![Benjamin Guest](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Benjamin Guest
Founder at
Hazel Capital LLP
Net worth: 19 M $ as of 31/05/2026
Profile
Mr. Benjamin J.
Guest is a Managing Director of Energy Transition at Gresham House Asset Management Ltd. He has been Managing Director and Head of the Gresham House New Energy division since November 2017.
He has over 27 years of investment experience.
Mr. Guest started his fund management career at Lazard Asset Management in 1994 and worked there for nine years.
He later founded Hazel Capital in April 2007, serving as Managing Partner and Chief Investment Officer and which became Gresham House New Energy on the acquisition of Hazel Capital’s business activities in November 2017.
Prior to founding Hazel Capital, he was a co-founder of Cantillon Capital, where he managed a US$1bn equity hedge fund focused on global technology, media and telecom.
Mr. Guest currently serves as a Director of over 50, mostly project, companies.
He holds a BEng in Mechanical Engineering from Imperial College.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
Gresham House Energy Storage Fund Plc
 Gresham House Energy Storage Fund Plc Investment Trusts/Mutual FundsMiscellaneous Functions as a closed-end investment fund or Investment trust 3.06% | 18/12/2024 | 17,394,485 ( 3.06% ) | 19 M $ | 31/05/2026 |
Benjamin Guest active positions
| Companies | Position | Start |
|---|---|---|
Hazel Capital LLP
 Hazel Capital LLP Investment ManagersFinance Hazel Capital invests in companies located in the United Kingdom. The firm focuses on companies operating in the field of transformative technologies such as solar power, electric transportation and energy storage. It participates in buyout transactions. | Founder | 01/04/2007 |
Santa Ana Master Fund | Director/Board Member | - |
HRE Willow Ltd.
 HRE Willow Ltd. Electric UtilitiesUtilities Provides electricity | Director/Board Member | 23/05/2011 |
Archway Holdings Ltd. | Director/Board Member | - |
New Enterprise LLP | Chairman | 17/05/2012 |
Archletter Ltd. | Chairman | - |
AEE Renewables UK 3 Ltd.
 AEE Renewables UK 3 Ltd. Engineering & ConstructionIndustrial Services Constructs and operates solar firms | Director/Board Member | 05/07/2011 |
AEE Renewables Uk 26 Ltd.
 AEE Renewables Uk 26 Ltd. Alternative Power GenerationUtilities Develops and manages solar farms | Chairman | - |
South Marston Solar Ltd.
 South Marston Solar Ltd. Alternative Power GenerationUtilities Operates as a holding company whose subsidiaries operates solar firms | Director/Board Member | 24/11/2011 |
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Former positions of Benjamin Guest
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Training of Benjamin Guest
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
42
1st degree connections
57
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 57 |
|---|---|
Lazard Asset Management Ltd.
 Lazard Asset Management Ltd. Investment ManagersFinance Lazard AM-UK is an active manager that manages across a wide range of global, regional and country-specific strategies - both traditional and alternative - in listed equity and fixed income. The firm follows a relative value investment philosophy and employs a bottom-up approach to seek higher-than-average returns which are undervalued. They construct portfolios based on in-house fundamental analysis performed by sector teams organized by industry. Their investment professionals integrate ESG analysis into their research and decision-making processes. | Finance |
Gresham House Renewable Energy VCT 1 Plc
 Gresham House Renewable Energy VCT 1 Plc Investment Trusts/Mutual FundsMiscellaneous Functions as a private equity fund | Miscellaneous |
Imperial College London
 Imperial College London Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Athena Investments ApS
 Athena Investments ApS Alternative Power GenerationUtilities Operates as a holding company through its subsidiaries generates wind and solar energy | Utilities |
Oxis Energy Ltd.
 Oxis Energy Ltd. Electrical ProductsProducer Manufacturing Manufactures sulphur polymer rechargeable batteries | Producer Manufacturing |
Archway Holdings Ltd. | |
Hazel Capital LLP
Hazel Capital LLP Investment ManagersFinance Hazel Capital invests in companies located in the United Kingdom. The firm focuses on companies operating in the field of transformative technologies such as solar power, electric transportation and energy storage. It participates in buyout transactions. | Finance |
Cantillon Capital Ltd.
 Cantillon Capital Ltd. Financial ConglomeratesFinance Provides investment management services | Finance |
Quiet Revolution Ltd.
 Quiet Revolution Ltd. Electric UtilitiesUtilities Develops and supplies elegant renewable energy solutions | Utilities |
Ingenious Film Partners 2 LLP
 Ingenious Film Partners 2 LLP Movies/EntertainmentConsumer Services Produces and delivers theatrical films | Consumer Services |
Santa Ana Master Fund | |
HRE Willow Ltd.
HRE Willow Ltd. Electric UtilitiesUtilities Provides electricity | Utilities |
New Enterprise LLP | |
Archletter Ltd. | |
AEE Renewables UK 3 Ltd.
AEE Renewables UK 3 Ltd. Engineering & ConstructionIndustrial Services Constructs and operates solar firms | Industrial Services |
AEE Renewables Uk 26 Ltd.
AEE Renewables Uk 26 Ltd. Alternative Power GenerationUtilities Develops and manages solar farms | Utilities |
South Marston Solar Ltd.
South Marston Solar Ltd. Alternative Power GenerationUtilities Operates as a holding company whose subsidiaries operates solar firms | Utilities |
Beechgrove Solar Ltd.
 Beechgrove Solar Ltd. Alternative Power GenerationUtilities Functions as a holding company and operates solar farms | Utilities |
Hewas Solar Ltd.
 Hewas Solar Ltd. Electric UtilitiesUtilities Provides electricity | Utilities |
St Columb Solar Ltd.
 St Columb Solar Ltd. Electric UtilitiesUtilities Provides electricity | Utilities |
Minsmere Power Ltd.
 Minsmere Power Ltd. Electric UtilitiesUtilities Provides electricity | Utilities |
Small Wind Generation Ltd.
 Small Wind Generation Ltd. Electric UtilitiesUtilities Provides electricity | Utilities |
Tumblewind Ltd.
 Tumblewind Ltd. Electric UtilitiesUtilities Provides electricity | Utilities |
Penhale Solar Ltd.
 Penhale Solar Ltd. Electric UtilitiesUtilities Provides electricity | Utilities |
Gloucester Wind Ltd.
 Gloucester Wind Ltd. Electric UtilitiesUtilities Provides electricity | Utilities |
ZW Parsonage Ltd.
 ZW Parsonage Ltd. Alternative Power GenerationUtilities Operates as a solar farm | Utilities |
New Energy Era Ltd.
 New Energy Era Ltd. Specialty StoresRetail Trade Provides retails sale via mail order or internet | Retail Trade |
Lux Energy Ltd.
 Lux Energy Ltd. Electric UtilitiesUtilities Produces electricity | Utilities |
Albarreal Solar Nueva Energia SL | |
EFP Reel LLP | |
Owl Lodge Solar (Holding) Ltd. | |
AEE Renewables Uk 6 Ltd. | |
AEE Renewables Uk 7 Ltd.
 AEE Renewables Uk 7 Ltd. Alternative Power GenerationUtilities Provides solar energy services | Utilities |
AEE Renewables Uk 13 Ltd.
 AEE Renewables Uk 13 Ltd. Alternative Power GenerationUtilities Engages in solar energy generation | Utilities |
AEE Renewables Uk 15 Ltd.
 AEE Renewables Uk 15 Ltd. Electric UtilitiesUtilities Generates solar energy | Utilities |
Causilgey Solar (Holding) Ltd. | |
Hazel Renewables Ltd.
 Hazel Renewables Ltd. Alternative Power GenerationUtilities Generates and distributes solar electricity | Utilities |
Higher Tregarne Solar (Holding) Ltd. | |
Vicarage Solar Ltd.
 Vicarage Solar Ltd. Electric UtilitiesUtilities Provides electricity | Utilities |
Yonder Netherton Solar (Holding) Ltd. | |
Gresham House Asset Management Ltd. (Investment Management)
 Gresham House Asset Management Ltd. (Investment Management) Investment ManagersFinance GH-IM’s Gresham House Strategic Public Equity focuses on investing in profitable, cash generative companies that the investment team believes are undervalued. When engaging with investee company stakeholders, including management, shareholders, customers and suppliers to exploit market inefficiencies and support a clear equity value creation plan, targeting above market returns over the long-term, the firm takes a hands-on approach. | Finance |
Ayshford Solar (Holding) Ltd.
 Ayshford Solar (Holding) Ltd. Electric UtilitiesUtilities Engages in solar electric power generation | Utilities |
Lunar 2 Ltd.
 Lunar 2 Ltd. Electric UtilitiesUtilities Operates as a holding company whose subsidiaries generates solar power | Utilities |
Gresham House Asset Management Ltd.
 Gresham House Asset Management Ltd. Investment ManagersFinance Gresham House invests in lower mid-market companies located in the United Kingdom and the United States. The firm targets companies operating in the fields of healthcare & education, consumer markets, technology, media & telecoms, and business services. It participates in seed stage, early stage, growth capital and buyout transactions. The firm acts as a lead investor or co-investor and participates in subsequent rounds. | Finance |
South Marston Renewables Ltd.
 South Marston Renewables Ltd. Alternative Power GenerationUtilities Produces and distributes solar electricity | Utilities |
Wathegar 2 Ltd.
 Wathegar 2 Ltd. Electric UtilitiesUtilities Produces electricity | Utilities |
Lunar 1 Ltd.
 Lunar 1 Ltd. Alternative Power GenerationUtilities Operates as a holding company for solar farms | Utilities |
Hazel Capital ESS 1 Ltd.
 Hazel Capital ESS 1 Ltd. Miscellaneous Commercial ServicesCommercial Services Provides other professional, scientific and technical services | Commercial Services |
Noriker Staunch Ltd.
 Noriker Staunch Ltd. Electric UtilitiesUtilities Supplies electricity | Utilities |
Glassenbury Battery Storage Ltd.
 Glassenbury Battery Storage Ltd. Other TransportationTransportation Provides battery storage facility services | Transportation |
Cleator Battery Storage Ltd.
 Cleator Battery Storage Ltd. Other TransportationTransportation Provides battery storage facility services | Transportation |
HC ESS2 Holdco Ltd.
 HC ESS2 Holdco Ltd. Electric UtilitiesUtilities Generates electricity | Utilities |
HC ESS2 Ltd.
 HC ESS2 Ltd. Electric UtilitiesUtilities Generates electricity | Utilities |
HC Ess4 Ltd.
 HC Ess4 Ltd. Electric UtilitiesUtilities Engages in production of electricity | Utilities |
HC ESS3 Ltd.
 HC ESS3 Ltd. Alternative Power GenerationUtilities Produces electricity | Utilities |
HC ESS6 Ltd.
 HC ESS6 Ltd. Electric UtilitiesUtilities Engages in production of electricity | Utilities |
HC ESS7 Ltd.
 HC ESS7 Ltd. Alternative Power GenerationUtilities Engages in production of electricity | Utilities |
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