3 British Growth Stocks To Watch In September 2026

Simply Wall St · 2d ago

UK services activity is showing modest growth, which hints at a gradually improving backdrop for many British companies. That makes financially sound UK growth stocks with strong earnings potential especially interesting. This article looks at three stocks from a screener that filters for healthy balance sheets and analyst forecasts of solid earnings growth over the next 3 years. You will see why these growth candidates may deserve a closer look now.

The stocks highlighted below are just a small sample from this idea. The full screen surfaced 31 more companies with similarly compelling stories that are not covered here. If you want to move straight from reading to building a watchlist, use the Healthy high growth potential screener to identify and analyze the candidates that best fit your own conviction and risk profile.

RentGuarantor Holdings (AIM:RGG)

Overview: RentGuarantor Holdings runs an online platform in the UK that provides digital tenant referencing, guarantor services and rent guarantee products for residential landlords and letting agents, aiming to build recurring fee income from the rental market. The company also offers broader property rental services, but the RentGuarantor platform is the clearest link to the Healthy high growth potential theme.

Operations: RentGuarantor generates all of its roughly £4.8 million in revenue from Internet Information Providers services in the United Kingdom.

Market Cap: £147.4 million

RentGuarantor Holdings may appeal to investors who want focused exposure to the UK rental market’s digital shift. The RentGuarantor platform targets recurring fees from tenant checks and rent guarantees, which aligns with analyst expectations for higher earnings and revenue in coming years. Recent results show a move from losses to profit at the half year stage, and management is guiding to materially higher revenue and net profit by 2026, although forecasts always carry uncertainty. On the other hand, the shares trade on a premium valuation and the business relies on external borrowing and fresh equity, which introduces execution and dilution risk. For those interested in proptech driven growth, this is a story that some investors may choose to monitor closely.

RentGuarantor Holdings is shifting from a story stock to a numbers-driven proposition, with analysts expecting stronger earnings ahead. Get the context behind that optimism, plus key balance sheet and dilution risks, in the analysis report for RentGuarantor Holdings.

AIM:RGG Earnings & Revenue Growth as at Sep 2026
AIM:RGG Earnings & Revenue Growth as at Sep 2026

Anglo Asian Mining (AIM:AAZ)

Overview: Anglo Asian Mining is a Baku based miner that explores for and produces gold, copper and silver in Azerbaijan, with earnings expectations closely tied to output growth from its active gold and copper operations. The company’s producing mines are directly linked to the Healthy high growth potential theme, since analysts associate its forecast earnings expansion with developing reserves and increasing production of these metals.

Operations: Anglo Asian Mining generates all of its roughly US$123 million in revenue from mining operations in Azerbaijan.

Market Cap: £474.5 million

Anglo Asian Mining provides direct exposure to growing gold and copper production in Azerbaijan, with analysts expecting earnings to rise on the back of higher output and a solid return on equity profile. Recent figures show copper and silver production gathering pace, which supports the growth story but also increases reliance on successful reserve development and stable metal prices. The company is profitable and led by a long tenured management team, yet carries a premium valuation and some governance questions around board independence that investors may wish to weigh carefully. Share price volatility and a history of earnings decline mean the growth case involves notable risks, which is one reason some investors may want to examine it in more detail.

Anglo Asian Mining’s growth story is tightly linked to gold and copper output, yet many investors may not be joining the dots. The analyst forecasts for Anglo Asian Mining could reveal how that production profile really stacks up against the key risks.

AIM:AAZ Earnings & Revenue Growth as at Sep 2026
AIM:AAZ Earnings & Revenue Growth as at Sep 2026

Metals Exploration (AIM:MTL)

Overview: Metals Exploration is a London based mining company that explores, develops and operates gold and other precious and base metal projects. Its 100% owned Runruno gold project in the Philippines is the main asset that ties it directly to the Healthy high growth potential theme as it moves from exploration toward long term production.

Operations: Metals Exploration generates all of its roughly US$208 million in revenue from gold and other precious metals mining in the Philippines.

Market Cap: £507.7 million

Metals Exploration provides focused exposure to a single, flagship project in Runruno, which underpins analyst expectations for significant earnings growth and a potentially high return on equity over the next few years. Forecast revenue expansion and high quality earnings suggest the current production profile may only be part of the story, while recent access to the Batong Buhay copper gold project adds longer term potential if exploration work is successful. At the same time, a premium P/E, a funding model that leans on borrowing and the natural risks of operating mines in the Philippines mean this is not a low risk proposition. For growth oriented investors, that combination of upside and financial risk is a key consideration when assessing Metals Exploration.

Metals Exploration’s growth story around Runruno and Batong Buhay could be stronger than many investors assume, yet the premium P/E and funding mix may be masking a key twist. The analyst forecasts for Metals Exploration might change how you see the next chapter.

AIM:MTL Earnings & Revenue Growth as at Sep 2026
AIM:MTL Earnings & Revenue Growth as at Sep 2026

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.