Biddy

The platform of record for public works bidding.

Every bidder, the same documents. On the record. Public bids run on one unforgiving rule: every contractor has to be working from exactly the same set. Biddy distributes your drawings, tracks every planholder, and proves every addendum was delivered, so the bid stands up and the record is never in question.
NOTICE TO BIDDERS
Sealed bids will be received by the Office of the City Clerk, City Hall, 214 Municipal Avenue, Millstone, North Dakota, until 11:00 a.m. on Thursday, June 18, 2026, at which time the bids will be publicly opened and read aloud in the council chambers for the construction of street resurfacing and utility repairs.
The work shall generally consist of asphalt milling, bituminous pavement overlay, curb and gutter replacement, storm sewer inlet repairs, sidewalk patching, pavement markings, and traffic control.
Each bid shall be accompanied by a certified check or bid bond in the amount of five percent (5%) of the total bid. The City reserves the right to reject any or all bids and to waive informalities.
Plans, specifications, and contract documents may be examined and obtained electronically through the planroom upon registration as a planholder. Addenda will be issued only through the planroom.
The successful bidder shall furnish performance and payment bonds, each in the amount of one hundred percent (100%) of the contract price, prior to commencement of the work.
The Owner reserves the right to reject any or all bids, to waive any informalities or irregularities, and to award the contract in the best interest of the project.
ADVERTISEMENT FOR BIDS
The Cedar Hollow Water District invites sealed bids for the replacement of approximately 6,400 linear feet of cast iron water main with ductile iron pipe, including service reconnections, valves, hydrants, and pavement restoration.
Plans and specifications may be examined at the office of the District Engineer or obtained electronically through the planroom upon registration as a planholder.
A pre-bid conference will be held at 10:00 a.m. on June 9, 2026, at the District operations building. Attendance is strongly encouraged but not mandatory.
INVITATION TO BID
The Northfield Consolidated School District is accepting sealed bids for the complete tear-off and replacement of the roofing system at Lincoln Elementary School, including insulation, membrane, flashing, and associated sheet metal work.
All work must be substantially complete prior to August 18, 2026. Contractors shall coordinate all activities with the District to avoid disruption of summer programming.
Each bid shall be accompanied by a certified check or bid bond in the amount of five percent (5%) of the total bid as a guarantee of execution.
The successful bidder shall furnish performance and payment bonds, each in the amount of one hundred percent (100%) of the contract price, prior to commencement of the work.
LEGAL NOTICE: REQUEST FOR BIDS
The County Highway Department will receive bids for the rehabilitation of the Maple Creek Bridge deck, including hydrodemolition, reinforcing steel repair, latex-modified concrete overlay, and joint replacement.
Prospective bidders must hold a valid prequalification rating with the State Department of Transportation in the applicable work class as of the bid date.
The successful bidder shall furnish performance and payment bonds, each equal to the full contract amount, prior to commencement of the work.
Questions regarding the project shall be submitted in writing through the planroom no later than five (5) business days prior to the bid opening.
Bids shall remain firm and may not be withdrawn for a period of sixty (60) days after the scheduled time for the opening of bids.
NOTICE TO CONTRACTORS
The Regional Wastewater Authority solicits bids for improvements to the Riverside Treatment Plant, including a new headworks structure, screening equipment, electrical and SCADA upgrades, and site civil work.
Each bid shall include an acknowledgement of all addenda issued through the planroom. Failure to acknowledge addenda may result in rejection of the bid.
ADVERTISEMENT FOR BIDS
The Parks and Recreation Department requests bids for site improvements at Veterans Memorial Park, including playground equipment, poured-in-place safety surfacing, concrete walkways, site furnishings, and landscape restoration.
The successful bidder shall furnish all labor, materials, tools, equipment, and transportation required for the full and complete performance of the contract.
Plans, specifications, and contract documents may be obtained electronically through the planroom upon registration as a planholder. Addenda will be issued only through the planroom.
Prevailing wage rates as determined by the Department of Labor shall apply to all work performed under this contract.
NOTICE TO BIDDERS
The Township of Brookside will receive sealed bids for the replacement of rooftop HVAC units and associated controls at the Municipal Services Building, including demolition, rigging, ductwork modifications, and balancing.
Bidders shall conduct a mandatory site walkthrough on June 11, 2026. No bid will be accepted from any contractor who did not attend.
Each bid shall be accompanied by a bid bond or certified check in the amount of ten percent (10%) of the total bid.
Work shall be substantially complete within one hundred twenty (120) consecutive calendar days from the date of the notice to proceed, with liquidated damages applying for each day of late completion.
The Township reserves the right to reject any or all bids and to waive any informalities or irregularities in the bidding process.
Plans, specifications, and contract documents are available electronically through the planroom upon registration as a planholder.
INVITATION TO BID
The Sanitary Sewer Authority invites bids for the trenchless rehabilitation of approximately 18,000 linear feet of sanitary sewer main by cured-in-place pipe lining, including service lateral reinstatement and manhole rehabilitation.
Bonds shall be furnished by a surety authorized to do business in the State and listed in the current U.S. Treasury Circular 570.
Prevailing wage rates as determined by the Department of Labor shall apply to all work performed under this contract.
ADVERTISEMENT FOR BIDS
The School Building Authority requests bids for the construction of a synthetic turf athletic field, including earthwork, drainage, base aggregate, turf system, fencing, and site lighting at Riverside High School.
Liquidated damages in the amount of $1,500 per calendar day shall apply for each day the work remains incomplete beyond the contract completion date.
Each bid shall be accompanied by a certified check or bid bond in the amount of five percent (5%) of the total bid as a guarantee of execution.
The successful bidder shall furnish performance and payment bonds, each in the amount of one hundred percent (100%) of the contract price, prior to commencement of the work.
Bids shall remain firm and may not be withdrawn for a period of sixty (60) days after the scheduled time for the opening of bids.
NOTICE TO CONTRACTORS
The City of Lakemont will receive bids for the construction of Fire Station No. 4, a single-story masonry and steel structure of approximately 11,200 square feet, including apparatus bays, living quarters, and site work.
Prevailing wage rates as determined by the Department of Labor shall apply to all work performed under this contract.
LEGAL NOTICE: REQUEST FOR BIDS
The Department of Public Works will receive bids for the installation of traffic signal systems and pedestrian improvements at five intersections along the Route 9 corridor, including mast arms, controllers, detection, and signing.
The work shall be coordinated with the State to maintain traffic flow during all phases of construction.
Bids shall remain firm and may not be withdrawn for a period of forty-five (45) days after the scheduled bid opening.
Questions regarding the project shall be submitted in writing through the planroom no later than five (5) business days prior to the bid opening.
INVITATION TO BID
The Redevelopment Authority invites sealed bids for the demolition and abatement of three vacant commercial structures, including hazardous material removal, foundation removal, backfill, and site stabilization.
All abatement work shall be performed by contractors licensed and certified in accordance with State and Federal regulations.
The Authority reserves the right to reject any or all bids, to waive any informalities or irregularities, and to award the contract in the best interest of the project.
A mandatory pre-bid site visit will be held at 10:00 a.m. on June 12, 2026; attendance is a condition of bid eligibility.
Plans, specifications, and contract documents may be obtained electronically through the planroom upon registration as a planholder.
Bids shall remain firm and may not be withdrawn for a period of sixty (60) days after the scheduled time for the opening of bids.
ADVERTISEMENT FOR BIDS
The Borough of Fairview requests bids for ADA-compliant sidewalk and curb ramp reconstruction at various locations, including detectable warning surfaces, driveway aprons, and pavement restoration.
Work shall be substantially complete within ninety (90) consecutive calendar days from the date of the notice to proceed.
Each bid shall be accompanied by a certified check or bid bond in the amount of five percent (5%) of the total bid as a guarantee of execution.
NOTICE TO BIDDERS
The County will receive sealed bids for the construction of a pre-engineered salt storage building and associated brine system at the Highway Maintenance Yard, including foundations, drainage, and electrical service.
Bids shall remain firm and may not be withdrawn for a period of sixty (60) days after the scheduled time for the opening of bids.
Plans, specifications, and contract documents are available electronically through the planroom upon registration as a planholder.
The successful bidder shall furnish performance and payment bonds in the full amount of the contract price.
The County reserves the right to reject any or all bids, to waive any informalities or irregularities, and to award the contract in the best interest of the project.
NOTICE TO BIDDERS
Sealed bids will be received by the Office of the City Clerk, City Hall, 214 Municipal Avenue, Millstone, North Dakota, until 11:00 a.m. on Thursday, June 18, 2026, at which time the bids will be publicly opened and read aloud in the council chambers for the construction of street resurfacing and utility repairs.
The work shall generally consist of asphalt milling, bituminous pavement overlay, curb and gutter replacement, storm sewer inlet repairs, sidewalk patching, pavement markings, and traffic control.
Each bid shall be accompanied by a certified check or bid bond in the amount of five percent (5%) of the total bid. The City reserves the right to reject any or all bids and to waive informalities.
Plans, specifications, and contract documents may be examined and obtained electronically through the planroom upon registration as a planholder. Addenda will be issued only through the planroom.
The successful bidder shall furnish performance and payment bonds, each in the amount of one hundred percent (100%) of the contract price, prior to commencement of the work.
The Owner reserves the right to reject any or all bids, to waive any informalities or irregularities, and to award the contract in the best interest of the project.
ADVERTISEMENT FOR BIDS
The Cedar Hollow Water District invites sealed bids for the replacement of approximately 6,400 linear feet of cast iron water main with ductile iron pipe, including service reconnections, valves, hydrants, and pavement restoration.
Plans and specifications may be examined at the office of the District Engineer or obtained electronically through the planroom upon registration as a planholder.
A pre-bid conference will be held at 10:00 a.m. on June 9, 2026, at the District operations building. Attendance is strongly encouraged but not mandatory.
INVITATION TO BID
The Northfield Consolidated School District is accepting sealed bids for the complete tear-off and replacement of the roofing system at Lincoln Elementary School, including insulation, membrane, flashing, and associated sheet metal work.
All work must be substantially complete prior to August 18, 2026. Contractors shall coordinate all activities with the District to avoid disruption of summer programming.
Each bid shall be accompanied by a certified check or bid bond in the amount of five percent (5%) of the total bid as a guarantee of execution.
The successful bidder shall furnish performance and payment bonds, each in the amount of one hundred percent (100%) of the contract price, prior to commencement of the work.
LEGAL NOTICE: REQUEST FOR BIDS
The County Highway Department will receive bids for the rehabilitation of the Maple Creek Bridge deck, including hydrodemolition, reinforcing steel repair, latex-modified concrete overlay, and joint replacement.
Prospective bidders must hold a valid prequalification rating with the State Department of Transportation in the applicable work class as of the bid date.
The successful bidder shall furnish performance and payment bonds, each equal to the full contract amount, prior to commencement of the work.
Questions regarding the project shall be submitted in writing through the planroom no later than five (5) business days prior to the bid opening.
Bids shall remain firm and may not be withdrawn for a period of sixty (60) days after the scheduled time for the opening of bids.
NOTICE TO CONTRACTORS
The Regional Wastewater Authority solicits bids for improvements to the Riverside Treatment Plant, including a new headworks structure, screening equipment, electrical and SCADA upgrades, and site civil work.
Each bid shall include an acknowledgement of all addenda issued through the planroom. Failure to acknowledge addenda may result in rejection of the bid.
ADVERTISEMENT FOR BIDS
The Parks and Recreation Department requests bids for site improvements at Veterans Memorial Park, including playground equipment, poured-in-place safety surfacing, concrete walkways, site furnishings, and landscape restoration.
The successful bidder shall furnish all labor, materials, tools, equipment, and transportation required for the full and complete performance of the contract.
Plans, specifications, and contract documents may be obtained electronically through the planroom upon registration as a planholder. Addenda will be issued only through the planroom.
Prevailing wage rates as determined by the Department of Labor shall apply to all work performed under this contract.
NOTICE TO BIDDERS
The Township of Brookside will receive sealed bids for the replacement of rooftop HVAC units and associated controls at the Municipal Services Building, including demolition, rigging, ductwork modifications, and balancing.
Bidders shall conduct a mandatory site walkthrough on June 11, 2026. No bid will be accepted from any contractor who did not attend.
Each bid shall be accompanied by a bid bond or certified check in the amount of ten percent (10%) of the total bid.
Work shall be substantially complete within one hundred twenty (120) consecutive calendar days from the date of the notice to proceed, with liquidated damages applying for each day of late completion.
The Township reserves the right to reject any or all bids and to waive any informalities or irregularities in the bidding process.
Plans, specifications, and contract documents are available electronically through the planroom upon registration as a planholder.
INVITATION TO BID
The Sanitary Sewer Authority invites bids for the trenchless rehabilitation of approximately 18,000 linear feet of sanitary sewer main by cured-in-place pipe lining, including service lateral reinstatement and manhole rehabilitation.
Bonds shall be furnished by a surety authorized to do business in the State and listed in the current U.S. Treasury Circular 570.
Prevailing wage rates as determined by the Department of Labor shall apply to all work performed under this contract.
ADVERTISEMENT FOR BIDS
The School Building Authority requests bids for the construction of a synthetic turf athletic field, including earthwork, drainage, base aggregate, turf system, fencing, and site lighting at Riverside High School.
Liquidated damages in the amount of $1,500 per calendar day shall apply for each day the work remains incomplete beyond the contract completion date.
Each bid shall be accompanied by a certified check or bid bond in the amount of five percent (5%) of the total bid as a guarantee of execution.
The successful bidder shall furnish performance and payment bonds, each in the amount of one hundred percent (100%) of the contract price, prior to commencement of the work.
Bids shall remain firm and may not be withdrawn for a period of sixty (60) days after the scheduled time for the opening of bids.
NOTICE TO CONTRACTORS
The City of Lakemont will receive bids for the construction of Fire Station No. 4, a single-story masonry and steel structure of approximately 11,200 square feet, including apparatus bays, living quarters, and site work.
Prevailing wage rates as determined by the Department of Labor shall apply to all work performed under this contract.
LEGAL NOTICE: REQUEST FOR BIDS
The Department of Public Works will receive bids for the installation of traffic signal systems and pedestrian improvements at five intersections along the Route 9 corridor, including mast arms, controllers, detection, and signing.
The work shall be coordinated with the State to maintain traffic flow during all phases of construction.
Bids shall remain firm and may not be withdrawn for a period of forty-five (45) days after the scheduled bid opening.
Questions regarding the project shall be submitted in writing through the planroom no later than five (5) business days prior to the bid opening.
INVITATION TO BID
The Redevelopment Authority invites sealed bids for the demolition and abatement of three vacant commercial structures, including hazardous material removal, foundation removal, backfill, and site stabilization.
All abatement work shall be performed by contractors licensed and certified in accordance with State and Federal regulations.
The Authority reserves the right to reject any or all bids, to waive any informalities or irregularities, and to award the contract in the best interest of the project.
A mandatory pre-bid site visit will be held at 10:00 a.m. on June 12, 2026; attendance is a condition of bid eligibility.
Plans, specifications, and contract documents may be obtained electronically through the planroom upon registration as a planholder.
Bids shall remain firm and may not be withdrawn for a period of sixty (60) days after the scheduled time for the opening of bids.
ADVERTISEMENT FOR BIDS
The Borough of Fairview requests bids for ADA-compliant sidewalk and curb ramp reconstruction at various locations, including detectable warning surfaces, driveway aprons, and pavement restoration.
Work shall be substantially complete within ninety (90) consecutive calendar days from the date of the notice to proceed.
Each bid shall be accompanied by a certified check or bid bond in the amount of five percent (5%) of the total bid as a guarantee of execution.
NOTICE TO BIDDERS
The County will receive sealed bids for the construction of a pre-engineered salt storage building and associated brine system at the Highway Maintenance Yard, including foundations, drainage, and electrical service.
Bids shall remain firm and may not be withdrawn for a period of sixty (60) days after the scheduled time for the opening of bids.
Plans, specifications, and contract documents are available electronically through the planroom upon registration as a planholder.
The successful bidder shall furnish performance and payment bonds in the full amount of the contract price.
The County reserves the right to reject any or all bids, to waive any informalities or irregularities, and to award the contract in the best interest of the project.
02 / The Problem

On a public bid, the record can't live in an email inbox.

Getting the same documents to every bidder isn't a courtesy, it's the duty the firm signed up for. Requests come by email, planholders live in a spreadsheet, and it holds until a bidder asks whether they got Addendum 3. When the inbox can't answer, one missed email isn't an inconvenience. It's exposure.
John Smith Construction 9:41am
Re: plans I still haven't received my plans, can you double check?
Apex Paving Co. 8:15am
Addendum 3? Did addendum 3 go out? My PM says he never got it.
Northstar Mechanical Yesterday
Full bid set Can you resend the full set? The Dropbox link expired.
Harbor Electric 7:52am
Are we current? Want to confirm we're on the latest drawings before we price it.
Valley Concrete 11:03pm
RE: RE: plans Looping in my estimator, he never got the original email.
Pinnacle Steel Mon
Planholders list Are we on the planholders list? Haven't heard anything.
03 / On the Record

When every request flows into one tracked place, the inbox stops being a liability.

That tracked place is the planholder list. Every request, every download, every "did you get the addendum" lands on it automatically, instead of scattering across an inbox. A bidder is captured the moment they obtain the documents; push a revision and it reaches all of them at once, each delivery logged and receipted. No bidder on a superseded set you didn't know about, no planholder missing from a hand-built list. You see the whole field, and can prove it, before the bids open.
Every planholder captured automatically. No sign-in sheet, no spreadsheet to maintain.
A revised sheet reaches every bidder at once , and each delivery is logged and receipted.
One screen answers "who has which version, and when." Instantly, and exportable.
Street Resurfacing & Utility Repairs · PW-26-041
4 planholders Live
05 / How It Works

How a project runs on Biddy.

Post the notice and upload the set; bidders request access from the project page instead of emailing for files. Each download adds them to your planholder list automatically. When something changes, one action sends the addendum to every planholder at once, and each delivery is logged.
Step 01 Publish Upload the set and publish the project. Bidders obtain access from the project page.
NOTICE PUBLIC
Step 02 Distribute Every download builds your planholder list automatically. No sign-in sheet.
Step 03 Reissue Push an addendum to every planholder at once. Logged and receipted.
ADDENDUM
Every step is recorded on the planholder list, and every delivery is logged.
06 / The Platform

Everything a public bid runs on.

archco.biddyhq.com/projects/new
Wanna save a few minutes? Drag and drop your Notice to Bid or Bid Info sheet here and let BiddyAI™ fill in the basic details for you

BiddyAI™ reads your notice PDF

Otherwise every project starts by retyping the notice into a form, field by field. Drop in the Notice to Bidders and BiddyAI™ pre-fills the project name, location, county, code, contracts, and bid dates. You review, edit, and publish. The data starts from the legal notice itself.
archco.biddyhq.com/projects
ArchCo ProjectsLeadsCalendar
128 Projects
Tupper Lake CSD - Capital ProjectFranklin County · GC Bids due Apr 30
Hudson Water Treatment PlantColumbia County · Site Bids due Nov 13
Saranac CSD - 2026 Capital OutlayClinton County · GC Bids due Dec 4
Bethpage Water District - MainNassau County · Site Bids due Dec 11
Carle Place UFSD - MasonryNassau County · GC Bids due Jan 8
Lincoln Elementary - HVACMillstone · HVAC Bidding closed

Your firm, on your domain

Skip it and bidders remember the software, not your firm. yourfirm.biddyhq.com with your logo and your colors, and emails that go out under your logo and name. Bidders see your firm and your open projects, not a software vendor. You stay the principal in the relationship.
archco.biddyhq.com/projects/pw-26-041/planholders
14 planholders
DateCompany / planholderDelivery
5/22 Smith Construction John Smith
5/22 Acme Electric Co. R. Díaz
5/21 Delta Mechanical P. Nguyen
5/21 Northland Plumbing K. Obi
5/20 Park Masonry LLC T. Walsh
5/20 Harbor Electric M. Cohen
5/20 Pinnacle Steel L. Wong
5/19 Summit Excavation R. Kelly
5/19 Ironwood Builders T. Lewis
5/18 Cornerstone Mechanical J. Barnes
5/18 Allstate Roofing S. White

The planholder list builds itself

Without it, you're rebuilding the planholder list by hand the night before bids open. Everyone who obtains the plans, specs, and updates lands on the planholder list automatically, with company, contact, contract, and delivery method. Add trade associations and lead services by hand when you need to.
archco.biddyhq.com/calendar
CalendarNov 2026
MTWTFSS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

One calendar for every bid date

Otherwise bid dates scatter across inboxes, and the one you miss is the one that counts. Every bid date and prebid meeting across your projects on one calendar: green for bids due, gray for prebids, on a public page anyone can check.
07 / Why Biddy

Email, lead services, or Biddy.

Most firms run distribution one of three ways. The difference that matters isn't speed. It's whether you're left with a planholder list you can trust and proof that every bidder got the change.
Email & Spreadsheets
Planhouses & Lead Services
Biddy
An automatic planholder list Always know your full field of bidders, captured the moment they pull documents.
Proof of delivery for every addendum If a bid is ever challenged, the receipts are already on the record.
An exportable record of the bid Hand off one clean, complete file, with nothing to reconstruct after the fact.
08 / Adoption

The firms that run the Northeast's public bids run them on Biddy.

Architecture, landscape, and engineering firms across the region run their public bids on Biddy. That includes the firms that handle K-12 school work, where the record has to hold up for years.
See who's live near you
H2M LAN Associates Mosaic Associates BBS Architects & Engineers CSArch BCA CPL Architects Engineers Tetra Tech H2M LAN Associates Mosaic Associates BBS Architects & Engineers CSArch BCA CPL Architects Engineers Tetra Tech H2M LAN Associates Mosaic Associates BBS Architects & Engineers CSArch BCA CPL Architects Engineers Tetra Tech H2M LAN Associates Mosaic Associates BBS Architects & Engineers CSArch BCA CPL Architects Engineers Tetra Tech H2M LAN Associates Mosaic Associates BBS Architects & Engineers CSArch BCA CPL Architects Engineers Tetra Tech H2M LAN Associates Mosaic Associates BBS Architects & Engineers CSArch BCA CPL Architects Engineers Tetra Tech
09 / Provenance

A century of document production.

Biddy comes out of a blueprint shop that opened on Long Island in 1926, reproducing the drawings, specifications, and addenda that architects and engineers sent out for public bid.
The blueprint expert in that clipping, Charlie Lohrius, is founder Brenden's great-grandfather, and his family has been getting bid documents right for almost a hundred years. The job always had a single standard: every contractor bidding had to work from exactly the same set, with every revision tracked, every changed sheet reissued, and a record kept of who received which version and when. Four generations on, Biddy applies that same discipline to every public bid in the Northeast.
1926 A family blueprint shop opens on Long Island, reproducing bid sets for local school districts and municipalities.
1960s Diazo and electric machines replace ammonia tanks. The same discipline, faster output.
1990s Drawings move to Adobe and AutoCAD. Digital plotting; the record still kept by hand.
2026 The same discipline, as software, for every public bid in the Northeast.
Vintage newspaper clipping titled Babe Ruths of Business featuring Charlie Lohrius, a champion blueprint expert, at a blueprint machine
10 / Get Started

Put your next bid on the record.

The firms doing this well aren't working harder at email. They've moved the distribution onto a system that keeps the proof for them. You can put your next live project on it in about twenty minutes, and have the planholder list and the delivery record building from the first download.
Your next project, live in 20 minutes 20:00
00:00 Quick demo of the platform Demo
00:04 Your white-label planroom, set up Branded
00:11 Post and publish your first notice Live
00:18 First bidder in, list builds itself On the list