What Greenergy does

Greenergy (legal name: GRINERGY) is a Seoul, South Korea-based private company founded in 2017 that designs and manufactures lithium-ion rechargeable batteries. The company is positioned around three pillars — environment, innovation, and energy — and is described as a battery innovation company targeting the clean energy transition. Its core offering centers on lithium-ion cell technology, though specific product SKUs, cell formats, chemistry, capacity ranges, and target applications are not publicly disclosed in available sources; the company's website only exposes high-level navigation for About, Product, Investors, News, Notice, and Contact.

The company was founded by former employees of Apple and Tesla, and this talent pedigree is a central part of its identity and investor narrative. Greenergy has raised approximately $43 million across six disclosed funding events between 2019 and 2025, beginning with non-dilutive TIPS Program support in 2019 and progressing through a ~10 billion KRW (~$8.5M) Series A in November 2021 led by Korean institutional investors including Hana Financial Investment, KB Investment, SL Investment, and Wellix Investment. A subsequent ~$29.2M round in June 2024 and a $1.5M round from Titanvolt in April 2025 indicate a continuing scale-up phase. The company also received a 2023 Korean Good Design Award in the Innovation/R&D category, providing third-party design validation.

Greenergy's business model is not publicly disclosed; pricing details, go-to-market channels, distribution strategy, customer segments, and named customers are all absent from available sources. Headcount is reported in the 11-50 range, consistent with an early-stage hardware company that has raised meaningful capital but has not yet disclosed commercial traction, revenue, or production volumes. The horizontal segmentation approach and absence of any disclosed customer logos mean revenue mechanics cannot be characterized from the data on hand.

Name

Greenergy

Legal name

GRINERGY

Website

https://grinergy.co.kr

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

11–50 employees

Short description

Greenergy is a Seoul-based private company, founded in 2017 by former Apple and Tesla employees, that designs and manufactures lithium-ion rechargeable batteries for clean energy applications.

Ownership category

akta.pro rank

Product category

Lithium-ion Battery Manufacturing

NAICS

Battery Manufacturing (33591), Battery Manufacturing (335910)

SIC

Switchgear & Switchboard Apparatus (3613)

akta.pro primary industry

Battery Modules & Packs (Industrial/Commercial pack assembly) (IMAGAHAB)

Keywords

• Lithium-ion batteries
• Rechargeable battery manufacturing
• Battery innovation technology
• Energy storage solutions
• Clean energy batteries

Headquarters

HQ city

Seoul

HQ country

South Korea

HQ region

Asia

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Technology or R&D, Personnel, Infrastructure

Core offering

Greenergy designs and manufactures lithium-ion rechargeable batteries using its proprietary battery innovation technology. Founded by former employees of Apple and Tesla, the company focuses on developing advanced battery solutions aimed at supporting the clean energy transition and a green future.

Product overview

Limited information available. The company operates a website (grinergy.tech) with navigation sections including About, Product, Investors, News, Notice, and Contact, but no specific product details, modules, or service offerings are described in the provided source material.

Differentiator

Problem solved

Functional benefit

Products and services

• Lithium-ion rechargeable batteries

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators1 record

Recent moves4 records

Expansion highlights3 records

Broad incumbents

• LG Energy Solution: One of the world's largest lithium-ion battery manufacturers, headquartered in South Korea. Competes with Greenergy in the same Seoul-based ecosystem and serves the same end-markets (EV, ESS, mobility) but at vastly greater scale with established OEM relationships.
• Samsung SDI: Major Korean lithium-ion battery manufacturer serving automotive, ESS, and IT applications. A direct domestic incumbent to Greenergy, with deep R&D resources and global customer relationships across the same target segments.
• SK On: Korean lithium-ion battery manufacturer focused on EV cells, with major OEM contracts. As a fellow Korean battery company, SK On represents the kind of scale and customer depth Greenergy would need to achieve to be commercially viable.
• CATL: The world's largest lithium-ion battery manufacturer by capacity, supplying global automakers. Sets the cost and performance benchmarks that Greenergy must meet or differentiate against to win any commercial business.
• Panasonic Energy: Major Japanese lithium-ion battery manufacturer with deep ties to global automotive OEMs (notably Tesla). Comparable to Greenergy in product category but operates at gigawatt-hour scale with established cell technology and customer relationships.
• EVE Energy: Chinese lithium-ion battery manufacturer producing cells and packs for automotive, ESS, and consumer applications. Comparable broad battery-maker peer competing in the same end-markets Greenergy targets, with broader scale and product portfolio.
• Envision AESC: Global lithium-ion battery manufacturer (formerly Nissan-AESC) serving automotive and ESS markets with operations across multiple geographies. Comparable broad incumbent peer whose multi-region footprint highlights the geographic scale gap relative to Greenergy.

Direct peers

• Kokam: Korean specialist lithium-ion battery manufacturer focused on niche and high-power applications (ESS, military, marine, mobility). Closest comparable to Greenergy in scale, geography, and target market positioning as a Korean mid-tier battery company.
• Northvolt: Swedish lithium-ion battery manufacturer and cell technology developer founded by former Tesla executives. Highly comparable to Greenergy in mission (premium battery cell manufacturing targeting automotive and ESS), founder pedigree, and funding-stage profile, though at a larger scale.
• Microvast: US-listed lithium-ion battery manufacturer developing cells, modules, and packs for commercial vehicles and ESS. Comparable to Greenergy as a vertically integrated battery company targeting commercial and specialty mobility applications outside the dominant passenger-EV segment.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat2 records

Key risks6 records

Key highlights5 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds7 records

Investors8 records

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 Greenergy