forumNew topic

A client making up 40% of my monthly revenue left one day — what did I do?

AAlper T***Member
Job title
IT manager
Sector
E-commerce
Organization type
family business
Joined
Oct 2024
Message
239
#1

in our second year, a big e-commerce company became a client. we were providing 50k lira worth of service monthly. if our total revenue was 120k, this client was 40%. i felt successful, maybe too successful.

then one day, the account manager called and said 'we're bringing the service in-house, so we don't need you anymore.' it was very blunt. nobody even gave a heads up. it was an immediate cut-off. 50k in revenue vanished overnight.

i panicked a lot. but then i learned: you shouldn't depend on a single client. if that client hadn't left, i might not have grown either (because i would've thought i was already successful). if the crisis hadn't happened, i wouldn't have found other clients waiting in the wings.

HHilal Z***MemberCommunity member
Joined
Dec 2024
Message
136
Most Helpful#2

if one client accounts for 30%+ of revenue, the risk is high. in business terms, this is called 'customer concentration risk.' a crisis is a bell that warns of this risk.

what to do: 1) diversify your client base (3 big clients < 5 medium clients). 2) don't let any single client exceed 30%. 3) track your customer churn rate.

HHaticeMember
Job title
Family business
Organization type
boutique agency
Joined
Jun 2024
Message
86
#3

i also lost a big client once, and at that moment, it felt like the end of the world. but then that crisis forced me to step out of my comfort zone. tbh now i have 10 clients.

EElif B***Member
Job title
Courier coordinator
Sector
Healthcare services
Organization type
a company within a holding
Joined
Dec 2023
Message
228
#4

if you're losing clients, what's the reason? was the service bad? did competition arise? did the client collapse on their own? if you don't find the reason, you'll lose them again.

EEsra U***MemberCommunity member
Joined
Feb 2026
Message
160
#5

When you lose a big client: 1) start analyzing (why did they leave?). 2) start diversifying clients (start new sales). 3) cut costs until you replace the revenue level of the lost client. 4) add a 'long-term lock' clause to the next big client contract.

KKemal Ö***Member
Job title
Co-founder
Sector
Cleaning services
Organization type
300-person organization
Joined
Oct 2023
Message
28
#6

Losing big clients reveals managerial skills. Bad managers panic and collapse. Good managers pivot their strategy — they find other clients.

KKoray T***MemberCommunity member
Joined
Jan 2023
Message
39
#7

i was very scared but then i said 'its good ill diversify.' i still miss that client a bit but it was healthy

AAycanMember
Job title
Corporate procurement
Joined
Dec 2023
Message
98
#8

Thanks a lot, I'll try it today.

FFatma C***MemberCommunity member
Joined
Sep 2024
Message
13
#9

Could you elaborate on that? The answer varies greatly by industry; there is no one-size-fits-all rule.

Good luck with that.

HHavva S***Expert
Job title
Clinic manager
Sector
Real estate
Organization type
two-branch business
Joined
Jun 2023
Message
176
#10

I've been dealing with this for a long time. I mean the harder it is to reverse a decision the slower you should make it.

If the gap between accounts receivable and accounts payable turnover days is widening, revenue won't save you. Good luck with that.

NNeslihan S***Member
Job title
Board member
Sector
Cosmetics
Organization type
medium-sized business
Joined
Sep 2025
Message
325

Doki · Server maintenance contract · 2023

#11

Let me speak from the other side; I'm on the supplier side. Just because everyone does it doesn't mean it's right.

Proven by experience.

AAycan K***Member
Job title
Data entry clerk
Sector
Logistics
Organization type
300-person organization
Joined
Jan 2023
Message
39
#12

we experienced almost the exact same thing last year then if it's your first time, start small; scaling coes later.

good luck with that.

ZZafer S***Member
Job title
Store associate
Sector
Insurance
Organization type
sole proprietorship
Joined
Dec 2025
Message
67
#13

Correct.

KKoray E***Expert
Job title
Software developer
Sector
Packaging
Organization type
chain store
Joined
Sep 2023
Message
25
#14

There's a common mistake people make when doing this. Everything goes well for the first three months; problems arise in the fourth.

Correct me if I'm wrong.

İİlker P***Member
Job title
Graphic Designer
Sector
Education
Organization type
early-stage startup
Joined
Nov 2022
Message
162
#15

Just a heads-up. Taking notes for two weeks yields better results than a six-month estimate.

If I were you, I'd go this route.

TTülay A***MemberCommunity member
Joined
Sep 2022
Message
147
#16

We got stuck at the same point for a while. The answer varies greatly by industry; there is no one-size-fits-all rule.

If you have questions, write them; I'll answer as best I can.

GGürkan U***Member
Job title
Technical service technician
Sector
Retail
Organization type
medium-sized business
Joined
Jan 2023
Message
2
#17

This is exactly what we experienced. Trying to do this alone is the most expensive way.

If you get three different answers on a topic, the question was asked wrong. Of course, it varies if your situation is different.

ÜÜmit B***Expert
Job title
System support specialist
Sector
Cosmetics
Organization type
medium-sized business
Joined
Apr 2025
Message
15
#18

I didn't know that.

EEsra I***MemberCommunity member
Joined
Dec 2023
Message
214
#19

Let me write how it's done in practice. If you get three different answers on a topic, the question was asked wrong.

Just because everyone does it doesn't mean it's right.

BBeyza K***MemberCommunity member
Joined
Mar 2024
Message
337
#20

I partly agree, partly disagree. Second-time founders don't make the same mistakes but find new ones.

If I were you, I'd go this route.

Reply