Green Economy, with Microalgae.

Turning nutrients and CO₂ in water into valuable resources.

Effluent from factories and fish farms, or rivers, lakes and coasts with too many nutrients: microalgae take up the nitrogen, phosphorus and CO₂, clean the water, and turn them into biomass for feed and fertilizer. Bloomo, our AI-controlled cultivation system, makes it work.

Vision & Mission

Vision

Green Economy, with Microalgae.

We use algae to link two jobs into one loop: cleaning water and producing food. Algae take up CO₂, and take up nitrogen directly as ammonia, so in principle they skip the bacterial steps that release nitrogen oxides (NOx, N₂O). The goal is an economy where protecting the environment is also what makes a business profitable.

Mission

Microalgae × AI for water and food.

The nitrogen, phosphorus and CO₂ in wastewater, rivers, lakes and the sea are food for algae. We use AI and IoT to keep algae working reliably, so treatment plants, farms and waterside sites can run it every day.

For Novel Generation.Handing the next generation a safe planet and a living ocean.

* In bacterial nitrification and denitrification, NO and N₂O form along the way and part escapes to the air (Kampschreur et al., Water Res 43: 4093–4103, 2009). Microalgae assimilate ammonia directly into amino acids and skip these steps.

Value Proposition

One system, three values.

Treatment, biomass and CO₂ uptake at the same time. Algae feed on the nutrients already in the water, so the growth medium costs next to nothing (harvesting and drying have their own costs).

01

Clean water

Clean water

Algae take up nitrogen and phosphorus from the water and clean it. The system is designed to recover most of the nitrogen as algal protein rather than releasing it to the air.

02

Biomass

Biomass

The algae become raw material for aquaculture feed and agricultural fertilizer. Water you used to pay to treat now yields something you can use.

03

Carbon

CO₂ uptake

Algae take up CO₂ through photosynthesis and turn it into biomass. We assess the greenhouse-gas benefit by LCA, comparing against the materials replaced and including long-term storage such as biochar.

Less work on site

IoT lets us watch operation remotely and AI adjusts it, reducing the work on site. Rather than selling equipment and walking away, we keep delivering treatment and feedstock outcomes.

Key Technical Differentiators

A natural process, running steadily inside a machine.

Three technologies work together to treat nutrient-laden water without stopping and turn it into biomass.

  1. Algal Bloom Capture

    Recreating the algal bloom

    Under the right conditions microalgae multiply very quickly (an algal bloom). Ocean phytoplankton are estimated to photosynthesise on a scale comparable to land plants*. Bloomo puts this vigorous growth to work with selected, non-toxic strains, under control inside a closed system.

    Algal Bloom Capture (ABC) in detail →
  2. Selective breeding

    Selecting the right algae

    We keep a library built by non-GMO selective breeding and choose the strain that suits the water on site.

    The strain library in detail →
  3. IoT + MLOps

    Stable, continuous, fast culture

    IoT watches the culture and MLOps (continuously updating control models with operating data) is designed to keep high-density culture running steadily.

    IoT sensing and AI culture control in detail →

* Land and ocean are estimated to contribute roughly equally to global net primary production (Field et al., Science 281: 237–240, 1998); much of it returns to the air through respiration within a short time.

The process

  1. INNutrient-laden water and CO₂Effluent from factories and fish farms, or nutrient-polluted rivers, lakes and coasts, plus CO₂ from factories or fermentation
  2. BLOOMOContinuous algae cultureSelected algae grown at high density without stopping; IoT monitors, AI adjusts operation
  3. OUTTreated water and biomassCleaned water, plus algae for feed and fertilizer

Nitrogen is recovered, not vented

Customer Benefits

What you get, site by site.

The equipment, the strains and Bloomo Cloud are the same everywhere. What changes is the water that goes in and where the output goes.

AquacultureDemonstration

In:Farm waterBloomoOut:Live feed / feed・Clean water

Stronger production at lower cost

Your challenge

Feed and live-feed costs, losses in hot summers, farm effluent

What you get

  • Use algae grown on farm water as live feed and feed, replacing part of the fishmeal
  • Ease the burden of treating farm effluent and keep operations stable
  • Recover nitrogen as protein and work to cut N₂O emissions
Learn more →
BiogasR&D

In:Digestate・CO₂BloomoOut:Fertilizer・Treated water

Turning digestate treatment into resources

Your challenge

Nitrogen-rich digestate, the cost of nitrification and denitrification, CO₂ from gas upgrading

What you get

  • Developing ways to make digestate treatment lighter
  • Algae absorb the CO₂ separated during upgrading
  • Put the grown algae to use as fertilizer or digester feedstock
Learn more →
Industrial effluentR&D

In:Effluent・Waste heat・CO₂BloomoOut:Algae as raw material・Treated water

Lower treatment costs, new raw material

Your challenge

High-strength effluent, carbon regulation, unused waste heat and flue gas

What you get

  • Developing ways to make effluent treatment lighter
  • Turn effluent, waste heat and fermentation CO₂ into algae as raw material
  • Turn CO₂ uptake into environmental value with a sound accounting method
Learn more →
Municipal wastewaterR&D

In:N- and P-rich waterBloomoOut:Clean water・Fertilizer / biochar

Cleaner water, fewer emissions

Your challenge

Power for aeration, nitrogen and phosphorus limits, N₂O and lost resources

What you get

  • Explore with you how to integrate with existing treatment plants
  • Work to cut aeration power and operating costs
  • Recover nitrogen and phosphorus as resources and help curb N₂O
Learn more →
Rivers, lakes and coastsR&D

In:Nutrient-rich waterBloomoOut:Clean water・Fertilizer

Recovering the nutrients behind algal blooms and red tides

Your challenge

Harmful algal blooms and red tides in nutrient-rich waters, declining water quality

What you get

  • Recover nitrogen and phosphorus with selected algae
  • Work to reduce the nutrients behind algal blooms and red tides
  • Use the recovered algae, depending on the water source and analyses, e.g. as fertilizer
Learn more →

Note: Bloomo is in demonstration in aquaculture. Municipal, industrial, biogas and natural-water applications are in R&D; the points above are the goals we are working on now.

Products

Start small, grow to plant scale.

One approach, offered at the size you need.

Illustration of Bloomo mini, the Bloomo Cloud dashboard and a plant-scale Bloomo

Bloomo mini

Modular units that retrofit to existing facilities, so you can start small.

Bloomo Cloud

Remote monitoring and control of every unit; operating data improves control site by site.

Bloomo max

Plant-scale continuous culture, to be offered after large-scale demonstration.

Product and technology pages

Safety & Compliance

How we handle safety, quality and data

The principles we hold to, so municipalities and companies can evaluate us with confidence.

Uses depend on the water source

Whether algae go to feed or fertilizer depends on the source water and on analyses (heavy metals, pathogens and more). Algae grown on municipal sewage go to non-feed uses such as fertilizer and biochar. Feed and fertilizer uses are checked against the applicable laws.

Grown inside a closed system

We culture and harvest non-GMO strains confirmed not to produce toxins, inside the unit.

Treated water is checked too

We analyse treated water against discharge standards and the conditions of the receiving water, and harvest the algae so they do not remain in it.

Every figure is labelled

Figures on this site carry labels such as “literature value” or “theoretical value”. Our own demonstration data is shared individually under NDA.

Data and IP are agreed up front

Before a PoC we agree in contract on objectives and success metrics, duration, cost sharing, and how operating data and IP are handled.

How to start

Start small, measure, then scale.

  1. STEP 1Site surveyWe look at flow and water quality (nitrogen, phosphorus, COD and more), CO₂ and heat, and available space.
  2. STEP 2Strain match and bench testWe test strains from our library on your actual water.
  3. STEP 3PoCSmall and short, with removal, yield and other success metrics, and the criteria for going further, agreed up front.
  4. STEP 4Full deploymentChoose sale, lease or licence, operated on Bloomo Cloud.

Start by telling us about your water.

With the flow, the water quality and how you treat it today, we can suggest where to begin.

Contact us

FAQ

Frequently asked questions

What does Novelgen do?

Novelgen is a startup founded in 2019 in Nagahama, Shiga, Japan. We use microalgae and AI to turn the nutrients (nitrogen and phosphorus) and CO₂ in water into resources such as feed and fertilizer.

What is Bloomo?

Bloomo is a system for continuous microalgae culture. IoT monitors the culture and AI adjusts operation. It works together with Bloomo Cloud, our remote monitoring service.

Where can it be used?

Bloomo is in demonstration in aquaculture today. Applications in municipal wastewater, industrial effluent, biogas, and nutrient-rich rivers, lakes and coasts are in R&D.

Do you use genetically modified algae?

No. We choose non-GMO selected strains that suit the water on site and have been confirmed not to produce toxins.

How does a project start?

We go step by step: site survey, strain selection and testing, a small and short PoC, then full deployment. Start by choosing “Deployment or pilot (PoC) inquiry” on our contact form.

Traction & Evidence

Novelgen in Numbers

Our track record as an R&D startup, backed by third-party evidence

¥1.247B

SBIR Phase 3 subsidy cap (MAFF, through Mar 2028)

25+

Competitive Grants Awarded

12

IP assets (internal count)

12+

Awards & Certifications

Note: this is the subsidy cap of MAFF’s SME Innovation Promotion Program (SBIR Phase 3 fund) as published by the Nagahama Institute of Bio-Science and Technology (through March 2028). It is non-repayable, non-dilutive public R&D funding, not equity raised. Counts are internal (as of November 2026); the main awards and grants are listed on the Media & Awards page.

1.83t-CO₂ / t-DW

Theoretical CO₂ taken up by photosynthesis per tonne of algal biomass (dry weight), assuming 50% carbon; not a net reduction

Net reductions will be assessed by LCA (ISO 14040/14044) including power, CO₂ supply, harvesting and drying. The literature behind our figures is published on the evidence page.

View the Evidence Page
2019Founded
22Team Members
Shiga, JPR&D Base (Lake Biwa)
About Us

Company

An R&D startup using science to protect the planet

About the company

Novelgen Co., Ltd. was founded in 2019 in Nagahama, Shiga, Japan. Using microalgae and AI, we develop Algal Bloom Capture, a technology that turns the nutrients and CO₂ in water into resources such as feed and fertilizer, and Bloomo, our cultivation system. Our head office is in Nagahama, Shiga, with a base in Tokyo. For our vision and mission, see “Vision & Mission” near the top of this page.

MicroalgaeBioinformaticsCO₂ FixationAquacultureSustainability

2019

Founded

Shiga & Tokyo

Locations

22

Team Size

12

IP Assets

Team

A team of specialists working on global problems

Atsushi Ogura
CEO

Atsushi Ogura

Ph.D. Specializing in genetic engineering, microbial microalgae science, and genome evolution. Founded Novelgen to put research to work in society. Also serves as a university professor. Faculty of Agriculture, Graduate School of Agricultural and Life Sciences, SOKENDAI.

LinkedIn
Koichi Kudo
CSO

Koichi Kudo

Chief Strategy Officer. Responsible for intellectual property at food, pharmaceutical, and chemical manufacturers, and business strategy at a consulting firm. A patent attorney who formulates business strategies based on IP portfolio development. Graduate School of Agriculture, Tohoku University; Univ. of Washington, School of Law LL.M.

LinkedIn
Takeshi Naraki
CDO

Takeshi Naraki

Chief Development Officer. Responsible for establishing process development methodology and mass production technology at a chemical manufacturer. Overseeing product development management. Graduate School of Science and Engineering, Waseda University.

LinkedIn
Kohei Kawasaki
CMO

Kohei Kawasaki

Chief Marketing Officer. Expanded the oyster distribution business at Japan's largest domestic oyster processing manufacturer and opened Japan's first oyster export business to the EU. Appointed as a Ministry of Agriculture, Forestry and Fisheries GFP Partner.

For Investors & Partners

For investors and business partners

How the business is progressing, our approach to R&D and IP, and our funding: the information you need is gathered on our investor page.

We'd like to hear from you

Let's explore the possibilities of microalgae together.

Contact Us