What Corretto does

Corretto (주식회사 코레토), operating under the brand name 인사이드웹 (Inside Web) and also branded as 위드유 (WithYou), is a South Korean software development agency founded on April 23, 2018. The company is headquartered at Gallim Building 5F, 4 Dosan-daero 17-gil, Gangnam-gu, Seoul, and is co-led by representative directors Kim Woo-young (김우영) and Jung Ji-seung (정지승). Corretto is a privately held, bootstrapped corporation with no disclosed external funding rounds, parent company, or subsidiaries.

The company's core offering is custom full-stack software development spanning responsive web platforms, native iOS/Android applications, and backend systems, with specialized capability in O2O (Online-to-Offline) platforms — including auction/bidding, reservation, subscription commerce, and location-based matching services. Service coverage was extended in 2023 to include big data analytics systems, AI/machine learning/deep learning implementations, and blockchain/cryptocurrency solutions, alongside AWS-based managed hosting for the firm's own clients. Corretto claims a proprietary source code repository accumulated over more than five years of project work as the basis for faster delivery and competitive pricing.

Corretto operates a project-based, quote-based revenue model: prospective clients submit inquiries through the corretto.io contact form specifying company details, budget, and platform preference, after which the firm delivers customized proposals. Revenue streams include one-time custom development project fees, development and planning consulting, AWS managed hosting services tied to operational client projects, and sales of proprietary solutions. The publicly disclosed portfolio comprises 8 completed projects spanning influencer matching, used car O2O trading, part-time job matching, meal subscription delivery, travel booking, public kindergarten association CRM, and jewelry-industry ERP — indicating breadth across consumer O2O, marketplace, and enterprise internal systems. Customer acquisition is direct and enterprise-driven, with no marketplace presence, reseller network, or self-serve channel.

Name

Corretto

Legal name

Corretto, Inc. (주식회사 코레토)

Website

https://corretto.io

Company type

Private

Founded year

2018

Operating status

Operating

Short description

Corretto (인사이드웹) is a Seoul-based, bootstrapped software development agency founded in 2018 that builds custom web platforms, iOS/Android apps, backend systems, and O2O platforms for Korean enterprises and startups, with AWS hosting and AI/blockchain capabilities added in 2023.

Ownership category

akta.pro rank

Product category

Custom Software Development Services

SIC

Services-Computer Programming Services (7371)

akta.pro primary industry

Offshore Development Center (ODC) / Dedicated Team Services (BPAEAMAL)

Keywords

• Custom software development
• Mobile app development
• Web application development
• O2O platform development
• Backend system development

Headquarters

HQ city

Bucheon

HQ country

South Korea

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Custom Software Development Projects: Project-based custom development services for web platforms, iOS/Android applications, and backend systems. Revenue is generated through one-time project fees negotiated based on project scope, complexity, and client budget. This is the primary revenue stream.
2. Development and Planning Consulting: Consulting services for IT strategy, development planning, and project requirements specification.
3. AWS Hosting Services: Hosting services provided using Amazon Web Services specifically for services developed by the company, creating a managed services revenue stream tied to operational client projects.
4. Proprietary Solution Development and Sales: Development and sale of proprietary software solutions and platforms as standalone products.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels3 records

Core offering

Corretto is a software development agency that delivers custom end-to-end IT services including planning, design, development, and AWS-based hosting for web platforms, iOS/Android mobile applications, and backend systems. It specializes in O2O (Online-to-Offline) platform development such as auction/bidding, reservation, subscription, and location-based matching services, and also develops and sells proprietary software solutions and provides development planning consulting.

Product overview

Corretto (주식회사 코레토 / 인사이드웹) is a software development agency founded in 2018, offering comprehensive development services across web platforms, iOS/Android mobile apps, and backend systems. The company provides end-to-end development including planning, design, development, and hosting services. Their core offerings include O2O (Online-to-Offline) platform development, proprietary solution development and sales, and development consulting. The portfolio spans various industry-specific solutions including influencer matching platforms, used car trading O2O platforms, part-time job matching platforms, meal delivery subscription services, travel reservation platforms, CRM systems for educational associations, and ERP systems for the jewelry industry.

Differentiator

Problem solved

Functional benefit

Products and services

• Web Platform Development (웹 플랫폼 개발)

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators3 records

Recent moves4 records

Expansion highlights4 records

Direct peers

• BairesDev: BairesDev is a software development agency providing outsourced engineering talent and project-based custom development. Its core business of delivering client web/mobile/AI solutions parallels Corretto's custom dev agency model.
• ThoughtWorks: ThoughtWorks is a global technology consultancy with deep custom development, modernization, and emerging tech capabilities. Its consultative, project-based engagement model for digital platforms is highly comparable to Corretto's service.
• Itransition: Itransition is a custom software development company delivering web, mobile, and enterprise application projects. Its outsourced development model and broad tech coverage (including AI) make it a direct peer to Corretto.
• Globant: Globant is a global digital transformation company delivering custom software engineering, web/mobile app development, and AI/data services. Like Corretto, it sells project-based custom development across web, mobile, and emerging technologies for enterprise clients.
• Endava: Endava is a technology consultancy providing custom software development and digital transformation services. Its multi-platform, full-stack delivery model closely mirrors Corretto's one-stop web, mobile, and backend service approach.

Emerging players

• Toptal: Toptal operates a marketplace connecting clients with freelance software developers and designers. It addresses the same Korean SMB/enterprise pain point (multi-platform custom dev without managing multiple vendors) through a different delivery model.
• Andela: Andela is a global talent marketplace for software engineers that helps companies scale engineering capacity. It competes for the same client use case — outsourced, project-based software delivery — via a platform/talent model rather than agency model.

Broad incumbents

• EPAM Systems: EPAM is a large global provider of software engineering, digital platform, and product development services. It competes with Corretto for the same custom development budgets but at significantly greater scale and with a broader service portfolio.

Regional players

• Samsung SDS: Samsung SDS is a leading Korean IT services provider with cloud, digital transformation, and custom enterprise software offerings. It is a regional incumbent with overlapping capabilities but primarily serves large enterprise and Samsung group clients.
• LG CNS: LG CNS is a major Korean IT services company delivering enterprise software development, digital transformation, and systems integration. It is a much larger Korean incumbent operating in adjacent IT services territory but does not compete in the small-to-mid-market custom dev niche Corretto occupies.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

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 Corretto