ESN

What ESN does

ESN (이상네트웍스 / eSang Networks Co., Ltd.) is a privately held South Korean B2B electronic payment and commerce marketplace operator headquartered at ES Tower in Mapo-gu, Seoul. The company runs a unified B2B 전자결제 (electronic payment) platform — branded as ESN 이상네트웍스 B2B전자결제 — that enables corporate buyers and sellers in South Korea to prepare, execute, and complete business-to-business payments through direct internet-banking integrations. The platform is structured as three workflow modules: 결제준비 (payment preparation, covering order registration and trade contract management), 결제실행 (payment execution, transmitting payment records to integrated bank channels), and 결제완료 (payment completion, showing B2B payment history and managing MP commission tax settlements). Underlying technology is a web-based portal (bs.e-sang.net) augmented by downloadable Windows-compatible components including a tax-invoice module and an invoice-query program, with SignKorea (공인인증서) digital certificate authentication required for login and transaction signing.

The platform's core technical asset is direct integration with all 13 major Korean banks — KB Kookmin, IBK Industrial, Nonghyup, Shinhan, Woori, KEB Hana, Citibank Korea, Busan, Daegu, Kwangju, Suhyup, SC First, and Kyungnam — enabling internet-banking-based B2B payment execution and transmission of payment data from within the platform. Identity is anchored on SignKorea government-issued digital certificates and business registration number (사업자등록번호) verification, and the platform is connected to HomeTax (홈택스) for electronic tax invoice management. Beyond payments, ESN bundles a network of cross-promoted adjacent financial services: TrustON corporate finance, KBIZ cooperative joint purchasing, CIS electronic trade receivables insurance, Creport credit lookup, Hyundai/Kia Sangsaeng Bridge Loan, and Ilseok Ejo insurance — turning the payment portal into a broader SMB financial services hub.

The company is co-led by representative directors Cho Won-pyo (조원표) and Lee Sang-taek (이상택), with a privacy officer (이주용) and a single customer-service hotline (1577-4295). Pricing is not publicly disclosed and is handled via direct customer service. The company appears to generate revenue from B2B payment transaction-related services (the platform references "MP 수수료" / marketplace commission tax settlement workflows) and likely from member/transaction fees on its payment platform, though no quantitative revenue, funding, or transaction-volume data is disclosed. ESN also absorbed the MetalC.com B2B marketplace, consolidating those members onto its payment infrastructure, indicating an inorganic growth posture in addition to organic platform usage.

Name

ESN

Legal name

(주)이상네트웍스

Website

https://bs.e-sang.net

Company type

Private

Operating status

Operating

Short description

ESN (eSang Networks) is a South Korean B2B electronic payment platform serving corporate buyers and sellers, enabling end-to-end payment preparation, execution, and settlement via direct internet-banking integration with 13 major Korean banks and SignKorea government-issued digital certificate authentication.

Ownership category

akta.pro rank

Product category

B2B Payment Processing

NAICS

Financial Transactions Processing, Reserve, and Clearinghouse Activities (522320), Financial Transactions Processing, Reserve, and Clearinghouse Activities (52232)

SIC

Finance Services (6199), Services-Computer Integrated Systems Design (7373)

akta.pro primary industry

Payments Operations (ACH/Wire/RTGS, SWIFT, SEPA, Checks) (FSABALAB)

akta.pro secondary industries

Account & Balance Services (Operating accounts, statements, eBAM) (FSABAIAD), A2A Checkout & Merchant Acceptance Solutions (FSAMAFAF)

Keywords

• B2B payment platform
• Electronic payment processing
• Trade contract management
• Corporate banking integration
• Electronic invoice management

Headquarters

HQ city

Seoul

HQ country

South Korea

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Operations, Personnel, Marketing or Sales, Infrastructure

Distribution channels1 record

Marketing channels3 records

Core offering

ESN operates a B2B electronic payment platform that enables corporate buyers and sellers in South Korea to manage the full B2B transaction lifecycle — payment preparation, internet banking-based payment execution across 13 integrated Korean banks, and payment completion tracking — alongside electronic trade contract exchange and tax invoice management. The platform serves as a neutral intermediary connecting Korean corporations to domestic banking infrastructure for B2B commerce settlement.

Product overview

ESN 이상네트웍스 operates as a unified B2B electronic payment platform offering a modular system centered around its core B2B 전자결제 플랫폼. The platform is structured around three main workflow modules: 결제준비 (Payment Preparation) for creating payment records and managing trade contracts, 결제실행 (Payment Execution) for transmitting payments to integrated Korean internet banking services, and 결제완료 (Payment Completion) for viewing payment history and managing commissions. The platform integrates with 13 major Korean financial institutions (KB Kookmin, IBK, Nonghyup, Shinhan, Woori, Hana, Citibank, Busan, Daegu, Kwangju, Suhyup, SC First, Kyungnam) for payment processing, and provides a trade contract management module for handling B2B documentation. A dedicated invoice query program and MetalC marketplace integration service are also offered as supporting products.

Differentiator

Problem solved

Functional benefit

Segments2 records

Ideal customer profiles2 records

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration15 records

Feature1 record

Partnerships

Eight partnerships are on record, tiered core and minor.

• 메탈씨닷컴 (MetalC.com)coreStrategic or Co-development PartnerMetalC.com B2B marketplace has integrated with ESN as a B2B electronic commerce specialist. ESN handles the B2B transaction (payment) service integration for MetalC members, requiring user consent and login consolidation for the unified service.
• 전자방식 매출채권보험 (CIS)minorGTM or Marketing PartnerElectronic trade receivables insurance service (cis.e-sang.net) is promoted on the ESN platform as a complementary financial service for B2B transactions.
• TrustON 기업금융minorGTM or Marketing PartnerTrustON corporate finance service is cross-promoted on the ESN platform as a complementary offering for corporate financial needs.
• KBIZ 협동조합 공동구매minorGTM or Marketing PartnerKBIZ Cooperative joint purchasing program is linked from the ESN platform, promoting procurement cost savings for member companies.
• 현대기아 상생브릿지론 (Hyundai/Kia Sangsaeng Bridge Loan)minorGTM or Marketing PartnerHyundai/Kia supply chain finance bridge loan program (bridge.vaatz.com) is cross-promoted on the ESN platform as a working capital solution for B2B transaction participants.
• 일석e조보험 (Ilseok Ejo Insurance)minorGTM or Marketing PartnerIlseok e-jo insurance product is cross-promoted on the ESN platform as a complementary financial service.
• SignKorea (공동인증서)coreTechnology or IntegrationSignKorea certificate authentication module (SKCertService) is downloadable from the ESN platform and required for corporate user login and transaction signing. The platform provides direct links to SignKorea certificate center and certificate testing tools.
• Korean Major Banks (국민은행, 기업은행, 농협은행, 대구은행, 부산은행, 수협은행, 신한은행, 씨티은행, 우리은행, KEB하나은행, SC제일은행, 경남은행, 광주은행)coreTechnology or Integration13 major Korean banks are integrated into the ESN B2B payment platform for internet banking-based payment execution and transmission of payment data. Banks include KB, IBK, NH, DGB, Busan, Suhyup, Shinhan, Citibank, Woori, KEB Hana, SC First, Gyeongnam, and Gwangju banks.

Recent moves7 records

Expansion highlights4 records

Broad incumbents

• Kakao Pay: Large Korean mobile/web payment platform with merchant acquiring and B2B payment offerings. Broad incumbent whose scale, mobile-first UX and bank partnerships compete for the same corporate payment flows.
• NHN (NHN Data / NHN Cloud): Korean tech group operating payment, B2B SaaS (Wehago) and cloud businesses. Comparable as a broad incumbent with payment processing and B2B platform offerings that overlap with ESN's value proposition for Korean corporates.
• Toss Payments (토스페이먼츠): Major Korean fintech payment service under Viva Republica offering online, mobile and cross-border payment processing. Broad incumbent in Korean payments, with growing B2B capabilities that overlap with ESN's domestic B2B execution role.

Direct peers

• KICC (한국정보통신): Long-standing Korean payment processor providing VAN services and electronic payment infrastructure to merchants and corporates. Directly comparable as a bank-aggregated Korean payment operations provider.
• KG이니시스 (KG Inicis): Korea's largest payment gateway, providing online and offline payment processing for merchants including B2B contexts. Directly comparable as a Korean payment-processing infrastructure layer serving multiple banks and corporate customers.
• KG Mobilians (모빌리언스): Korean payment aggregator handling billing, mobile and online payments across multiple Korean payment channels. Comparable as a multi-bank payment routing and processing platform for Korean commerce.
• KSNET (한국전산망): Major Korean VAN (Value Added Network) payment processor with broad multi-bank payment routing. Comparable to ESN as a domestic payment operations utility sitting between corporates and Korean banks.
• NICE Payments (나이스페이): Korean payment processor offering multi-channel electronic payment services for merchants. Comparable in providing bank-aggregated payment execution and settlement infrastructure for Korean businesses.

Emerging players

• Bill365 (한국빌링): Korean electronic billing and B2B payment platform providing invoicing and settlement services. Comparable as a niche domestic B2B billing-and-payment workflow provider competing for the same Korean SME customer base.

Others

• Creport (크레포트): Korean corporate credit information and early-warning service linked from ESN's platform. Adjacent ecosystem participant providing credit data referenced in B2B payment workflows.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/esang-networks-co-ltd

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about ESN