Communication was great and they were very helpful throughout the process of getting the contract completed for the venue. The day of the event, we had a great experience with CSI Patrol Service. The guards were kind, punctual, professional, and always visible throughout the event. They treated all guests with respect and helped create a safe and welcoming environment. I would highly recommend their services. read more

CSI Patrol was easy to work with, scheduled right away and provided great service. Our building was unharmed during a recent termite fumigation and we felt more confident knowing they were onsite. read more

CSI Patrol has been the best security company I've worked with in the last 12 years since I have been with this property. Dennis is straightforward and doesn't promise anything; he just gets it done the right way the first time. The staff he employs are a terrific mirror representation of him, they get it done the right way. Here in Alamitos Beach, you hear and see the criminal activities; they are relentless. Once they find a way into a building, they keep coming back and tell their friends about it. CSI as a team has stopped them from that pattern in our building. The best choice for guard service. read more

Our recent interaction with Yelp left us thoroughly unimpressed and frustrated. Not only did we encounter numerous fake reviews that skewed others perception of our local business, but when we attempted to address the issue with Yelp's customer service, we were met with indifference and unhelpfulness. It's disheartening to see a platform that claims to prioritize transparency and authenticity fall short in such a significant way. Instead of fostering a community of genuine reviewers and honest feedback, Yelp seems more concerned with promoting businesses that are willing to pay for advertising, regardless of their actual quality. Our business and I can no longer in good conscience support a platform that prioritizes profit and advertising over the genuine experiences and feedback of its users. It's time for Yelp to do some serious reevaluation on its priorities if it wants to regain the trust of its user base. As a result of this, C.S.I. Patrol Service will no longer be using Yelp for our local business! Please find us on other platforms such as; Google, Facebook, Instagram & many more! read more

If your a business looking for quality security solutions please give this company a call as I will say as a former guard they are top notch! The management gives top pay for unarmed work idk for armed as I was unarmed. For a business point of view I will say this company is better then Securitas and Allied universal especially on how they always have a supervisor visit the site daily and even on weekends and holidays a supervisor is available plus the supervisors wears body cams so there in no way the guard and client and supervisor can lie about any incidents or any information that was said or not said. The company owner treated me like a close family member of his family especially when I got sick and could not respond to anyone in office he personally reached out to make sure I was ok and that means a lot plus the company could have fired me and they did not as I had no PTO or sick hours as I was just hired and got sick 2 weeks later. I went in after I was cleared to work from being in hospital and Dennis still wanted me to work still had me on schedule and made sure I was feeling well enough to be back on post. Now the reason I left the company was I found a job working non security for a union. read more

they are super rude and disrespectful. I was at one of the local businesses waiting outside for my ride to pick me up and one of their staff members drove up to me and told me i couldn't be there. I told them I was waiting for my ride and they didn't believe me they started harassing me, cussing at me and calling me names. This wasn't the first time i have had a horrible encounter with them. I deal with mental health challenges and they need to be retrained to speak to people with all different backgrounds on the same respectful level. read more

The best private security firm in Long Beach. All of the officers are trained very well, very professional, and has the upmost respect for their community. I'm talking from the entry-level security guards all the way up to the CEO of the company. Highly recommend it keep up the great work guys and gals. read more

I have to give the CSI team much deserved recognition for their dedication to the community. As a small business owner in Bixby Knolls I am ever grateful for their services. I've only needed to call a couple times over 6 months and their patrol officers are ON IT. Quick response time, extremely professional, aware and friendly. Thank you for making this business owner feel safe and thank you for all that you do!!! read more

Yelp profile says to call for a quote and hours are 24/7. Just called for a quote and was told that's only provided during business hours. How do I know what business hours are when your profile says "24/7". I will consider changing rating depending on how this issue is rectified read more

CSI is an amazing company to work for. The staff are relatable people and the work environment is healthy. As long as your doing your job you'll love this company. A lot of the security guards have been here for years. read more

Horrible service, can never find parking at my own apartment complex past 10, and don't expect anyone to help, especially "Saddie", drove around 30 min just to find parking and still had to park on the steeet. Thanks for your great service CSI. read more

I have been working with CSI Patrol Service for over 5 years and have nothing but great things to say about Dennis and his team! Very responsive and competitive pricing. I have used CSI for all types of services from roaming guard, nightly patrol (which the reports from these patrols are all online and are very detailed and it has pictures/location time stamps from the property) and event parking. I would highly recommend CSI for any of your security needs. read more

CSI recently ran security for a party we threw, and they were terrific to work with. Professional, courteous, and most importantly, kept us safe! Very happy to know they are around and will definitely use them again for a future event! read more

Have used them for the past few days at one of the buildings I manage, and am extremely happy with their service. They have exceeded all my expectations and then some. Dennis is extremely responsive and gives us great suggestion on how to improve our security. The patrol person on the premises walks around (other people we have hired just sit around) and actually talk to people to verify that they are supposed to be on the premises. Will definitely be hiring them in the future! read more

Fast, reliable and friendly service! Took care of all of our security needs.

CSI Patrol Service monitors our family run business in a large business park. They patrol our building frequently and always pay such close attention to detail that they always find at least 4 doors unlocked every night (other offices). I know my business is safe thanks to him and his carefully trained staff. Dennis is always available at all hours of the day or night for us and we appreciate it. I would hands down recommend them as they make me feel safe and I know they are more than trustworthy. read more

Contacted this company and the response was very unprofessional and rude. I was very offended and disappointed with my interaction with them. I had heard good things about this company and I was so disappointed. read more

Officer Anthony did a wonderful job for us! He arrived on time, helped with our parking situation, and did a great job with security. Thanks again for another successful evening. read more

Plain and simple, CSI is professional, reliable, and competitively priced. I've used them twice for my company which experienced some power outages thanks to the local electric utility provider. Great pricing, great communication. The owner Dennis actually picked up my call on his mobile phone at 11pm to help out with the 2nd instance in which we had no notice of the planned power outage. He had one of his security personnel on the scene within 1 hour. read more

CSI sent a great security officer who checked in with us on time, did a great job, and checked with us before leaving for the night. Impressive. Would totally use them again. read more

My company has used CSI Patrol Service for the past couple of years now. They patrolled my property and always followed up with me the next day just to check on me and the property. Only Excellent businesses would do something like that. Dennis and Adrianna are a pleasure to work with. Whenever I needed them they have always come through for us. They have always left a smile on my face. Freddie is another one part of the team who was amazing to work with as well. I wish I could give them more than 5 stars because they are very reliable, always responsive, and always 10 steps ahead. read more

CSI's personal protection services are over the top professional. I needed someone immediately and Dennis, the owner, sent someone immediately, arriving within 15 minutes of my call. He sent January, who was absolutely fantastic. Though tall, strong, and obviously capable should a problem arise, January maintained a calm non-threatening posture which helped diffuse the situation. Thank you Dennis and January for all your help. I think without January's uniformed presence there was a high likelihood there would have been a problem I couldn't handle. I know with his presence I felt safe to pack my belongings and manage the movers without constantly looking over my shoulder in fear. read more

Three months ago I was contracted with another security guard company whose guards would consistently be found asleep, on the phone or not making their rounds as required. After calling several other security companies, the owner of CSI Patrol & Security services seemed extremely up front, helpful and willing to make sure that our needs were met. CSI has been working for/with us now for over 2 months and we have not only not had any problems with any of the guards assigned to our location. The guards we have on-site always go above and beyond our expectations and have made fantastic suggestions on how to make our facility and property more secure. I cannot recommend this company highly enough and grateful to them for the service they provide. Thanks!!! read more

Reliable and professional service. CSI Patrol Service handled a large 4 day event we had in Yucaipa and they're great! Don't look any further than CSI when in need of a security company! read more