HRH Princess Anne visited on Friday Bishop Grosseteste University, Lincoln College and Lindum business park.
She unveiled plaques at all three locations and was presented posies.
The first visit was at Bishop Grosseteste University, where she toured the the new BG Futures managed offices for start-ups and the £2.75 million Cornerstone building.
At Lincoln College, Princess Anne toured the new Deans Sports and Leisure centre and was shown the £8 million facilities and learning opportunities for young people.
At Lindum in North Hykeham, the princess toured the business park, where she also met some of businesses on the premises.