Offices   •   Coworking   •   Meetings

OPO Startups is a place where entrepreneurs, remote workers & small businesses can have meetings, work & collaborate.


OPO Startups, LLC is an innovation hub and co-working center for digital startups. Anchored by the renovated 1909 "Old Post Office" and including six additional surrounding buildings, the campus provides over 50,000 square feet of space in Historic Downtown Saint Charles. OPO offers affordable workspace and access to mentors, potential investors, programming, educational resources, and a community of local entrepreneurs.

At OPO we promote and grow the regional digital startup community in St. Charles.

Partnership and Sponsorship Opportunities

OPO Startups is always looking to partner with area businesses and organizations. Contact Us to talk about our partnership/sponsorship opportunities and to see if we’re a good fit for each other.

Sponsorship Levels
  • Founding Partners: $10,000+
  • Postmaster General: $5,000-$10,000
  • Postal Carrier: $2,500 - $5,000

Are you looking for a conducive environment to grow your company?

Check out the benefits of OPO below!
Tech Talks
The 3rd Wednesday of each month, join us at 5:30pm for entrepreneur education, resources and networking.
Coffee Hour
Freshly ground & brewed coffee is made throughout the day for members.
Need a snack break? We now offer a fully stocked snack bar with a variety of foods to choose from.
Weekly Cafe
Every Tuesday at noon, lunch is on us! Meet new members and collaborate with others in the startup community.
Conference Rooms
Two conference rooms are available for scheduled meetings. Members can book a time through the OPO Website.
Wellness Center
No need to keep your old gym membership... With OPO you receive free 24/7 gym access. - 124 S. Main
State-Of-The-Art Podcast Studio
A fully equip sound studio is available to all members for their podcast, video & other recording needs.
As a member of OPO you will gain a network of designers and developers who can help you build your company!
Dedicated Mailbox
A mailbox is dedicated to members with desk spaces or private offices. All other members have the option to purchase a mailbox for $50/mo.
Common Area & Outdoor Patio
OPO’s common area has ping-pong, cozy couches, snacks, refreshments and an outdoor patio with views of the Missouri River!
Community Manager
Whether you need resources, advice, coffee or just a smiling face, our community manager is here to help!
Fiber Internet
High Speed internet is included with all OPO memberships.

Co-Working, Meeting Rooms & Private Offices Available

Entrepreneurs, Freelancers, Remote Workers, Small Businesses & More!
starting at
 $200 / month

1 Membership

Shared Community Room

9am-5pm / Monday-Friday

Limited Meeting Room Access

Networking & Resources



starting at
 $350 / month

1 Membership

1 Dedicated Desk Space

24/7 Access

Wellness Center

Mailing Address & Mailbox

Meeting Room Access

Networking & Resources

starting at
$550+ / month

1+ Memberships

1 Private Office Space

24/7 Access

Wellness Center

Mailing Address & Mailbox

Meeting Room Access

Networking & Resources

Conference Room Rental
starting at
$75 / hour

Formal Conference Area

Room Seats 10 People

8am-4pm / Monday-Friday

50" HD Smart TV

ChromeCast & HDMI Plugin

Fiber Internet & Wi-Fi

Free Water & Coffee

Included Services
  • Fiber Internet with Wi-Fi
  • Coffee & Snacks
  • Shared Conference Rooms
Additional Services
  • Admin Fee - $50/person (one-time fee)
  • Lockers - $25/month
  • Mailbox & Address - $50/month
  • Reserved Parking - $75/month
  • Non-Member Day Pass - $20/day
Broker Partnership
  • Get paid fast & efficiently!
  • Brokers Receive 10% of year 1 contract
  • New Business Only

If you have a question or would like more information, complete the form below.

To schedule a tour, fill out the form below or email We will contact you to confirm your tour date. Tours usually take 30 minutes.

OPO's facility is NOT AN EVENT SPACE and can not be rented out.