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BioLargo, Inc. (BLGO)

For informational purposes only. Not financial advice. Analysis by Sedat Aydin, Founder & Editor-in-Chief | AI-powered analysis. Data sourced from SEC filings and institutional-grade financial providers. Editorially reviewed. Not financial advice.

BioLargo, Inc. (BLGO) with AI Score 46/100 (Weak). BioLargo, Inc. is an environmental technology company focused on developing and commercializing innovative solutions for water treatment, odor control, and infection control. Market cap: 0, Sector: Basic materials.

Last analyzed: Mar 15, 2026
BioLargo, Inc. is an environmental technology company focused on developing and commercializing innovative solutions for water treatment, odor control, and infection control. The company holds patents and provides environmental engineering services.
46/100 AI Score

BioLargo, Inc. (BLGO) Materials & Commodity Exposure

CEODennis Calvert
Employees40
HeadquartersWestminster, US
IPO Year2007
IndustryChemicals

BioLargo, Inc. develops and commercializes environmental technologies, including advanced water treatment and odor control solutions, positioning itself within the basic materials sector. With a focus on addressing environmental challenges like PFAS contamination, the company aims to provide innovative and sustainable solutions for various industries.

Data Provenance | Financial Data Quantitative Analysis NASDAQ Analysis: Mar 15, 2026

Investment Thesis

BioLargo presents a compelling investment case centered on its innovative environmental technologies and growing market demand for sustainable solutions. The company's focus on addressing critical environmental challenges, such as PFAS contamination, positions it to capitalize on increasing regulatory pressures and market opportunities. Key value drivers include the commercialization of its Advanced Oxidation system and AEC technology, as well as the expansion of its CupriDyne Clean product line. With a gross margin of 43.9%, BioLargo demonstrates potential for profitability as it scales its operations. However, investors should be aware of the company's negative profit margin of -151.7% and the risks associated with operating in the competitive chemicals industry.

Based on FMP financials and quantitative analysis

Key Highlights

  • Market capitalization of $0.05 billion, reflecting its current valuation in the OTC market.
  • Gross margin of 43.9%, indicating the profitability of its core products and services.
  • Negative P/E ratio of -4.43, reflecting current losses but potential for future earnings growth.
  • Focus on addressing PFAS contamination, a growing environmental concern with increasing regulatory attention.
  • Portfolio of patented technologies, providing a competitive advantage in the environmental solutions market.

Competitors & Peers

Strengths

  • Innovative and patented technologies.
  • Focus on addressing critical environmental challenges.
  • Experienced management team.
  • Diverse product portfolio.

Weaknesses

  • Limited financial resources.
  • Negative profit margin.
  • Reliance on OTC market for trading.
  • Small market capitalization.

Catalysts

  • Ongoing: Commercialization of the Aqueous Electrostatic Concentrator (AEC) for PFAS removal.
  • Ongoing: Expansion of the CupriDyne Clean product line for industrial odor and VOC control.
  • Upcoming: Potential strategic partnerships and collaborations to expand market reach.
  • Upcoming: Expansion into international markets with growing demand for sustainable solutions.

Risks

  • Potential: Competition from larger and more established companies in the environmental solutions market.
  • Potential: Technological obsolescence and the need for continuous innovation.
  • Ongoing: Negative profit margin and limited financial resources.
  • Potential: Changes in environmental regulations that could impact the demand for BioLargo's products.
  • Ongoing: Dependence on the OTC market for trading, which can result in lower liquidity and higher volatility.

Growth Opportunities

  • Expansion of PFAS Treatment Solutions: The market for PFAS treatment is rapidly growing due to increasing regulatory pressure and public awareness. BioLargo's Aqueous Electrostatic Concentrator (AEC) technology offers a potential solution for removing PFAS from water sources, targeting a market estimated to reach billions of dollars in the coming years. Successful deployment and commercialization of the AEC could drive significant revenue growth for BioLargo.
  • Commercialization of Advanced Oxidation System (AOS): BioLargo's AOS technology offers an alternative approach to water treatment by generating oxidative species to remove contaminants. As industries seek more efficient and environmentally friendly water treatment solutions, the AOS presents a growth opportunity for BioLargo. The company can target industries such as agriculture, manufacturing, and wastewater treatment, with potential for licensing and direct sales.
  • Growth in Industrial Odor and VOC Control with CupriDyne Clean: BioLargo's CupriDyne Clean products address the growing need for odor and VOC control in various industrial settings. As companies face increasing regulations and consumer demand for cleaner air, the market for odor and VOC control solutions is expanding. BioLargo can leverage its CupriDyne Clean product line to target industries such as waste management, food processing, and manufacturing.
  • Strategic Partnerships and Collaborations: BioLargo can pursue strategic partnerships and collaborations to expand its market reach and accelerate the commercialization of its technologies. Collaborating with larger companies or research institutions can provide access to new markets, funding, and expertise. These partnerships can also help BioLargo validate its technologies and build credibility in the industry.
  • Expansion into International Markets: BioLargo can explore opportunities to expand its operations into international markets, where environmental regulations are becoming stricter and demand for sustainable solutions is growing. Targeting regions with significant water scarcity or pollution challenges can provide new avenues for growth. Adapting its technologies and products to meet local needs and regulations will be crucial for success.

Opportunities

  • Growing demand for sustainable environmental solutions.
  • Increasing regulatory pressure on PFAS contamination.
  • Potential for strategic partnerships and collaborations.
  • Expansion into international markets.

Threats

  • Competition from larger and more established companies.
  • Technological obsolescence.
  • Changes in environmental regulations.
  • Economic downturns.

Competitive Advantages

  • Patented technologies provide a competitive advantage.
  • Proprietary formulations and processes create barriers to entry.
  • Established relationships with key customers and partners.
  • Expertise in environmental engineering and technology development.

About BLGO

BioLargo, Inc., founded in 1991 and based in Westminster, California, is an environmental technology innovator focused on solving complex environmental challenges. The company invents, develops, and commercializes a range of platform technologies aimed at addressing issues such as per- and polyfluoroalkyl substances (PFAS) contamination, advanced water and wastewater treatment, industrial odor and VOC control, air quality control, and infection control. BioLargo holds numerous patents and maintains a pipeline of products designed to offer sustainable and effective solutions. Its core offerings include the Advanced Oxidation system, a water treatment device; the Aqueous Electrostatic Concentrator (AEC) for PFAS removal; CupriDyne Clean industrial products for odor and VOC control; and advanced wound care products. The company also provides full-service environmental engineering services, leveraging its technologies and expertise to deliver comprehensive solutions to its clients.

What They Do

  • Develops and commercializes environmental technologies.
  • Offers solutions for PFAS contamination.
  • Provides advanced water and wastewater treatment technologies.
  • Offers industrial odor and VOC control solutions.
  • Provides air quality control technologies.
  • Develops infection control products.
  • Provides full-service environmental engineering services.

Business Model

  • Sells and licenses its proprietary technologies.
  • Provides environmental engineering services.
  • Generates revenue through product sales, licensing agreements, and service contracts.

Industry Context

BioLargo operates within the basic materials sector, specifically in the chemicals industry, which is undergoing significant transformation due to increasing environmental regulations and growing demand for sustainable solutions. The market for water treatment technologies is expanding, driven by concerns over water scarcity and pollution. BioLargo's focus on PFAS removal and advanced oxidation positions it to compete with companies like AUXXF (Auxilio, Inc.), BIOF (Biofiltrations Environmental Inc.), DNCVF (Denison Mines Corp), FGPHF (Fluence Corporation Ltd), and ISVLF (InnoSepra Holdings Inc), offering differentiated solutions in niche markets.

Key Customers

  • Municipalities and government agencies seeking water treatment solutions.
  • Industrial facilities requiring odor and VOC control.
  • Healthcare providers seeking infection control products.
  • Commercial businesses needing environmental engineering services.
AI Confidence: 71% Updated: Mar 15, 2026

Financials

Chart & Info

BioLargo, Inc. (BLGO) stock price: Price data unavailable

Latest News

Analyst Consensus

Consensus Rating

Aggregated Buy/Hold/Sell recommendations from Benzinga, Yahoo Finance, and Finnhub for BLGO.

Price Targets

Wall Street price target analysis for BLGO.

MoonshotScore

46/100

What does this score mean?

The MoonshotScore rates BLGO's growth potential on a scale of 0-100 across multiple factors including innovation, market disruption, financial health, and momentum.

Leadership: Dennis Calvert

CEO

Dennis Calvert serves as the CEO of BioLargo, Inc., managing a team of 40 employees. His background includes extensive experience in environmental technology and business development. He has been instrumental in guiding BioLargo's strategic direction and driving the commercialization of its innovative technologies. Calvert's leadership focuses on addressing critical environmental challenges and creating sustainable solutions for various industries.

Track Record: Under Dennis Calvert's leadership, BioLargo has secured numerous patents and expanded its product portfolio to include advanced water treatment, odor control, and infection control solutions. He has overseen the development and commercialization of key technologies, such as the Advanced Oxidation system and the Aqueous Electrostatic Concentrator (AEC). Calvert has also focused on building strategic partnerships and collaborations to accelerate the company's growth.

BLGO OTC Market Information

The OTC Other tier represents the lowest tier of the OTC market, where companies may have limited or no financial reporting requirements. Unlike companies listed on major exchanges like the NYSE or NASDAQ, OTC Other companies often have less stringent listing standards, resulting in higher risk and lower transparency. This tier typically includes companies that are thinly traded, distressed, or have been delisted from major exchanges.

  • OTC Tier: OTC Other
  • Disclosure Status: Unknown
Liquidity: BioLargo, Inc.'s trading on the OTC market is characterized by potentially low trading volume and wider bid-ask spreads compared to stocks listed on major exchanges. This can make it more difficult for investors to buy or sell shares quickly and at desired prices. The limited liquidity can also increase price volatility and the risk of significant price swings.
OTC Risk Factors:
  • Limited financial reporting requirements increase the risk of information asymmetry.
  • Lower trading volume and wider bid-ask spreads can lead to price volatility.
  • Higher risk of fraud or manipulation due to less stringent regulatory oversight.
  • Potential for delisting or trading suspension due to non-compliance with OTC regulations.
  • Limited access to capital and financing options compared to companies on major exchanges.
Due Diligence Checklist:
  • Verify the company's financial statements and SEC filings, if available.
  • Research the company's management team and their track record.
  • Assess the company's business model and competitive landscape.
  • Evaluate the company's intellectual property and patents.
  • Review the company's legal and regulatory compliance.
  • Monitor news and press releases for any red flags or significant developments.
  • Consult with a qualified financial advisor before investing.
Legitimacy Signals:
  • Patented technologies and innovative solutions.
  • Focus on addressing critical environmental challenges.
  • Experienced management team.
  • Established relationships with key customers and partners.

Common Questions About BLGO

What does BioLargo, Inc. do?

BioLargo, Inc. is an environmental technology company that invents, develops, and commercializes various platform technologies to solve challenging environmental problems. Their focus areas include PFAS contamination, advanced water and wastewater treatment, industrial odor and VOC control, air quality control, and infection control. The company holds patents for its technologies and provides full-service environmental engineering services. Their products include the Advanced Oxidation system, Aqueous Electrostatic Concentrator, and CupriDyne Clean industrial products.

What do analysts say about BLGO stock?

As of March 15, 2026, there is no readily available analyst coverage or consensus for BioLargo, Inc. (BLGO) due to its OTC market listing and smaller market capitalization. Investors should conduct their own thorough due diligence, considering the company's financial performance, technological advancements, and market opportunities. Key valuation metrics to consider include revenue growth, gross margin, and potential for profitability as the company commercializes its technologies.

What are the main risks for BLGO?

BioLargo, Inc. faces several risks inherent to its business and industry. These include competition from larger and more established companies in the environmental solutions market, the risk of technological obsolescence requiring continuous innovation, and the company's current negative profit margin and limited financial resources. Additionally, changes in environmental regulations could impact the demand for BioLargo's products, and its dependence on the OTC market for trading can result in lower liquidity and higher volatility.

What are the key factors to evaluate for BLGO?

BioLargo, Inc. (BLGO) currently holds an AI score of 46/100, indicating low score. Key strength: Innovative and patented technologies.. Primary risk to monitor: Potential: Competition from larger and more established companies in the environmental solutions market.. This is not financial advice.

How frequently does BLGO data refresh on this page?

BLGO prices update in real time during U.S. market hours (9:30 AM-4:00 PM ET, weekdays). Fundamentals refresh after quarterly or annual filings. Analyst ratings and AI insights update daily. News is aggregated continuously from financial sources.

What has driven BLGO's recent stock price performance?

Recent price movement in BioLargo, Inc. (BLGO) can be influenced by earnings results, analyst revisions, sector rotation, and broader market sentiment. Notable catalyst: Innovative and patented technologies.. Check the News and Technical Analysis tabs for the latest drivers. Past performance does not predict future results.

Should investors consider BLGO overvalued or undervalued right now?

Determining whether BioLargo, Inc. (BLGO) is overvalued or undervalued requires examining multiple metrics. Compare valuation ratios (P/E, P/S, EV/EBITDA) against sector peers for a comprehensive view.

What research should beginners do before buying BLGO?

Before investing in BioLargo, Inc. (BLGO), research these four areas: (1) the company's revenue model and competitive position (see Company Overview), (2) financial health through revenue growth, margins, and cash flow (see MoonshotScore), (3) what Wall Street analysts recommend and their price targets (see Analyst tab), and (4) specific risk factors that could impact the stock (see Risk Factors section).

Disclaimer: This content is for informational purposes only and does not constitute investment advice. Always do your own research and consult a financial advisor.

Official Resources

Analysis updated AI Score refreshed daily
Data Sources & Methodology
Market data powered by Financial Modeling Prep & Yahoo Finance. AI analysis by Stock Expert AI proprietary algorithms. Technical indicators via industry-standard calculations. Last updated: .

Data provided for informational purposes only.

Analysis Notes
  • OTC market data may be less reliable than major exchange data.
  • Financial information may be limited due to disclosure requirements.
Data Sources

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