BioLargo (BLGO) - Market capitalization

Market cap: £33.33 Million

As of April 2026 BioLargo has a market cap of £33.33 Million. This makes BioLargo the world's 9958th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.

Market cap history of BioLargo from 1997 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	£33.33 M	-18.5%
2025	£40.89 M	-14.75%
2024	£47.97 M	25.7%
2023	£38.16 M	-13.98%
2022	£44.36 M	9.51%
2021	£40.51 M	101.89%
2020	£20.06 M	-25.67%
2019	£27 M	8.17%
2018	£24.96 M	-14.4%
2017	£29.16 M	-51.61%
2016	£60.26 M	108.17%
2015	£28.95 M	75.37%
2014	£16.5 M	44.99%
2013	£11.38 M	8.43%
2012	£10.5 M	-12.55%
2011	£12 M	-28.41%
2010	£16.77 M	-10.24%
2009	£18.68 M	58.38%
2008	£11.79 M	-38.68%
2007	£19.23 M	3905.95%
2006	£0.48 M	1227.89%
2005	£0.03 M	-84.92%
2004	£0.23 M	-67.89%
2003	£0.74 M	-72.29%
2002	£2.69 M	-53.29%
2001	£5.76 M	24.75%
2000	£4.62 M	119.66%
1999	£2.1 M	25.71%
1998	£1.67 M	-52.35%
1997	£3.51 M

End of Day market cap according to different sources

On Apr 10th, 2026 the market cap of BioLargo was reported to be:

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
W. R. Grace GRA	£3.44 B	10,237.73%	🇺🇸 USA
Innospec IOSP	£1.39 B	4,097.31%	🇺🇸 USA
Lightwave Logic LWLG	£1.17 B	3,416.18%	🇺🇸 USA

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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Market capitalization of BioLargo (BLGO)

Market cap: £33.33 Million