Protestors are hoping to persuade sponsors to come forward to save the Cleveland police horse section.
The unit is due to be axed as part of moves to save millions of pounds from the force's budget.
The campaigners, who are known as Save Our Section (SOS), marched on Cleveland police headquarters, to hand petitions and protest e-mails to the Chief Constable Jacqui Cheer.
Ms Cheer says the decision to disband the unit is based purely on financial considerations and is no reflection on its work.
The Chief Constable has indicated she would be prepared to consider a sponsorship plan, but has warned any deal would cost between £500,000 and £600,000 a year for three years.
Watch interview clips with campaigner Jackie Elder and Chief Constable Jacqui Cheer here:
Dozens of protestors have marched on Cleveland police headquarters in their fight to save the force's mounted unit.
The section is due to be disbanded next year as part of cost saving measures.
Cleveland's Chief Constable, Jacqui Cheer, says her decision is based purely on financial reasons and is no reflection on the work of the mounted unit.
The protestors say the horses provide much-needed reassurance to the public.
They are now hoping private sponsors will come forward to pay for the unit.
Ms Cheer says she would consider private funding, but it would require a guaranteed five to six hundred thousand pounds a year, for the next three years.