo Aval Acciones y Valores S.A.	100.00	2
BSBR	Banco Santander (Brasil) S.A.	100.00	2
ALGM	Allegro MicroSystems, Inc.	100.00	2
BTTC	Black Titan Corporation	100.00	2
VRNO	Verano Holdings Corp.	100.00	2
BLX	Banco Latinoamericano de Comercio Exterior, S. A.	100.00	2
BRBI	BRBI BR Partners S.A.	100.00	2
GEMI	Gemini Space Station, Inc.	100.00	2
BMA	Banco Macro S.A.	100.00	2
BNRG	Brenmiller Energy Ltd	100.00	2

First Seacoast Bancorp, Inc. Supply Chain