Before embarking on launching his consultancy firm, Dr. Agbesi worked as a Risk Manager for Masai Developers and received several awards for exceptional performance.

Lash Group was launched with a few consulting jobs and quickly grew in reputation within the sub-region. For example, in 1996 the company was chosen by Caisse Francais de Development for a few key consultancy jobs. As Mr. Agbesi’s network grew, he was invited to join such prestigious groups as the Committee for Poverty Alleviation for Africa, which met in Washington DC in 2000.

Since 1998, Lash Group launched and developed capacity for Arobase Telecom in Ivory Coast, which faced the enormous challenge of competing directly against France Telecom. Dr. Agbesi negotiated deals with such industry leaders as CIENA in 2002. Today, Arobase is the No.2 telecommunications operator in Ivory Coast, which was sold to MTN Cote D’Ivoire.

Lash Consult Investments consults to the Canadian engineering company SNC Lavalin, who is known as the No.2 emerging company in the world. In 2003, Dr. Agbesi formed part of the team who won the bid for SNC for the WAPP Interconnectivity Project sponsored by the World Bank (Ghana – Togo – Benin).

In 2003, Lash consult partnered with Tranxxcon to finance and launch Ghana Electrometer. The Factory to produce electrometers was built as an African partnership through Lash Consult between Ghana, Tranxxcon and El Swidy (Egypt) and represents the first factory of its kind in the sub-region. Today, Dr. Agbesi is a shareholder of the venture that employs over 400 people and exports all across the continent.

In 2003, Lash Consult Investments moved its headquarters to South Africa where Dr Agbesi is expanding the financing capacity of the company. The company is committed to diversifying its capital base so that it can begin to finance projects independently. For example, the company plans to pursue opportunities in the petroleum sector across the continent. In 2006, Lash Consult Petroleum won the contract to build the second -largest oil tank farm in Benin.

In 2006, Dr. Agbesi was the Main Advisor for the reforms in the oil sector in Benin which brought back the National Oil Company SONACOP to the Government of Benin. Between 2006 and 2010, Dr. Agbesi was appointed Adviser Vice President to SNC Lavalin Africa. Further to that, Dr. Agbesi was also an Advisor to many African Countries on the structural reform plan to the Department for International Development (DFID).

Dr Agbesi is the co-founder and Vice President to Barak Agricultural Fund, a trade and agricultural commodity fund with assets under management of US$500m.

On 01 July 2008, Dr Agbesi was appointed as a Provincial Advisory Board Member to the Absa Barclays Gauteng in the Republic of South Africa.

He is the Executive Chairman to the Pan African Business Forum and the only black African Member of the International Congress of Entrepreneurs of Russia.

In March 2015, Dr Agbesi was the co-founder and Chairman of ANA (African News Agency) based in Cape Town, South Africa.

On 13/06/2015 in Ghana (Accra), Ladislas Prosper Agbesi was awarded an honorary doctorate degree by the Great Achievers University College and the Seminary and Team Impact Christian University in the US and Spain for his total commitment to the growth of business development and service to humanity with right and privileges appertaining thereto.

Dr Agbesi was a presidential candidate for the 2016 Benin National Election that was held on the 06^th March 2016, representing his political party, ANC (Alliance Des Nouveaux Congrés) – Nouvelle Generations.

From June 2016, Dr Agbesi was instrumental in the implementation of the “Intermediary Power and Energy Solution” (IPS) for Africa”, which addresses the energy deficit of the African continent.

On 7th November 2019 in Dubai (United Arab Emirates) at the 16th Africa Security Watch Award, Dr Ladislas Prosper Agbesi was awarded an award by the Africa Security Watch as “The most outstanding peace and security personality in West and Central Africa”. On behalf of the Security Watch Africa’s Board of Trustees, Executive Committee and 2019 Awards’ Panel of Judges, Dr Ladislas Prosper Agbesi was conferred the award after a careful assessment of his commitment and dedication in his exemplary leadership qualities, innovativeness, quality service and effective democratic principles in bringing about security and safety in the Republic of Benin and beyond, while also spearheading a result-oriented business management forum through the Pan African Business Forum, which was found exemplary in Africa.

In August 2022, Dr Agbesi (on behalf of the Pan African Business Forum) was accepted as an honorary member of “Club Des Leaders’’, the highest-ranking membership within the Club.  Club Des Leaders is a Geneva based business networking organisation founded in 2010 with offices across seven (7) cities: Geneva, Gstaad, Monaco, London, Luxembourg, Paris and Zurich. Amongst its 520 members, Club Des Leaders has many high profile, influential, powerful and prominent business leaders and decision-makers who occupy important position in the economy, politics, culture, art or philanthropy.